From 93e5fdfe612794c8a6ffbb68533efbb2709f59cc Mon Sep 17 00:00:00 2001
From: Peter Dave Hello <hsu@peterdavehello.org>
Date: Fri, 22 Aug 2014 02:18:56 +0800
Subject: [PATCH] add v0.1.0~0.16.0 of es6-shim, except 0.11.0

---
 ajax/libs/es6-shim/0.1.0/es6-shim.js      |  236 +++
 ajax/libs/es6-shim/0.1.0/es6-shim.min.js  |    1 +
 ajax/libs/es6-shim/0.10.0/es6-shim.js     | 1829 ++++++++++++++++++++
 ajax/libs/es6-shim/0.10.0/es6-shim.min.js |    1 +
 ajax/libs/es6-shim/0.10.1/es6-shim.js     | 1833 ++++++++++++++++++++
 ajax/libs/es6-shim/0.10.1/es6-shim.min.js |    1 +
 ajax/libs/es6-shim/0.11.1/es6-shim.js     | 1856 ++++++++++++++++++++
 ajax/libs/es6-shim/0.11.1/es6-shim.map    |    1 +
 ajax/libs/es6-shim/0.11.1/es6-shim.min.js |    2 +
 ajax/libs/es6-shim/0.12.0/es6-shim.js     | 1882 ++++++++++++++++++++
 ajax/libs/es6-shim/0.12.0/es6-shim.map    |    1 +
 ajax/libs/es6-shim/0.12.0/es6-shim.min.js |    2 +
 ajax/libs/es6-shim/0.13.0/es6-shim.js     | 1887 +++++++++++++++++++++
 ajax/libs/es6-shim/0.13.0/es6-shim.map    |    1 +
 ajax/libs/es6-shim/0.13.0/es6-shim.min.js |    2 +
 ajax/libs/es6-shim/0.14.0/es6-shim.js     | 1882 ++++++++++++++++++++
 ajax/libs/es6-shim/0.14.0/es6-shim.map    |    1 +
 ajax/libs/es6-shim/0.14.0/es6-shim.min.js |    2 +
 ajax/libs/es6-shim/0.15.0/es6-shim.js     | 1879 ++++++++++++++++++++
 ajax/libs/es6-shim/0.15.0/es6-shim.map    |    1 +
 ajax/libs/es6-shim/0.15.0/es6-shim.min.js |    2 +
 ajax/libs/es6-shim/0.15.1/es6-shim.js     | 1881 ++++++++++++++++++++
 ajax/libs/es6-shim/0.15.1/es6-shim.map    |    1 +
 ajax/libs/es6-shim/0.15.1/es6-shim.min.js |    2 +
 ajax/libs/es6-shim/0.16.0/es6-shim.js     | 1877 ++++++++++++++++++++
 ajax/libs/es6-shim/0.16.0/es6-shim.map    |    1 +
 ajax/libs/es6-shim/0.16.0/es6-shim.min.js |    2 +
 ajax/libs/es6-shim/0.2.0/es6-shim.js      |  244 +++
 ajax/libs/es6-shim/0.2.0/es6-shim.min.js  |    1 +
 ajax/libs/es6-shim/0.2.1/es6-shim.js      |  232 +++
 ajax/libs/es6-shim/0.2.1/es6-shim.min.js  |    1 +
 ajax/libs/es6-shim/0.3.0/es6-shim.js      |  234 +++
 ajax/libs/es6-shim/0.3.0/es6-shim.min.js  |    1 +
 ajax/libs/es6-shim/0.3.1/es6-shim.js      |  234 +++
 ajax/libs/es6-shim/0.3.1/es6-shim.min.js  |    1 +
 ajax/libs/es6-shim/0.4.0/es6-shim.js      |  309 ++++
 ajax/libs/es6-shim/0.4.0/es6-shim.min.js  |    1 +
 ajax/libs/es6-shim/0.4.1/es6-shim.js      |  308 ++++
 ajax/libs/es6-shim/0.4.1/es6-shim.min.js  |    1 +
 ajax/libs/es6-shim/0.5.0/es6-shim.js      |  329 ++++
 ajax/libs/es6-shim/0.5.0/es6-shim.min.js  |    1 +
 ajax/libs/es6-shim/0.5.1/es6-shim.js      |  324 ++++
 ajax/libs/es6-shim/0.5.1/es6-shim.min.js  |    1 +
 ajax/libs/es6-shim/0.5.2/es6-shim.js      |  316 ++++
 ajax/libs/es6-shim/0.5.2/es6-shim.min.js  |    1 +
 ajax/libs/es6-shim/0.5.3/es6-shim.js      |  397 +++++
 ajax/libs/es6-shim/0.5.3/es6-shim.min.js  |    1 +
 ajax/libs/es6-shim/0.6.0/es6-shim.js      |  434 +++++
 ajax/libs/es6-shim/0.6.0/es6-shim.min.js  |    1 +
 ajax/libs/es6-shim/0.7.0/es6-shim.js      |  621 +++++++
 ajax/libs/es6-shim/0.7.0/es6-shim.min.js  |    1 +
 ajax/libs/es6-shim/0.8.0/es6-shim.js      |  846 +++++++++
 ajax/libs/es6-shim/0.8.0/es6-shim.min.js  |    1 +
 ajax/libs/es6-shim/0.9.0/es6-shim.js      |  857 ++++++++++
 ajax/libs/es6-shim/0.9.0/es6-shim.min.js  |    1 +
 ajax/libs/es6-shim/0.9.1/es6-shim.js      |  996 +++++++++++
 ajax/libs/es6-shim/0.9.1/es6-shim.min.js  |    1 +
 ajax/libs/es6-shim/0.9.2/es6-shim.js      | 1000 +++++++++++
 ajax/libs/es6-shim/0.9.2/es6-shim.min.js  |    1 +
 ajax/libs/es6-shim/0.9.3/es6-shim.js      | 1277 ++++++++++++++
 ajax/libs/es6-shim/0.9.3/es6-shim.min.js  |    1 +
 ajax/libs/es6-shim/package.json           |    2 +-
 62 files changed, 26042 insertions(+), 1 deletion(-)
 create mode 100644 ajax/libs/es6-shim/0.1.0/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.1.0/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.10.0/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.10.0/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.10.1/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.10.1/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.11.1/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.11.1/es6-shim.map
 create mode 100644 ajax/libs/es6-shim/0.11.1/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.12.0/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.12.0/es6-shim.map
 create mode 100644 ajax/libs/es6-shim/0.12.0/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.13.0/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.13.0/es6-shim.map
 create mode 100644 ajax/libs/es6-shim/0.13.0/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.14.0/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.14.0/es6-shim.map
 create mode 100644 ajax/libs/es6-shim/0.14.0/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.15.0/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.15.0/es6-shim.map
 create mode 100644 ajax/libs/es6-shim/0.15.0/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.15.1/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.15.1/es6-shim.map
 create mode 100644 ajax/libs/es6-shim/0.15.1/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.16.0/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.16.0/es6-shim.map
 create mode 100644 ajax/libs/es6-shim/0.16.0/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.2.0/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.2.0/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.2.1/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.2.1/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.3.0/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.3.0/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.3.1/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.3.1/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.4.0/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.4.0/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.4.1/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.4.1/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.5.0/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.5.0/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.5.1/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.5.1/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.5.2/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.5.2/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.5.3/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.5.3/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.6.0/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.6.0/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.7.0/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.7.0/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.8.0/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.8.0/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.9.0/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.9.0/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.9.1/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.9.1/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.9.2/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.9.2/es6-shim.min.js
 create mode 100644 ajax/libs/es6-shim/0.9.3/es6-shim.js
 create mode 100644 ajax/libs/es6-shim/0.9.3/es6-shim.min.js

diff --git a/ajax/libs/es6-shim/0.1.0/es6-shim.js b/ajax/libs/es6-shim/0.1.0/es6-shim.js
new file mode 100644
index 000000000..50c5ff033
--- /dev/null
+++ b/ajax/libs/es6-shim/0.1.0/es6-shim.js
@@ -0,0 +1,236 @@
+(function(definition) {
+  // RequireJS.
+  if (typeof define === 'function') {
+    define(definition);
+  // CommonJS and <script>.
+  } else {
+    definition();
+  }
+})(function() {
+  'use strict';
+
+  var globall = (typeof global === 'undefined') ? window : global;
+  var global_isNaN = globall.isNaN;
+  var global_isFinite = globall.isFinite;
+
+  var defineProperty = function(object, name, method) {
+    if (!object[name]) {
+      Object.defineProperty(object, name, {
+        configurable: true,
+        enumerable: false,
+        writable: true,
+        value: method
+      });
+    }
+  };
+
+  var defineProperties = function(object, map) {
+    Object.keys(map).forEach(function(name) {
+      defineProperty(object, name, map[name]);
+    });
+  };
+
+  var sign = function(n) {
+    return (n < 0) ? -1 : 1;
+  };
+  
+  var unique = function(iterable) {
+    return Array.from(Set.from(iterable));
+  };
+
+  // http://wiki.ecmascript.org/doku.php?id=harmony:string.prototype.repeat
+  // http://wiki.ecmascript.org/doku.php?id=harmony:string_extras
+  defineProperties(String.prototype, {
+    repeat: function(times) {
+      return new Array(times + 1).join(this);
+    },
+    startsWith: function(substring) {
+      return this.indexOf(substring) === 0;
+    },
+    endsWith: function(s) {
+      var t = String(s);
+      return this.lastIndexOf(t) === this.length - t.length;
+    },
+    contains: function(s) {
+      return this.indexOf(s) !== -1;
+    },
+    toArray: function() {
+      return this.split('');
+    }
+  });
+
+  // https://gist.github.com/1074126
+  defineProperties(Array, {
+    from: function(iterable) {
+      var object = Object(iterable);
+      var array = [];
+
+      for (var key = 0, length = object.length >>> 0; key < length; key++) {
+        if (key in object) {
+          array[key] = object[key];
+        }
+      }
+
+      return array;
+    },
+
+    of: function() {
+      return Array.prototype.slice.call(arguments);
+    }
+  });
+
+  defineProperties(Number, {
+    isInteger: function(value) {
+      return typeof value === 'number' && global_isFinite(value) && 
+        value > -9007199254740992 && value < 9007199254740992 &&
+        Math.floor(value) === value;
+    },
+
+    isNaN: function(value) {
+      return typeof value === 'number' && global_isNaN(value);
+    },
+
+    toInteger: function(value) {
+      var n = +value;
+      if (isNaN(n)) return +0;
+      if (n === 0 || !global_isFinite(n)) return n;
+      return sign(n) * Math.floor(Math.abs(n));
+    }
+  });
+
+  defineProperties(Object, {
+    getOwnPropertyDescriptors: function(subject) {
+      var descs = {};
+      Object.getOwnPropertyNames(subject).forEach(function(propName) {
+        descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+      });
+      return descs;
+    },
+
+    getPropertyDescriptor: function(subject, name) {
+      var pd = Object.getOwnPropertyDescriptor(subject, name);
+      var proto = Object.getPrototypeOf(subject);
+      while (pd === undefined && proto !== null) {
+        pd = Object.getOwnPropertyDescriptor(proto, name);
+        proto = Object.getPrototypeOf(proto);
+      }
+      return pd;
+    },
+
+    getPropertyNames: function(subject, name) {
+      var set = Set.from(Object.getOwnPropertyNames(subject));
+      var proto = Object.getPrototypeOf(subject);
+      while (proto !== null) {
+        Object.getOwnPropertyNames(proto).forEach(set.add);
+        proto = Object.getPrototypeOf(proto);
+      }
+      return Array.from(set);
+    },
+
+    is: function(x, y) {
+      if (x === y) {
+        // 0 === -0, but they are not identical
+        return x !== 0 || 1 / x === 1 / y;
+      }
+
+      // NaN !== NaN, but they are identical.
+      // NaNs are the only non-reflexive value, i.e., if x !== x,
+      // then x is a NaN.
+      // isNaN is broken: it converts its argument to number, so
+      // isNaN("foo") => true
+      return x !== x && y !== y;
+    }
+  });
+
+  defineProperties(globall, {
+    Map: (function() {
+      var indexOfIdentical = function(keys, key) {
+        for (var i = 0, length = keys.length; i < length; i++) {
+          if (Object.is(keys[i], key)) return i;
+        }
+        return -1;
+      };
+
+      function Map() {
+        if (!(this instanceof Map)) return new Map;
+        defineProperty(this, 'keys', []);
+        defineProperty(this, 'values', []);
+      }
+
+      defineProperties(Map.prototype, {
+        get: function(key) {
+          var index = indexOfIdentical(this.keys, key);
+          return index < 0 ? undefined : this.values[index];
+        },
+
+        has: function(key) {
+          return indexOfIdentical(this.keys, key) >= 0;
+        },
+
+        set: function(key, value) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) index = keys.length;
+          keys[index] = key;
+          values[index] = value;
+        },
+
+        'delete': function(key) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) return false;
+          keys.splice(index, 1);
+          values.splice(index, 1);
+          return true;
+        }
+      });
+      return Map;
+      // TODO: iteration.
+    })(),
+
+    Set: (function() {
+      function Set() {
+        if (!(this instanceof Set)) return new Set;
+        defineProperty(this, 'map', Map());
+      }
+
+      defineProperties(Set.prototype, {
+        has: function(key) {
+          return this.map.has(key);
+        },
+
+        add: function(key) {
+          this.map.set(key, true);
+        },
+
+        'delete': function(key) {
+          return this.map.delete(key);
+        }
+      });
+
+      return Set;
+      // TODO: iteration.
+    })()
+  });
+  
+  defineProperties(globall.Set, {
+    from: function(iterable) {
+      var object = Object(iterable);
+      var set = Set();
+
+      for (var key = 0, length = object.length >>> 0; key < length; key++) {
+        if (key in object && !(set.has(key))) {
+          set.add(object[key]);
+        }
+      }
+
+      return set;
+    },
+
+    of: function() {
+      return Set.from(arguments);
+    }
+  });
+});
diff --git a/ajax/libs/es6-shim/0.1.0/es6-shim.min.js b/ajax/libs/es6-shim/0.1.0/es6-shim.min.js
new file mode 100644
index 000000000..6133997a9
--- /dev/null
+++ b/ajax/libs/es6-shim/0.1.0/es6-shim.min.js
@@ -0,0 +1 @@
+!function(t){"function"==typeof define?define(t):t()}(function(){"use strict";var t="undefined"==typeof global?window:global,e=t.isNaN,n=t.isFinite,r=function(t,e,n){t[e]||Object.defineProperty(t,e,{configurable:!0,enumerable:!1,writable:!0,value:n})},o=function(t,e){Object.keys(e).forEach(function(n){r(t,n,e[n])})},i=function(t){return 0>t?-1:1};o(String.prototype,{repeat:function(t){return new Array(t+1).join(this)},startsWith:function(t){return 0===this.indexOf(t)},endsWith:function(t){var e=String(t);return this.lastIndexOf(e)===this.length-e.length},contains:function(t){return-1!==this.indexOf(t)},toArray:function(){return this.split("")}}),o(Array,{from:function(t){for(var e=Object(t),n=[],r=0,o=e.length>>>0;o>r;r++)r in e&&(n[r]=e[r]);return n},of:function(){return Array.prototype.slice.call(arguments)}}),o(Number,{isInteger:function(t){return"number"==typeof t&&n(t)&&t>-9007199254740992&&9007199254740992>t&&Math.floor(t)===t},isNaN:function(t){return"number"==typeof t&&e(t)},toInteger:function(t){var e=+t;return isNaN(e)?0:0!==e&&n(e)?i(e)*Math.floor(Math.abs(e)):e}}),o(Object,{getOwnPropertyDescriptors:function(t){var e={};return Object.getOwnPropertyNames(t).forEach(function(n){e[n]=Object.getOwnPropertyDescriptor(t,n)}),e},getPropertyDescriptor:function(t,e){for(var n=Object.getOwnPropertyDescriptor(t,e),r=Object.getPrototypeOf(t);void 0===n&&null!==r;)n=Object.getOwnPropertyDescriptor(r,e),r=Object.getPrototypeOf(r);return n},getPropertyNames:function(t){for(var e=Set.from(Object.getOwnPropertyNames(t)),n=Object.getPrototypeOf(t);null!==n;)Object.getOwnPropertyNames(n).forEach(e.add),n=Object.getPrototypeOf(n);return Array.from(e)},is:function(t,e){return t===e?0!==t||1/t===1/e:t!==t&&e!==e}}),o(t,{Map:function(){function t(){return this instanceof t?(r(this,"keys",[]),void r(this,"values",[])):new t}var e=function(t,e){for(var n=0,r=t.length;r>n;n++)if(Object.is(t[n],e))return n;return-1};return o(t.prototype,{get:function(t){var n=e(this.keys,t);return 0>n?void 0:this.values[n]},has:function(t){return e(this.keys,t)>=0},set:function(t,n){var r=this.keys,o=this.values,i=e(r,t);0>i&&(i=r.length),r[i]=t,o[i]=n},"delete":function(t){var n=this.keys,r=this.values,o=e(n,t);return 0>o?!1:(n.splice(o,1),r.splice(o,1),!0)}}),t}(),Set:function(){function t(){return this instanceof t?void r(this,"map",Map()):new t}return o(t.prototype,{has:function(t){return this.map.has(t)},add:function(t){this.map.set(t,!0)},"delete":function(t){return this.map.delete(t)}}),t}()}),o(t.Set,{from:function(t){for(var e=Object(t),n=Set(),r=0,o=e.length>>>0;o>r;r++)r in e&&!n.has(r)&&n.add(e[r]);return n},of:function(){return Set.from(arguments)}})});
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.10.0/es6-shim.js b/ajax/libs/es6-shim/0.10.0/es6-shim.js
new file mode 100644
index 000000000..654af5516
--- /dev/null
+++ b/ajax/libs/es6-shim/0.10.0/es6-shim.js
@@ -0,0 +1,1829 @@
+// ES6-shim 0.10.0 (c) 2013-2014 Paul Miller (http://paulmillr.com)
+// ES6-shim may be freely distributed under the MIT license.
+// For more details and documentation:
+// https://github.com/paulmillr/es6-shim/
+
+(function(undefined) {
+  'use strict';
+
+  var isCallableWithoutNew = function(func) {
+    try { func(); }
+    catch (e) { return false; }
+    return true;
+  };
+
+  var supportsSubclassing = function(C, f) {
+    /* jshint proto:true */
+    try {
+      var Sub = function() { C.apply(this, arguments); };
+      if (!Sub.__proto__) { return false; /* skip test on IE < 11 */ }
+      Object.setPrototypeOf(Sub, C);
+      Sub.prototype = Object.create(C.prototype, {
+        constructor: { value: C }
+      });
+      return f(Sub);
+    } catch (e) {
+      return false;
+    }
+  };
+
+  var arePropertyDescriptorsSupported = function() {
+    try {
+      Object.defineProperty({}, 'x', {});
+      return true;
+    } catch (e) { /* this is IE 8. */
+      return false;
+    }
+  };
+
+  var startsWithRejectsRegex = function() {
+    var rejectsRegex = false;
+    if (String.prototype.startsWith) {
+      try {
+        '/a/'.startsWith(/a/);
+      } catch (e) { /* this is spec compliant */
+        rejectsRegex = true;
+      }
+    }
+    return rejectsRegex;
+  };
+
+  var main = function() {
+    var globals = (typeof global === 'undefined') ? window : global;
+    var global_isFinite = globals.isFinite;
+    var supportsDescriptors = !!Object.defineProperty && arePropertyDescriptorsSupported();
+    var startsWithIsCompliant = startsWithRejectsRegex();
+    var _slice = Array.prototype.slice;
+    var _indexOf = String.prototype.indexOf;
+    var _toString = Object.prototype.toString;
+    var _hasOwnProperty = Object.prototype.hasOwnProperty;
+
+    // Define configurable, writable and non-enumerable props
+    // if they don’t exist.
+    var defineProperties = function(object, map) {
+      Object.keys(map).forEach(function(name) {
+        var method = map[name];
+        if (name in object) return;
+        if (supportsDescriptors) {
+          Object.defineProperty(object, name, {
+            configurable: true,
+            enumerable: false,
+            writable: true,
+            value: method
+          });
+        } else {
+          object[name] = method;
+        }
+      });
+    };
+
+    // This is a private name in the es6 spec, equal to '[Symbol.iterator]'
+    // we're going to use an arbitrary _-prefixed name to make our shims
+    // work properly with each other, even though we don't have full Iterator
+    // support.  That is, `Array.from(map.keys())` will work, but we don't
+    // pretend to export a "real" Iterator interface.
+    var $iterator$ = (typeof Symbol === 'object' && Symbol.iterator) ||
+      '_es6shim_iterator_';
+    // Firefox ships a partial implementation using the name @@iterator.
+    // https://bugzilla.mozilla.org/show_bug.cgi?id=907077#c14
+    // So use that name if we detect it.
+    if (globals.Set && typeof new globals.Set()['@@iterator'] === 'function') {
+      $iterator$ = '@@iterator';
+    }
+    var addIterator = function(prototype, impl) {
+      if (!impl) { impl = function iterator() { return this; }; }
+      var o = {};
+      o[$iterator$] = impl;
+      defineProperties(prototype, o);
+    };
+
+    // taken directly from https://github.com/ljharb/is-arguments/blob/master/index.js
+    // can be replaced with require('is-arguments') if we ever use a build process instead
+    var isArguments = function isArguments(value) {
+      var str = _toString.call(value);
+      var result = str === '[object Arguments]';
+      if (!result) {
+        result = str !== '[object Array]' &&
+          value !== null &&
+          typeof value === 'object' &&
+          typeof value.length === 'number' &&
+          value.length >= 0 &&
+          _toString.call(value.callee) === '[object Function]';
+      }
+      return result;
+    };
+
+    var emulateES6construct = function(o) {
+      if (!ES.TypeIsObject(o)) throw new TypeError('bad object');
+      // es5 approximation to es6 subclass semantics: in es6, 'new Foo'
+      // would invoke Foo.@@create to allocation/initialize the new object.
+      // In es5 we just get the plain object.  So if we detect an
+      // uninitialized object, invoke o.constructor.@@create
+      if (!o._es6construct) {
+        if (o.constructor && ES.IsCallable(o.constructor['@@create'])) {
+          o = o.constructor['@@create'](o);
+        }
+        defineProperties(o, { _es6construct: true });
+      }
+      return o;
+    };
+
+    var ES = {
+      CheckObjectCoercible: function(x, optMessage) {
+        /* jshint eqnull:true */
+        if (x == null)
+          throw new TypeError(optMessage || ('Cannot call method on ' + x));
+        return x;
+      },
+
+      TypeIsObject: function(x) {
+        /* jshint eqnull:true */
+        // this is expensive when it returns false; use this function
+        // when you expect it to return true in the common case.
+        return x != null && Object(x) === x;
+      },
+
+      ToObject: function(o, optMessage) {
+        return Object(ES.CheckObjectCoercible(o, optMessage));
+      },
+
+      IsCallable: function(x) {
+        return typeof x === 'function' &&
+          // some versions of IE say that typeof /abc/ === 'function'
+          _toString.call(x) === '[object Function]';
+      },
+
+      ToInt32: function(x) {
+        return x >> 0;
+      },
+
+      ToUint32: function(x) {
+        return x >>> 0;
+      },
+
+      ToInteger: function(value) {
+        var number = +value;
+        if (Number.isNaN(number)) return 0;
+        if (number === 0 || !Number.isFinite(number)) return number;
+        return Math.sign(number) * Math.floor(Math.abs(number));
+      },
+
+      ToLength: function(value) {
+        var len = ES.ToInteger(value);
+        if (len <= 0) return 0; // includes converting -0 to +0
+        if (len > Number.MAX_SAFE_INTEGER) return Number.MAX_SAFE_INTEGER;
+        return len;
+      },
+
+      SameValue: function(a, b) {
+        if (a === b) {
+          // 0 === -0, but they are not identical.
+          if (a === 0) return 1 / a === 1 / b;
+          return true;
+        }
+        return Number.isNaN(a) && Number.isNaN(b);
+      },
+
+      SameValueZero: function(a, b) {
+        // same as SameValue except for SameValueZero(+0, -0) == true
+        return (a === b) || (Number.isNaN(a) && Number.isNaN(b));
+      },
+
+      IsIterable: function(o) {
+        return ES.TypeIsObject(o) &&
+          (ES.IsCallable(o[$iterator$]) || isArguments(o));
+      },
+
+      GetIterator: function(o) {
+        if (isArguments(o)) {
+          // special case support for `arguments`
+          return new ArrayIterator(o, "value");
+        }
+        var it = o[$iterator$]();
+        if (!ES.TypeIsObject(it)) {
+          throw new TypeError('bad iterator');
+        }
+        return it;
+      },
+
+      IteratorNext: function(it) {
+        var result = (arguments.length > 1) ? it.next(arguments[1]) : it.next();
+        if (!ES.TypeIsObject(result)) {
+          throw new TypeError('bad iterator');
+        }
+        return result;
+      },
+
+      Construct: function(C, args) {
+        // CreateFromConstructor
+        var obj;
+        if (ES.IsCallable(C['@@create'])) {
+          obj = C['@@create']();
+        } else {
+          // OrdinaryCreateFromConstructor
+          obj = Object.create(C.prototype || null);
+        }
+        // Mark that we've used the es6 construct path
+        // (see emulateES6construct)
+        defineProperties(obj, { _es6construct: true });
+        // Call the constructor.
+        var result = C.apply(obj, args);
+        return ES.TypeIsObject(result) ? result : obj;
+      }
+    };
+
+    var numberConversion = (function () {
+      // from https://github.com/inexorabletash/polyfill/blob/master/typedarray.js#L176-L266
+      // with permission and license, per https://twitter.com/inexorabletash/status/372206509540659200
+
+      function roundToEven(n) {
+        var w = Math.floor(n), f = n - w;
+        if (f < 0.5) {
+          return w;
+        }
+        if (f > 0.5) {
+          return w + 1;
+        }
+        return w % 2 ? w + 1 : w;
+      }
+
+      function packIEEE754(v, ebits, fbits) {
+        var bias = (1 << (ebits - 1)) - 1,
+          s, e, f, ln,
+          i, bits, str, bytes;
+
+        // Compute sign, exponent, fraction
+        if (v !== v) {
+          // NaN
+          // http://dev.w3.org/2006/webapi/WebIDL/#es-type-mapping
+          e = (1 << ebits) - 1;
+          f = Math.pow(2, fbits - 1);
+          s = 0;
+        } else if (v === Infinity || v === -Infinity) {
+          e = (1 << ebits) - 1;
+          f = 0;
+          s = (v < 0) ? 1 : 0;
+        } else if (v === 0) {
+          e = 0;
+          f = 0;
+          s = (1 / v === -Infinity) ? 1 : 0;
+        } else {
+          s = v < 0;
+          v = Math.abs(v);
+
+          if (v >= Math.pow(2, 1 - bias)) {
+            e = Math.min(Math.floor(Math.log(v) / Math.LN2), 1023);
+            f = roundToEven(v / Math.pow(2, e) * Math.pow(2, fbits));
+            if (f / Math.pow(2, fbits) >= 2) {
+              e = e + 1;
+              f = 1;
+            }
+            if (e > bias) {
+              // Overflow
+              e = (1 << ebits) - 1;
+              f = 0;
+            } else {
+              // Normal
+              e = e + bias;
+              f = f - Math.pow(2, fbits);
+            }
+          } else {
+            // Subnormal
+            e = 0;
+            f = roundToEven(v / Math.pow(2, 1 - bias - fbits));
+          }
+        }
+
+        // Pack sign, exponent, fraction
+        bits = [];
+        for (i = fbits; i; i -= 1) {
+          bits.push(f % 2 ? 1 : 0);
+          f = Math.floor(f / 2);
+        }
+        for (i = ebits; i; i -= 1) {
+          bits.push(e % 2 ? 1 : 0);
+          e = Math.floor(e / 2);
+        }
+        bits.push(s ? 1 : 0);
+        bits.reverse();
+        str = bits.join('');
+
+        // Bits to bytes
+        bytes = [];
+        while (str.length) {
+          bytes.push(parseInt(str.substring(0, 8), 2));
+          str = str.substring(8);
+        }
+        return bytes;
+      }
+
+      function unpackIEEE754(bytes, ebits, fbits) {
+        // Bytes to bits
+        var bits = [], i, j, b, str,
+            bias, s, e, f;
+
+        for (i = bytes.length; i; i -= 1) {
+          b = bytes[i - 1];
+          for (j = 8; j; j -= 1) {
+            bits.push(b % 2 ? 1 : 0);
+            b = b >> 1;
+          }
+        }
+        bits.reverse();
+        str = bits.join('');
+
+        // Unpack sign, exponent, fraction
+        bias = (1 << (ebits - 1)) - 1;
+        s = parseInt(str.substring(0, 1), 2) ? -1 : 1;
+        e = parseInt(str.substring(1, 1 + ebits), 2);
+        f = parseInt(str.substring(1 + ebits), 2);
+
+        // Produce number
+        if (e === (1 << ebits) - 1) {
+          return f !== 0 ? NaN : s * Infinity;
+        } else if (e > 0) {
+          // Normalized
+          return s * Math.pow(2, e - bias) * (1 + f / Math.pow(2, fbits));
+        } else if (f !== 0) {
+          // Denormalized
+          return s * Math.pow(2, -(bias - 1)) * (f / Math.pow(2, fbits));
+        } else {
+          return s < 0 ? -0 : 0;
+        }
+      }
+
+      function unpackFloat64(b) { return unpackIEEE754(b, 11, 52); }
+      function packFloat64(v) { return packIEEE754(v, 11, 52); }
+      function unpackFloat32(b) { return unpackIEEE754(b, 8, 23); }
+      function packFloat32(v) { return packIEEE754(v, 8, 23); }
+
+      var conversions = {
+        toFloat32: function (num) { return unpackFloat32(packFloat32(num)); }
+      };
+      if (typeof Float32Array !== 'undefined') {
+        var float32array = new Float32Array(1);
+        conversions.toFloat32 = function (num) {
+          float32array[0] = num;
+          return float32array[0];
+        };
+      }
+      return conversions;
+    }());
+
+    defineProperties(String, {
+      fromCodePoint: function() {
+        var points = _slice.call(arguments, 0, arguments.length);
+        var result = [];
+        var next;
+        for (var i = 0, length = points.length; i < length; i++) {
+          next = Number(points[i]);
+          if (!ES.SameValue(next, ES.ToInteger(next)) ||
+              next < 0 || next > 0x10FFFF) {
+            throw new RangeError('Invalid code point ' + next);
+          }
+
+          if (next < 0x10000) {
+            result.push(String.fromCharCode(next));
+          } else {
+            next -= 0x10000;
+            result.push(String.fromCharCode((next >> 10) + 0xD800));
+            result.push(String.fromCharCode((next % 0x400) + 0xDC00));
+          }
+        }
+        return result.join('');
+      },
+
+      raw: function(callSite) { // raw.length===1
+        var substitutions = _slice.call(arguments, 1, arguments.length);
+        var cooked = ES.ToObject(callSite, 'bad callSite');
+        var rawValue = cooked.raw;
+        var raw = ES.ToObject(rawValue, 'bad raw value');
+        var len = Object.keys(raw).length;
+        var literalsegments = ES.ToLength(len);
+        if (literalsegments === 0) {
+          return '';
+        }
+
+        var stringElements = [];
+        var nextIndex = 0;
+        var nextKey, next, nextSeg, nextSub;
+        while (nextIndex < literalsegments) {
+          nextKey = String(nextIndex);
+          next = raw[nextKey];
+          nextSeg = String(next);
+          stringElements.push(nextSeg);
+          if (nextIndex + 1 >= literalsegments) {
+            break;
+          }
+          next = substitutions[nextKey];
+          if (next === undefined) {
+            break;
+          }
+          nextSub = String(next);
+          stringElements.push(nextSub);
+          nextIndex++;
+        }
+        return stringElements.join('');
+      }
+    });
+
+    var StringShims = {
+      // Fast repeat, uses the `Exponentiation by squaring` algorithm.
+      // Perf: http://jsperf.com/string-repeat2/2
+      repeat: (function() {
+        var repeat = function(s, times) {
+          if (times < 1) return '';
+          if (times % 2) return repeat(s, times - 1) + s;
+          var half = repeat(s, times / 2);
+          return half + half;
+        };
+
+        return function(times) {
+          var thisStr = String(ES.CheckObjectCoercible(this));
+          times = ES.ToInteger(times);
+          if (times < 0 || times === Infinity) {
+            throw new RangeError('Invalid String#repeat value');
+          }
+          return repeat(thisStr, times);
+        };
+      })(),
+
+      startsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "startsWith" with a regex');
+        searchStr = String(searchStr);
+        var startArg = arguments.length > 1 ? arguments[1] : undefined;
+        var start = Math.max(ES.ToInteger(startArg), 0);
+        return thisStr.slice(start, start + searchStr.length) === searchStr;
+      },
+
+      endsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "endsWith" with a regex');
+        searchStr = String(searchStr);
+        var thisLen = thisStr.length;
+        var posArg = arguments.length > 1 ? arguments[1] : undefined;
+        var pos = posArg === undefined ? thisLen : ES.ToInteger(posArg);
+        var end = Math.min(Math.max(pos, 0), thisLen);
+        return thisStr.slice(end - searchStr.length, end) === searchStr;
+      },
+
+      contains: function(searchString) {
+        var position = arguments.length > 1 ? arguments[1] : undefined;
+        // Somehow this trick makes method 100% compat with the spec.
+        return _indexOf.call(this, searchString, position) !== -1;
+      },
+
+      codePointAt: function(pos) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        var position = ES.ToInteger(pos);
+        var length = thisStr.length;
+        if (position < 0 || position >= length) return undefined;
+        var first = thisStr.charCodeAt(position);
+        var isEnd = (position + 1 === length);
+        if (first < 0xD800 || first > 0xDBFF || isEnd) return first;
+        var second = thisStr.charCodeAt(position + 1);
+        if (second < 0xDC00 || second > 0xDFFF) return first;
+        return ((first - 0xD800) * 1024) + (second - 0xDC00) + 0x10000;
+      }
+    };
+    defineProperties(String.prototype, StringShims);
+
+    // see https://people.mozilla.org/~jorendorff/es6-draft.html#sec-string.prototype-@@iterator
+    var StringIterator = function(s) {
+      this._s = String(ES.CheckObjectCoercible(s));
+      this._i = 0;
+    };
+    StringIterator.prototype.next = function() {
+      var s = this._s, i = this._i;
+      if (s===undefined || i >= s.length) {
+        this._s = undefined;
+        return { value: undefined, done: true };
+      }
+      var first = s.charCodeAt(i), second, len;
+      if (first < 0xD800 || first > 0xDBFF || (i+1) == s.length) {
+        len = 1;
+      } else {
+        second = s.charCodeAt(i+1);
+        len = (second < 0xDC00 || second > 0xDFFF) ? 1 : 2;
+      }
+      this._i = i + len;
+      return { value: s.substr(i, len), done: false };
+    };
+    addIterator(StringIterator.prototype);
+    addIterator(String.prototype, function() {
+      return new StringIterator(this);
+    });
+
+    if (!startsWithIsCompliant) {
+      // Firefox has a noncompliant startsWith implementation
+      String.prototype.startsWith = StringShims.startsWith;
+      String.prototype.endsWith = StringShims.endsWith;
+    }
+
+    defineProperties(Array, {
+      from: function(iterable) {
+        var mapFn = arguments.length > 1 ? arguments[1] : undefined;
+        var thisArg = arguments.length > 2 ? arguments[2] : undefined;
+
+        var list = ES.ToObject(iterable, 'bad iterable');
+        if (mapFn !== undefined && !ES.IsCallable(mapFn)) {
+          throw new TypeError('Array.from: when provided, the second argument must be a function');
+        }
+
+        var usingIterator = ES.IsIterable(list);
+        // does the spec really mean that Arrays should use ArrayIterator?
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2416
+        //if (Array.isArray(list)) { usingIterator=false; }
+        var length = usingIterator ? 0 : ES.ToLength(list.length);
+        var result = ES.IsCallable(this) ? Object(usingIterator ? new this() : new this(length)) : new Array(length);
+        var it = usingIterator ? ES.GetIterator(list) : null;
+        var value;
+
+        for (var i = 0; usingIterator || (i < length); i++) {
+          if (usingIterator) {
+            value = ES.IteratorNext(it);
+            if (value.done) {
+              length = i;
+              break;
+            }
+            value = value.value;
+          } else {
+            value = list[i];
+          }
+          if (mapFn !== undefined) {
+            result[i] = thisArg ? mapFn.call(thisArg, value) : mapFn(value);
+          } else {
+            result[i] = value;
+          }
+        }
+
+        result.length = length;
+        return result;
+      },
+
+      of: function() {
+        return Array.from(arguments);
+      }
+    });
+
+    defineProperties(globals, {
+      ArrayIterator: function(array, kind) {
+        this.i = 0;
+        this.array = array;
+        this.kind = kind;
+      }
+    });
+
+    defineProperties(ArrayIterator.prototype, {
+      next: function() {
+        var i = this.i, array = this.array;
+        if (i===undefined || this.kind===undefined) {
+          throw new TypeError('Not an ArrayIterator');
+        }
+        if (array!==undefined) {
+          var len = ES.ToLength(array.length);
+          for (; i < len; i++) {
+            var kind = this.kind;
+            var retval;
+            if (kind === "key") {
+              retval = i;
+            }
+            if (kind === "value") {
+              retval = array[i];
+            }
+            if (kind === "entry") {
+              retval = [i, array[i]];
+            }
+            this.i = i + 1;
+            return { value: retval, done: false };
+          }
+        }
+        this.array = undefined;
+        return { value: undefined, done: true };
+      }
+    });
+    addIterator(ArrayIterator.prototype);
+
+    defineProperties(Array.prototype, {
+      copyWithin: function(target, start) {
+        var end = arguments[2]; // copyWithin.length must be 2
+        var o = ES.ToObject(this);
+        var len = ES.ToLength(o.length);
+        target = ES.ToInteger(target);
+        start = ES.ToInteger(start);
+        var to = target < 0 ? Math.max(len + target, 0) : Math.min(target, len);
+        var from = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+        end = (end===undefined) ? len : ES.ToInteger(end);
+        var fin = end < 0 ? Math.max(len + end, 0) : Math.min(end, len);
+        var count = Math.min(fin - from, len - to);
+        var direction = 1;
+        if (from < to && to < (from + count)) {
+          direction = -1;
+          from += count - 1;
+          to += count - 1;
+        }
+        while (count > 0) {
+          if (_hasOwnProperty.call(o, from)) {
+            o[to] = o[from];
+          } else {
+            delete o[from];
+          }
+          from += direction;
+          to += direction;
+          count -= 1;
+        }
+        return o;
+      },
+      fill: function(value) {
+        var start = arguments[1], end = arguments[2]; // fill.length===1
+        var O = ES.ToObject(this);
+        var len = ES.ToLength(O.length);
+        start = ES.ToInteger(start===undefined ? 0 : start);
+        end = ES.ToInteger(end===undefined ? len : end);
+
+        var relativeStart = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+
+        for (var i = relativeStart; i < len && i < end; ++i) {
+          O[i] = value;
+        }
+        return O;
+      },
+
+      find: function(predicate) {
+        var list = ES.ToObject(this);
+        var length = ES.ToLength(list.length);
+        if (!ES.IsCallable(predicate)) {
+          throw new TypeError('Array#find: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0, value; i < length; i++) {
+          if (i in list) {
+            value = list[i];
+            if (predicate.call(thisArg, value, i, list)) return value;
+          }
+        }
+        return undefined;
+      },
+
+      findIndex: function(predicate) {
+        var list = ES.ToObject(this);
+        var length = ES.ToLength(list.length);
+        if (!ES.IsCallable(predicate)) {
+          throw new TypeError('Array#findIndex: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0; i < length; i++) {
+          if (i in list) {
+            if (predicate.call(thisArg, list[i], i, list)) return i;
+          }
+        }
+        return -1;
+      },
+
+      keys: function() {
+        return new ArrayIterator(this, "key");
+      },
+
+      values: function() {
+        return new ArrayIterator(this, "value");
+      },
+
+      entries: function() {
+        return new ArrayIterator(this, "entry");
+      }
+    });
+    addIterator(Array.prototype, function() { return this.values(); });
+    // Chrome defines keys/values/entries on Array, but doesn't give us
+    // any way to identify its iterator.  So add our own shimmed field.
+    addIterator(Object.getPrototypeOf([].values()));
+
+    var maxSafeInteger = Math.pow(2, 53) - 1;
+    defineProperties(Number, {
+      MAX_SAFE_INTEGER: maxSafeInteger,
+      MIN_SAFE_INTEGER: -maxSafeInteger,
+      EPSILON: 2.220446049250313e-16,
+
+      parseInt: globals.parseInt,
+      parseFloat: globals.parseFloat,
+
+      isFinite: function(value) {
+        return typeof value === 'number' && global_isFinite(value);
+      },
+
+      isInteger: function(value) {
+        return typeof value === 'number' &&
+          !Number.isNaN(value) &&
+          Number.isFinite(value) &&
+          ES.ToInteger(value) === value;
+      },
+
+      isSafeInteger: function(value) {
+        return Number.isInteger(value) &&
+          Math.abs(value) <= Number.MAX_SAFE_INTEGER;
+      },
+
+      isNaN: function(value) {
+        // NaN !== NaN, but they are identical.
+        // NaNs are the only non-reflexive value, i.e., if x !== x,
+        // then x is NaN.
+        // isNaN is broken: it converts its argument to number, so
+        // isNaN('foo') => true
+        return value !== value;
+      }
+
+    });
+
+    defineProperties(Number.prototype, {
+    });
+
+    if (supportsDescriptors) {
+      defineProperties(Object, {
+        getOwnPropertyDescriptors: function(subject) {
+          var descs = {};
+          Object.getOwnPropertyNames(subject).forEach(function(propName) {
+            descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+          });
+          return descs;
+        },
+
+        getPropertyDescriptor: function(subject, name) {
+          var pd = Object.getOwnPropertyDescriptor(subject, name);
+          var proto = Object.getPrototypeOf(subject);
+          while (pd === undefined && proto !== null) {
+            pd = Object.getOwnPropertyDescriptor(proto, name);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return pd;
+        },
+
+        getPropertyNames: function(subject) {
+          var result = Object.getOwnPropertyNames(subject);
+          var proto = Object.getPrototypeOf(subject);
+
+          var addProperty = function(property) {
+            if (result.indexOf(property) === -1) {
+              result.push(property);
+            }
+          };
+
+          while (proto !== null) {
+            Object.getOwnPropertyNames(proto).forEach(addProperty);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return result;
+        },
+
+        // 19.1.3.1
+        assign: function(target, source) {
+          return Object.keys(source).reduce(function(target, key) {
+            target[key] = source[key];
+            return target;
+          }, target);
+        }
+      });
+
+      // 19.1.3.9
+      // shim from https://gist.github.com/WebReflection/5593554
+      defineProperties(Object, {
+        setPrototypeOf: (function(Object, magic) {
+          var set;
+
+          var checkArgs = function(O, proto) {
+            if (!ES.TypeIsObject(O)) {
+              throw new TypeError('cannot set prototype on a non-object');
+            }
+            if (!(proto===null || ES.TypeIsObject(proto))) {
+              throw new TypeError('can only set prototype to an object or null'+proto);
+            }
+          };
+
+          var setPrototypeOf = function(O, proto) {
+            checkArgs(O, proto);
+            set.call(O, proto);
+            return O;
+          };
+
+          try {
+            // this works already in Firefox and Safari
+            set = Object.getOwnPropertyDescriptor(Object.prototype, magic).set;
+            set.call({}, null);
+          } catch (e) {
+            if (Object.prototype !== {}[magic]) {
+              // IE < 11 cannot be shimmed
+              return;
+            }
+            // probably Chrome or some old Mobile stock browser
+            set = function(proto) {
+              this[magic] = proto;
+            };
+            // please note that this will **not** work
+            // in those browsers that do not inherit
+            // __proto__ by mistake from Object.prototype
+            // in these cases we should probably throw an error
+            // or at least be informed about the issue
+            setPrototypeOf.polyfill = setPrototypeOf(
+              setPrototypeOf({}, null),
+              Object.prototype
+            ) instanceof Object;
+            // setPrototypeOf.polyfill === true means it works as meant
+            // setPrototypeOf.polyfill === false means it's not 100% reliable
+            // setPrototypeOf.polyfill === undefined
+            // or
+            // setPrototypeOf.polyfill ==  null means it's not a polyfill
+            // which means it works as expected
+            // we can even delete Object.prototype.__proto__;
+          }
+          return setPrototypeOf;
+        })(Object, '__proto__')
+      });
+    }
+
+    // Workaround bug in Opera 12 where setPrototypeOf(x, null) doesn't work,
+    // but Object.create(null) does.
+    if (Object.setPrototypeOf && Object.getPrototypeOf &&
+        Object.getPrototypeOf(Object.setPrototypeOf({}, null)) !== null &&
+        Object.getPrototypeOf(Object.create(null)) === null) {
+      (function() {
+        var FAKENULL = Object.create(null);
+        var gpo = Object.getPrototypeOf, spo = Object.setPrototypeOf;
+        Object.getPrototypeOf = function(o) {
+          var result = gpo(o);
+          return result === FAKENULL ? null : result;
+        };
+        Object.setPrototypeOf = function(o, p) {
+          if (p === null) { p = FAKENULL; }
+          return spo(o, p);
+        };
+        Object.setPrototypeOf.polyfill = false;
+      })();
+    }
+
+    defineProperties(Object, {
+      getOwnPropertyKeys: function(subject) {
+        return Object.keys(subject);
+      },
+
+      is: function(a, b) {
+        return ES.SameValue(a, b);
+      }
+    });
+
+    try {
+      Object.keys('foo');
+    } catch (e) {
+      var originalObjectKeys = Object.keys;
+      Object.keys = function (obj) {
+        return originalObjectKeys(ES.ToObject(obj));
+      };
+    }
+
+    var MathShims = {
+      acosh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < 1) return NaN;
+        if (value === 1) return 0;
+        if (value === Infinity) return value;
+        return Math.log(value + Math.sqrt(value * value - 1));
+      },
+
+      asinh: function(value) {
+        value = Number(value);
+        if (value === 0 || !global_isFinite(value)) {
+          return value;
+        }
+        return value < 0 ? -Math.asinh(-value) : Math.log(value + Math.sqrt(value * value + 1));
+      },
+
+      atanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < -1 || value > 1) {
+          return NaN;
+        }
+        if (value === -1) return -Infinity;
+        if (value === 1) return Infinity;
+        if (value === 0) return value;
+        return 0.5 * Math.log((1 + value) / (1 - value));
+      },
+
+      cbrt: function(value) {
+        value = Number(value);
+        if (value === 0) return value;
+        var negate = value < 0, result;
+        if (negate) value = -value;
+        result = Math.pow(value, 1/3);
+        return negate ? -result : result;
+      },
+
+      clz32: function(value) {
+        // See https://bugs.ecmascript.org/show_bug.cgi?id=2465
+        value = Number(value);
+        if (Number.isNaN(value)) return NaN;
+        var number = ES.ToUint32(value);
+        if (number === 0) {
+          return 32;
+        }
+        return 32 - (number).toString(2).length;
+      },
+
+      cosh: function(value) {
+        value = Number(value);
+        if (value === 0) return 1; // +0 or -0
+        if (Number.isNaN(value)) return NaN;
+        if (!global_isFinite(value)) return Infinity;
+        if (value < 0) value = -value;
+        if (value > 21) return Math.exp(value) / 2;
+        return (Math.exp(value) + Math.exp(-value)) / 2;
+      },
+
+      expm1: function(value) {
+        value = Number(value);
+        if (value === -Infinity) return -1;
+        if (!global_isFinite(value) || value === 0) return value;
+        var result = 0;
+        var n = 50;
+        for (var i = 1; i < n; i++) {
+          for (var j = 2, factorial = 1; j <= i; j++) {
+            factorial *= j;
+          }
+          result += Math.pow(value, i) / factorial;
+        }
+        return result;
+      },
+
+      hypot: function(x, y) {
+        var anyNaN = false;
+        var allZero = true;
+        var anyInfinity = false;
+        var numbers = [];
+        Array.prototype.every.call(arguments, function(arg) {
+          var num = Number(arg);
+          if (Number.isNaN(num)) anyNaN = true;
+          else if (num === Infinity || num === -Infinity) anyInfinity = true;
+          else if (num !== 0) allZero = false;
+          if (anyInfinity) {
+            return false;
+          } else if (!anyNaN) {
+            numbers.push(Math.abs(num));
+          }
+          return true;
+        });
+        if (anyInfinity) return Infinity;
+        if (anyNaN) return NaN;
+        if (allZero) return 0;
+
+        numbers.sort(function (a, b) { return b - a; });
+        var largest = numbers[0];
+        var divided = numbers.map(function (number) { return number / largest; });
+        var sum = divided.reduce(function (sum, number) { return sum += number * number; }, 0);
+        return largest * Math.sqrt(sum);
+      },
+
+      log2: function(value) {
+        return Math.log(value) * Math.LOG2E;
+      },
+
+      log10: function(value) {
+        return Math.log(value) * Math.LOG10E;
+      },
+
+      log1p: function(value) {
+        value = Number(value);
+        if (value < -1 || Number.isNaN(value)) return NaN;
+        if (value === 0 || value === Infinity) return value;
+        if (value === -1) return -Infinity;
+        var result = 0;
+        var n = 50;
+
+        if (value < 0 || value > 1) return Math.log(1 + value);
+        for (var i = 1; i < n; i++) {
+          if ((i % 2) === 0) {
+            result -= Math.pow(value, i) / i;
+          } else {
+            result += Math.pow(value, i) / i;
+          }
+        }
+
+        return result;
+      },
+
+      sign: function(value) {
+        var number = +value;
+        if (number === 0) return number;
+        if (Number.isNaN(number)) return number;
+        return number < 0 ? -1 : 1;
+      },
+
+      sinh: function(value) {
+        value = Number(value);
+        if (!global_isFinite(value) || value === 0) return value;
+        return (Math.exp(value) - Math.exp(-value)) / 2;
+      },
+
+      tanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value === 0) return value;
+        if (value === Infinity) return 1;
+        if (value === -Infinity) return -1;
+        return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+      },
+
+      trunc: function(value) {
+        var number = Number(value);
+        return number < 0 ? -Math.floor(-number) : Math.floor(number);
+      },
+
+      imul: function(x, y) {
+        // taken from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
+        var ah  = (x >>> 16) & 0xffff;
+        var al = x & 0xffff;
+        var bh  = (y >>> 16) & 0xffff;
+        var bl = y & 0xffff;
+        // the shift by 0 fixes the sign on the high part
+        // the final |0 converts the unsigned value into a signed value
+        return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);
+      },
+
+      fround: function(x) {
+        if (x === 0 || x === Infinity || x === -Infinity || Number.isNaN(x)) {
+          return x;
+        }
+        var num = Number(x);
+        return numberConversion.toFloat32(num);
+      }
+    };
+    defineProperties(Math, MathShims);
+
+    if (Math.imul(0xffffffff, 5) !== -5) {
+      // Safari 6.1, at least, reports "0" for this value
+      Math.imul = MathShims.imul;
+    }
+
+    // Promises
+    // Simplest possible implementation; use a 3rd-party library if you
+    // want the best possible speed and/or long stack traces.
+    var PromiseShim = (function() {
+
+      var Promise, Promise$prototype;
+
+      ES.IsPromise = function(promise) {
+        if (!ES.TypeIsObject(promise)) {
+          return false;
+        }
+        if (!promise._promiseConstructor) {
+          // _promiseConstructor is a bit more unique than _status, so we'll
+          // check that instead of the [[PromiseStatus]] internal field.
+          return false;
+        }
+        if (promise._status === undefined) {
+          return false; // uninitialized
+        }
+        return true;
+      };
+
+      // "PromiseCapability" in the spec is what most promise implementations
+      // call a "deferred".
+      var PromiseCapability = function(C) {
+        if (!ES.IsCallable(C)) {
+          throw new TypeError('bad promise constructor');
+        }
+        var capability = this;
+        var resolver = function(resolve, reject) {
+          capability.resolve = resolve;
+          capability.reject = reject;
+        };
+        capability.promise = ES.Construct(C, [resolver]);
+        if (!(ES.IsCallable(capability.resolve) &&
+              ES.IsCallable(capability.reject))) {
+          throw new TypeError('bad promise constructor');
+        }
+      };
+
+      // find an appropriate setImmediate-alike
+      var setTimeout = globals.setTimeout;
+      var makeZeroTimeout = function() {
+        // from http://dbaron.org/log/20100309-faster-timeouts
+        var timeouts = [];
+        var messageName = "zero-timeout-message";
+        var setZeroTimeout = function(fn) {
+          timeouts.push(fn);
+          window.postMessage(messageName, "*");
+        };
+        var handleMessage = function(event) {
+          if (event.source == window && event.data == messageName) {
+            event.stopPropagation();
+            if (timeouts.length === 0) { return; }
+            var fn = timeouts.shift();
+            fn();
+          }
+        };
+        window.addEventListener("message", handleMessage, true);
+        return setZeroTimeout;
+      };
+      var enqueue = ES.IsCallable(globals.setImmediate) ?
+        globals.setImmediate.bind(globals) :
+        typeof process === 'object' && process.nextTick ? process.nextTick :
+        ES.IsCallable(window.postMessage) ? makeZeroTimeout() :
+        function(task) { setTimeout(task, 0); }; // fallback
+
+      var triggerPromiseReactions = function(reactions, x) {
+        reactions.forEach(function(reaction) {
+          enqueue(function() {
+            // PromiseReactionTask
+            var handler = reaction.handler;
+            var capability = reaction.capability;
+            var resolve = capability.resolve;
+            var reject = capability.reject;
+            try {
+              var result = handler(x);
+              if (result === capability.promise) {
+                throw new TypeError('self resolution');
+              }
+              var updateResult =
+                updatePromiseFromPotentialThenable(result, capability);
+              if (!updateResult) {
+                resolve(result);
+              }
+            } catch (e) {
+              reject(e);
+            }
+          });
+        });
+      };
+
+      var updatePromiseFromPotentialThenable = function(x, capability) {
+        if (!ES.TypeIsObject(x)) {
+          return false;
+        }
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          var then = x.then; // only one invocation of accessor
+          if (!ES.IsCallable(then)) { return false; }
+          then.call(x, resolve, reject);
+        } catch(e) {
+          reject(e);
+        }
+        return true;
+      };
+
+      var promiseResolutionHandler = function(promise, onFulfilled, onRejected){
+        return function(x) {
+          if (x === promise) {
+            return onRejected(new TypeError('self resolution'));
+          }
+          var C = promise._promiseConstructor;
+          var capability = new PromiseCapability(C);
+          var updateResult = updatePromiseFromPotentialThenable(x, capability);
+          if (updateResult) {
+            return capability.promise.then(onFulfilled, onRejected);
+          } else {
+            return onFulfilled(x);
+          }
+        };
+      };
+
+      Promise = function(resolver) {
+        var promise = this;
+        promise = emulateES6construct(promise);
+        if (!promise._promiseConstructor) {
+          // we use _promiseConstructor as a stand-in for the internal
+          // [[PromiseStatus]] field; it's a little more unique.
+          throw new TypeError('bad promise');
+        }
+        if (promise._status !== undefined) {
+          throw new TypeError('promise already initialized');
+        }
+        // see https://bugs.ecmascript.org/show_bug.cgi?id=2482
+        if (!ES.IsCallable(resolver)) {
+          throw new TypeError('not a valid resolver');
+        }
+        promise._status = 'unresolved';
+        promise._resolveReactions = [];
+        promise._rejectReactions = [];
+
+        var resolve = function(resolution) {
+          if (promise._status !== 'unresolved') { return; }
+          var reactions = promise._resolveReactions;
+          promise._result = resolution;
+          promise._resolveReactions = undefined;
+          promise._rejectReactions = undefined;
+          promise._status = 'has-resolution';
+          triggerPromiseReactions(reactions, resolution);
+        };
+        var reject = function(reason) {
+          if (promise._status !== 'unresolved') { return; }
+          var reactions = promise._rejectReactions;
+          promise._result = reason;
+          promise._resolveReactions = undefined;
+          promise._rejectReactions = undefined;
+          promise._status = 'has-rejection';
+          triggerPromiseReactions(reactions, reason);
+        };
+        try {
+          resolver(resolve, reject);
+        } catch (e) {
+          reject(e);
+        }
+        return promise;
+      };
+      Promise$prototype = Promise.prototype;
+      defineProperties(Promise, {
+        '@@create': function(obj) {
+          var constructor = this;
+          // AllocatePromise
+          // The `obj` parameter is a hack we use for es5
+          // compatibility.
+          var prototype = constructor.prototype || Promise$prototype;
+          obj = obj || Object.create(prototype);
+          defineProperties(obj, {
+            _status: undefined,
+            _result: undefined,
+            _resolveReactions: undefined,
+            _rejectReactions: undefined,
+            _promiseConstructor: undefined
+          });
+          obj._promiseConstructor = constructor;
+          return obj;
+        }
+      });
+
+      var _promiseAllResolver = function(index, values, capability, remaining) {
+        var done = false;
+        return function(x) {
+          if (done) { return; } // protect against being called multiple times
+          done = true;
+          values[index] = x;
+          if ((--remaining.count) === 0) {
+            var resolve = capability.resolve;
+            resolve(values); // call w/ this===undefined
+          }
+        };
+      };
+
+      Promise.all = function(iterable) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          if (!ES.IsIterable(iterable)) {
+            throw new TypeError('bad iterable');
+          }
+          var it = ES.GetIterator(iterable);
+          var values = [], remaining = { count: 1 };
+          for (var index = 0; ; index++) {
+            var next = ES.IteratorNext(it);
+            if (next.done) {
+              break;
+            }
+            var nextPromise = C.resolve(next.value);
+            var resolveElement = _promiseAllResolver(
+              index, values, capability, remaining
+            );
+            remaining.count++;
+            nextPromise.then(resolveElement, capability.reject);
+          }
+          if ((--remaining.count) === 0) {
+            resolve(values); // call w/ this===undefined
+          }
+        } catch (e) {
+          reject(e);
+        }
+        return capability.promise;
+      };
+
+      Promise.race = function(iterable) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          if (!ES.IsIterable(iterable)) {
+            throw new TypeError('bad iterable');
+          }
+          var it = ES.GetIterator(iterable);
+          while (true) {
+            var next = ES.IteratorNext(it);
+            if (next.done) {
+              // If iterable has no items, resulting promise will never
+              // resolve; see:
+              // https://github.com/domenic/promises-unwrapping/issues/75
+              // https://bugs.ecmascript.org/show_bug.cgi?id=2515
+              break;
+            }
+            var nextPromise = C.resolve(next.value);
+            nextPromise.then(resolve, reject);
+          }
+        } catch (e) {
+          reject(e);
+        }
+        return capability.promise;
+      };
+
+      Promise.reject = function(reason) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var reject = capability.reject;
+        reject(reason); // call with this===undefined
+        return capability.promise;
+      };
+
+      Promise.resolve = function(v) {
+        var C = this;
+        if (ES.IsPromise(v)) {
+          var constructor = v._promiseConstructor;
+          if (constructor === C) { return v; }
+        }
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        resolve(v); // call with this===undefined
+        return capability.promise;
+      };
+
+      Promise.prototype['catch'] = function( onRejected ) {
+        return this.then(undefined, onRejected);
+      };
+
+      Promise.prototype.then = function( onFulfilled, onRejected ) {
+        var promise = this;
+        if (!ES.IsPromise(promise)) { throw new TypeError('not a promise'); }
+        // this.constructor not this._promiseConstructor; see
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2513
+        var C = this.constructor;
+        var capability = new PromiseCapability(C);
+        if (!ES.IsCallable(onRejected)) {
+          onRejected = function(e) { throw e; };
+        }
+        if (!ES.IsCallable(onFulfilled)) {
+          onFulfilled = function(x) { return x; };
+        }
+        var resolutionHandler =
+          promiseResolutionHandler(promise, onFulfilled, onRejected);
+        var resolveReaction =
+          { capability: capability, handler: resolutionHandler };
+        var rejectReaction =
+          { capability: capability, handler: onRejected };
+        switch (promise._status) {
+        case 'unresolved':
+          promise._resolveReactions.push(resolveReaction);
+          promise._rejectReactions.push(rejectReaction);
+          break;
+        case 'has-resolution':
+          triggerPromiseReactions([resolveReaction], promise._result);
+          break;
+        case 'has-rejection':
+          triggerPromiseReactions([rejectReaction], promise._result);
+          break;
+        default:
+          throw new TypeError('unexpected');
+        }
+        return capability.promise;
+      };
+
+      return Promise;
+    })();
+    // export the Promise constructor.
+    defineProperties(globals, { Promise: PromiseShim });
+    // In Chrome 33 (and thereabouts) Promise is defined, but the
+    // implementation is buggy in a number of ways.  Let's check subclassing
+    // support to see if we have a buggy implementation.
+    if (!supportsSubclassing(globals.Promise, function(S) {
+      return S.resolve(42) instanceof S;
+    })) {
+      globals.Promise = PromiseShim;
+    }
+
+    // Map and Set require a true ES5 environment
+    if (supportsDescriptors) {
+
+      var fastkey = function fastkey(key) {
+        var type = typeof key;
+        if (type === 'string') {
+          return '$' + key;
+        } else if (type === 'number') {
+          // note that -0 will get coerced to "0" when used as a property key
+          return key;
+        }
+        return null;
+      };
+
+      var emptyObject = function emptyObject() {
+        // accomodate some older not-quite-ES5 browsers
+        return Object.create ? Object.create(null) : {};
+      };
+
+      var collectionShims = {
+        Map: (function() {
+
+          var empty = {};
+
+          function MapEntry(key, value) {
+            this.key = key;
+            this.value = value;
+            this.next = null;
+            this.prev = null;
+          }
+
+          MapEntry.prototype.isRemoved = function() {
+            return this.key === empty;
+          };
+
+          function MapIterator(map, kind) {
+            this.head = map._head;
+            this.i = this.head;
+            this.kind = kind;
+          }
+
+          MapIterator.prototype = {
+            next: function() {
+              var i = this.i, kind = this.kind, head = this.head, result;
+              if (this.i === undefined) {
+                return { value: undefined, done: true };
+              }
+              while (i.isRemoved() && i !== head) {
+                // back up off of removed entries
+                i = i.prev;
+              }
+              // advance to next unreturned element.
+              while (i.next !== head) {
+                i = i.next;
+                if (!i.isRemoved()) {
+                  if (kind === "key") {
+                    result = i.key;
+                  } else if (kind === "value") {
+                    result = i.value;
+                  } else {
+                    result = [i.key, i.value];
+                  }
+                  this.i = i;
+                  return { value: result, done: false };
+                }
+              }
+              // once the iterator is done, it is done forever.
+              this.i = undefined;
+              return { value: undefined, done: true };
+            }
+          };
+          addIterator(MapIterator.prototype);
+
+          function Map() {
+            var map = this;
+            map = emulateES6construct(map);
+            if (!map._es6map) {
+              throw new TypeError('bad map');
+            }
+
+            var head = new MapEntry(null, null);
+            // circular doubly-linked list.
+            head.next = head.prev = head;
+
+            defineProperties(map, {
+              '_head': head,
+              '_storage': emptyObject(),
+              '_size': 0
+            });
+
+            // Optionally initialize map from iterable
+            var iterable = arguments[0];
+            if (iterable !== undefined && iterable !== null) {
+              var it = ES.GetIterator(iterable);
+              var adder = map.set;
+              if (!ES.IsCallable(adder)) { throw new TypeError('bad map'); }
+              while (true) {
+                var next = ES.IteratorNext(it);
+                if (next.done) { break; }
+                var nextItem = next.value;
+                if (!ES.TypeIsObject(nextItem)) {
+                  throw new TypeError('expected iterable of pairs');
+                }
+                adder.call(map, nextItem[0], nextItem[1]);
+              }
+            }
+            return map;
+          }
+          var Map$prototype = Map.prototype;
+          defineProperties(Map, {
+            '@@create': function(obj) {
+              var constructor = this;
+              var prototype = constructor.prototype || Map$prototype;
+              obj = obj || Object.create(prototype);
+              defineProperties(obj, { _es6map: true });
+              return obj;
+            }
+          });
+
+          Object.defineProperty(Map.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._size === 'undefined') {
+                throw new TypeError('size method called on incompatible Map');
+              }
+              return this._size;
+            }
+          });
+
+          defineProperties(Map.prototype, {
+            get: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                var entry = this._storage[fkey];
+                return entry ? entry.value : undefined;
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return i.value;
+                }
+              }
+              return undefined;
+            },
+
+            has: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                return typeof this._storage[fkey] !== 'undefined';
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            set: function(key, value) {
+              var head = this._head, i = head, entry;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] !== 'undefined') {
+                  this._storage[fkey].value = value;
+                  return;
+                } else {
+                  entry = this._storage[fkey] = new MapEntry(key, value);
+                  i = head.prev;
+                  // fall through
+                }
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.value = value;
+                  return;
+                }
+              }
+              entry = entry || new MapEntry(key, value);
+              if (ES.SameValue(-0, key)) {
+                entry.key = +0; // coerce -0 to +0 in entry
+              }
+              entry.next = this._head;
+              entry.prev = this._head.prev;
+              entry.prev.next = entry;
+              entry.next.prev = entry;
+              this._size += 1;
+            },
+
+            'delete': function(key) {
+              var head = this._head, i = head;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] === 'undefined') {
+                  return false;
+                }
+                i = this._storage[fkey].prev;
+                delete this._storage[fkey];
+                // fall through
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.key = i.value = empty;
+                  i.prev.next = i.next;
+                  i.next.prev = i.prev;
+                  this._size -= 1;
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            clear: function() {
+              this._size = 0;
+              this._storage = emptyObject();
+              var head = this._head, i = head, p = i.next;
+              while ((i = p) !== head) {
+                i.key = i.value = empty;
+                p = i.next;
+                i.next = i.prev = head;
+              }
+              head.next = head.prev = head;
+            },
+
+            keys: function() {
+              return new MapIterator(this, "key");
+            },
+
+            values: function() {
+              return new MapIterator(this, "value");
+            },
+
+            entries: function() {
+              return new MapIterator(this, "key+value");
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var it = this.entries();
+              for (var entry = it.next(); !entry.done; entry = it.next()) {
+                callback.call(context, entry.value[1], entry.value[0], this);
+              }
+            }
+          });
+          addIterator(Map.prototype, function() { return this.entries(); });
+
+          return Map;
+        })(),
+
+        Set: (function() {
+          // Creating a Map is expensive.  To speed up the common case of
+          // Sets containing only string or numeric keys, we use an object
+          // as backing storage and lazily create a full Map only when
+          // required.
+          var SetShim = function Set() {
+            var set = this;
+            set = emulateES6construct(set);
+            if (!set._es6set) {
+              throw new TypeError('bad set');
+            }
+
+            defineProperties(set, {
+              '[[SetData]]': null,
+              '_storage': emptyObject()
+            });
+
+            // Optionally initialize map from iterable
+            var iterable = arguments[0];
+            if (iterable !== undefined && iterable !== null) {
+              var it = ES.GetIterator(iterable);
+              var adder = set.add;
+              if (!ES.IsCallable(adder)) { throw new TypeError('bad set'); }
+              while (true) {
+                var next = ES.IteratorNext(it);
+                if (next.done) { break; }
+                var nextItem = next.value;
+                adder.call(set, nextItem);
+              }
+            }
+            return set;
+          };
+          var Set$prototype = SetShim.prototype;
+          defineProperties(SetShim, {
+            '@@create': function(obj) {
+              var constructor = this;
+              var prototype = constructor.prototype || Set$prototype;
+              obj = obj || Object.create(prototype);
+              defineProperties(obj, { _es6set: true });
+              return obj;
+            }
+          });
+
+          // Switch from the object backing storage to a full Map.
+          var ensureMap = function ensureMap(set) {
+            if (!set['[[SetData]]']) {
+              var m = set['[[SetData]]'] = new collectionShims.Map();
+              Object.keys(set._storage).forEach(function(k) {
+                // fast check for leading '$'
+                if (k.charCodeAt(0) === 36) {
+                  k = k.substring(1);
+                } else {
+                  k = +k;
+                }
+                m.set(k, k);
+              });
+              set._storage = null; // free old backing storage
+            }
+          };
+
+          Object.defineProperty(SetShim.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._storage === 'undefined') {
+                // https://github.com/paulmillr/es6-shim/issues/176
+                throw new TypeError('size method called on incompatible Set');
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].size;
+            }
+          });
+
+          defineProperties(SetShim.prototype, {
+            has: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                return !!this._storage[fkey];
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].has(key);
+            },
+
+            add: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                this._storage[fkey]=true;
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].set(key, key);
+            },
+
+            'delete': function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                delete this._storage[fkey];
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]']['delete'](key);
+            },
+
+            clear: function() {
+              if (this._storage) {
+                this._storage = emptyObject();
+                return;
+              }
+              return this['[[SetData]]'].clear();
+            },
+
+            keys: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].keys();
+            },
+
+            values: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].values();
+            },
+
+            entries: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].entries();
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var entireSet = this;
+              ensureMap(this);
+              this['[[SetData]]'].forEach(function(value, key) {
+                callback.call(context, key, key, entireSet);
+              });
+            }
+          });
+          addIterator(SetShim.prototype, function() { return this.values(); });
+
+          return SetShim;
+        })()
+      };
+      defineProperties(globals, collectionShims);
+
+      if (globals.Map || globals.Set) {
+        /*
+          - In Firefox < 23, Map#size is a function.
+          - In all current Firefox, Set#entries/keys/values & Map#clear do not exist
+          - https://bugzilla.mozilla.org/show_bug.cgi?id=869996
+          - In Firefox 24, Map and Set do not implement forEach
+          - In Firefox 25 at least, Map and Set are callable without "new"
+        */
+        if (
+          typeof globals.Map.prototype.clear !== 'function' ||
+          new globals.Set().size !== 0 ||
+          new globals.Map().size !== 0 ||
+          typeof globals.Set.prototype.keys !== 'function' ||
+          typeof globals.Map.prototype.forEach !== 'function' ||
+          typeof globals.Set.prototype.forEach !== 'function' ||
+          isCallableWithoutNew(globals.Map) ||
+          isCallableWithoutNew(globals.Set) ||
+          !supportsSubclassing(globals.Map, function(M) {
+            return (new M([])) instanceof M;
+          })
+        ) {
+          globals.Map = collectionShims.Map;
+          globals.Set = collectionShims.Set;
+        }
+      }
+      // Shim incomplete iterator implementations.
+      addIterator(Object.getPrototypeOf((new globals.Map()).keys()));
+      addIterator(Object.getPrototypeOf((new globals.Set()).keys()));
+    }
+  };
+
+  if (typeof define === 'function' && typeof define.amd === 'object' && define.amd) {
+    define(main); // RequireJS
+  } else {
+    main(); // CommonJS and <script>
+  }
+})();
diff --git a/ajax/libs/es6-shim/0.10.0/es6-shim.min.js b/ajax/libs/es6-shim/0.10.0/es6-shim.min.js
new file mode 100644
index 000000000..5ec1df907
--- /dev/null
+++ b/ajax/libs/es6-shim/0.10.0/es6-shim.min.js
@@ -0,0 +1 @@
+!function(t){"use strict";var e=function(t){try{t()}catch(e){return!1}return!0},r=function(t,e){try{var r=function(){t.apply(this,arguments)};return r.__proto__?(Object.setPrototypeOf(r,t),r.prototype=Object.create(t.prototype,{constructor:{value:t}}),e(r)):!1}catch(n){return!1}},n=function(){try{return Object.defineProperty({},"x",{}),!0}catch(t){return!1}},o=function(){var t=!1;if(String.prototype.startsWith)try{"/a/".startsWith(/a/)}catch(e){t=!0}return t},a=function(){var a="undefined"==typeof global?window:global,i=a.isFinite,u=!!Object.defineProperty&&n(),s=o(),c=Array.prototype.slice,f=String.prototype.indexOf,l=Object.prototype.toString,h=Object.prototype.hasOwnProperty,p=function(t,e){Object.keys(e).forEach(function(r){var n=e[r];r in t||(u?Object.defineProperty(t,r,{configurable:!0,enumerable:!1,writable:!0,value:n}):t[r]=n)})},v="object"==typeof Symbol&&Symbol.iterator||"_es6shim_iterator_";a.Set&&"function"==typeof(new a.Set)["@@iterator"]&&(v="@@iterator");var y=function(t,e){e||(e=function(){return this});var r={};r[v]=e,p(t,r)},b=function(t){var e=l.call(t),r="[object Arguments]"===e;return r||(r="[object Array]"!==e&&null!==t&&"object"==typeof t&&"number"==typeof t.length&&t.length>=0&&"[object Function]"===l.call(t.callee)),r},g=function(t){if(!m.TypeIsObject(t))throw new TypeError("bad object");return t._es6construct||(t.constructor&&m.IsCallable(t.constructor["@@create"])&&(t=t.constructor["@@create"](t)),p(t,{_es6construct:!0})),t},m={CheckObjectCoercible:function(t,e){if(null==t)throw new TypeError(e||"Cannot call method on "+t);return t},TypeIsObject:function(t){return null!=t&&Object(t)===t},ToObject:function(t,e){return Object(m.CheckObjectCoercible(t,e))},IsCallable:function(t){return"function"==typeof t&&"[object Function]"===l.call(t)},ToInt32:function(t){return t>>0},ToUint32:function(t){return t>>>0},ToInteger:function(t){var e=+t;return 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diff --git a/ajax/libs/es6-shim/0.10.1/es6-shim.js b/ajax/libs/es6-shim/0.10.1/es6-shim.js
new file mode 100644
index 000000000..d32749973
--- /dev/null
+++ b/ajax/libs/es6-shim/0.10.1/es6-shim.js
@@ -0,0 +1,1833 @@
+// ES6-shim 0.10.1 (c) 2013-2014 Paul Miller (http://paulmillr.com)
+// ES6-shim may be freely distributed under the MIT license.
+// For more details and documentation:
+// https://github.com/paulmillr/es6-shim/
+
+(function(undefined) {
+  'use strict';
+
+  var isCallableWithoutNew = function(func) {
+    try { func(); }
+    catch (e) { return false; }
+    return true;
+  };
+
+  var supportsSubclassing = function(C, f) {
+    /* jshint proto:true */
+    try {
+      var Sub = function() { C.apply(this, arguments); };
+      if (!Sub.__proto__) { return false; /* skip test on IE < 11 */ }
+      Object.setPrototypeOf(Sub, C);
+      Sub.prototype = Object.create(C.prototype, {
+        constructor: { value: C }
+      });
+      return f(Sub);
+    } catch (e) {
+      return false;
+    }
+  };
+
+  var arePropertyDescriptorsSupported = function() {
+    try {
+      Object.defineProperty({}, 'x', {});
+      return true;
+    } catch (e) { /* this is IE 8. */
+      return false;
+    }
+  };
+
+  var startsWithRejectsRegex = function() {
+    var rejectsRegex = false;
+    if (String.prototype.startsWith) {
+      try {
+        '/a/'.startsWith(/a/);
+      } catch (e) { /* this is spec compliant */
+        rejectsRegex = true;
+      }
+    }
+    return rejectsRegex;
+  };
+
+  var main = function() {
+    var globals = (typeof global === 'undefined') ? window : global;
+    var global_isFinite = globals.isFinite;
+    var supportsDescriptors = !!Object.defineProperty && arePropertyDescriptorsSupported();
+    var startsWithIsCompliant = startsWithRejectsRegex();
+    var _slice = Array.prototype.slice;
+    var _indexOf = String.prototype.indexOf;
+    var _toString = Object.prototype.toString;
+    var _hasOwnProperty = Object.prototype.hasOwnProperty;
+
+    // Define configurable, writable and non-enumerable props
+    // if they don’t exist.
+    var defineProperties = function(object, map) {
+      Object.keys(map).forEach(function(name) {
+        var method = map[name];
+        if (name in object) return;
+        if (supportsDescriptors) {
+          Object.defineProperty(object, name, {
+            configurable: true,
+            enumerable: false,
+            writable: true,
+            value: method
+          });
+        } else {
+          object[name] = method;
+        }
+      });
+    };
+
+    // This is a private name in the es6 spec, equal to '[Symbol.iterator]'
+    // we're going to use an arbitrary _-prefixed name to make our shims
+    // work properly with each other, even though we don't have full Iterator
+    // support.  That is, `Array.from(map.keys())` will work, but we don't
+    // pretend to export a "real" Iterator interface.
+    var $iterator$ = (typeof Symbol === 'object' && Symbol.iterator) ||
+      '_es6shim_iterator_';
+    // Firefox ships a partial implementation using the name @@iterator.
+    // https://bugzilla.mozilla.org/show_bug.cgi?id=907077#c14
+    // So use that name if we detect it.
+    if (globals.Set && typeof new globals.Set()['@@iterator'] === 'function') {
+      $iterator$ = '@@iterator';
+    }
+    var addIterator = function(prototype, impl) {
+      if (!impl) { impl = function iterator() { return this; }; }
+      var o = {};
+      o[$iterator$] = impl;
+      defineProperties(prototype, o);
+    };
+
+    // taken directly from https://github.com/ljharb/is-arguments/blob/master/index.js
+    // can be replaced with require('is-arguments') if we ever use a build process instead
+    var isArguments = function isArguments(value) {
+      var str = _toString.call(value);
+      var result = str === '[object Arguments]';
+      if (!result) {
+        result = str !== '[object Array]' &&
+          value !== null &&
+          typeof value === 'object' &&
+          typeof value.length === 'number' &&
+          value.length >= 0 &&
+          _toString.call(value.callee) === '[object Function]';
+      }
+      return result;
+    };
+
+    var emulateES6construct = function(o) {
+      if (!ES.TypeIsObject(o)) throw new TypeError('bad object');
+      // es5 approximation to es6 subclass semantics: in es6, 'new Foo'
+      // would invoke Foo.@@create to allocation/initialize the new object.
+      // In es5 we just get the plain object.  So if we detect an
+      // uninitialized object, invoke o.constructor.@@create
+      if (!o._es6construct) {
+        if (o.constructor && ES.IsCallable(o.constructor['@@create'])) {
+          o = o.constructor['@@create'](o);
+        }
+        defineProperties(o, { _es6construct: true });
+      }
+      return o;
+    };
+
+    var ES = {
+      CheckObjectCoercible: function(x, optMessage) {
+        /* jshint eqnull:true */
+        if (x == null)
+          throw new TypeError(optMessage || ('Cannot call method on ' + x));
+        return x;
+      },
+
+      TypeIsObject: function(x) {
+        /* jshint eqnull:true */
+        // this is expensive when it returns false; use this function
+        // when you expect it to return true in the common case.
+        return x != null && Object(x) === x;
+      },
+
+      ToObject: function(o, optMessage) {
+        return Object(ES.CheckObjectCoercible(o, optMessage));
+      },
+
+      IsCallable: function(x) {
+        return typeof x === 'function' &&
+          // some versions of IE say that typeof /abc/ === 'function'
+          _toString.call(x) === '[object Function]';
+      },
+
+      ToInt32: function(x) {
+        return x >> 0;
+      },
+
+      ToUint32: function(x) {
+        return x >>> 0;
+      },
+
+      ToInteger: function(value) {
+        var number = +value;
+        if (Number.isNaN(number)) return 0;
+        if (number === 0 || !Number.isFinite(number)) return number;
+        return Math.sign(number) * Math.floor(Math.abs(number));
+      },
+
+      ToLength: function(value) {
+        var len = ES.ToInteger(value);
+        if (len <= 0) return 0; // includes converting -0 to +0
+        if (len > Number.MAX_SAFE_INTEGER) return Number.MAX_SAFE_INTEGER;
+        return len;
+      },
+
+      SameValue: function(a, b) {
+        if (a === b) {
+          // 0 === -0, but they are not identical.
+          if (a === 0) return 1 / a === 1 / b;
+          return true;
+        }
+        return Number.isNaN(a) && Number.isNaN(b);
+      },
+
+      SameValueZero: function(a, b) {
+        // same as SameValue except for SameValueZero(+0, -0) == true
+        return (a === b) || (Number.isNaN(a) && Number.isNaN(b));
+      },
+
+      IsIterable: function(o) {
+        return ES.TypeIsObject(o) &&
+          (o[$iterator$] !== undefined || isArguments(o));
+      },
+
+      GetIterator: function(o) {
+        if (isArguments(o)) {
+          // special case support for `arguments`
+          return new ArrayIterator(o, "value");
+        }
+        var it = o[$iterator$]();
+        if (!ES.TypeIsObject(it)) {
+          throw new TypeError('bad iterator');
+        }
+        return it;
+      },
+
+      IteratorNext: function(it) {
+        var result = (arguments.length > 1) ? it.next(arguments[1]) : it.next();
+        if (!ES.TypeIsObject(result)) {
+          throw new TypeError('bad iterator');
+        }
+        return result;
+      },
+
+      Construct: function(C, args) {
+        // CreateFromConstructor
+        var obj;
+        if (ES.IsCallable(C['@@create'])) {
+          obj = C['@@create']();
+        } else {
+          // OrdinaryCreateFromConstructor
+          obj = Object.create(C.prototype || null);
+        }
+        // Mark that we've used the es6 construct path
+        // (see emulateES6construct)
+        defineProperties(obj, { _es6construct: true });
+        // Call the constructor.
+        var result = C.apply(obj, args);
+        return ES.TypeIsObject(result) ? result : obj;
+      }
+    };
+
+    var numberConversion = (function () {
+      // from https://github.com/inexorabletash/polyfill/blob/master/typedarray.js#L176-L266
+      // with permission and license, per https://twitter.com/inexorabletash/status/372206509540659200
+
+      function roundToEven(n) {
+        var w = Math.floor(n), f = n - w;
+        if (f < 0.5) {
+          return w;
+        }
+        if (f > 0.5) {
+          return w + 1;
+        }
+        return w % 2 ? w + 1 : w;
+      }
+
+      function packIEEE754(v, ebits, fbits) {
+        var bias = (1 << (ebits - 1)) - 1,
+          s, e, f, ln,
+          i, bits, str, bytes;
+
+        // Compute sign, exponent, fraction
+        if (v !== v) {
+          // NaN
+          // http://dev.w3.org/2006/webapi/WebIDL/#es-type-mapping
+          e = (1 << ebits) - 1;
+          f = Math.pow(2, fbits - 1);
+          s = 0;
+        } else if (v === Infinity || v === -Infinity) {
+          e = (1 << ebits) - 1;
+          f = 0;
+          s = (v < 0) ? 1 : 0;
+        } else if (v === 0) {
+          e = 0;
+          f = 0;
+          s = (1 / v === -Infinity) ? 1 : 0;
+        } else {
+          s = v < 0;
+          v = Math.abs(v);
+
+          if (v >= Math.pow(2, 1 - bias)) {
+            e = Math.min(Math.floor(Math.log(v) / Math.LN2), 1023);
+            f = roundToEven(v / Math.pow(2, e) * Math.pow(2, fbits));
+            if (f / Math.pow(2, fbits) >= 2) {
+              e = e + 1;
+              f = 1;
+            }
+            if (e > bias) {
+              // Overflow
+              e = (1 << ebits) - 1;
+              f = 0;
+            } else {
+              // Normal
+              e = e + bias;
+              f = f - Math.pow(2, fbits);
+            }
+          } else {
+            // Subnormal
+            e = 0;
+            f = roundToEven(v / Math.pow(2, 1 - bias - fbits));
+          }
+        }
+
+        // Pack sign, exponent, fraction
+        bits = [];
+        for (i = fbits; i; i -= 1) {
+          bits.push(f % 2 ? 1 : 0);
+          f = Math.floor(f / 2);
+        }
+        for (i = ebits; i; i -= 1) {
+          bits.push(e % 2 ? 1 : 0);
+          e = Math.floor(e / 2);
+        }
+        bits.push(s ? 1 : 0);
+        bits.reverse();
+        str = bits.join('');
+
+        // Bits to bytes
+        bytes = [];
+        while (str.length) {
+          bytes.push(parseInt(str.substring(0, 8), 2));
+          str = str.substring(8);
+        }
+        return bytes;
+      }
+
+      function unpackIEEE754(bytes, ebits, fbits) {
+        // Bytes to bits
+        var bits = [], i, j, b, str,
+            bias, s, e, f;
+
+        for (i = bytes.length; i; i -= 1) {
+          b = bytes[i - 1];
+          for (j = 8; j; j -= 1) {
+            bits.push(b % 2 ? 1 : 0);
+            b = b >> 1;
+          }
+        }
+        bits.reverse();
+        str = bits.join('');
+
+        // Unpack sign, exponent, fraction
+        bias = (1 << (ebits - 1)) - 1;
+        s = parseInt(str.substring(0, 1), 2) ? -1 : 1;
+        e = parseInt(str.substring(1, 1 + ebits), 2);
+        f = parseInt(str.substring(1 + ebits), 2);
+
+        // Produce number
+        if (e === (1 << ebits) - 1) {
+          return f !== 0 ? NaN : s * Infinity;
+        } else if (e > 0) {
+          // Normalized
+          return s * Math.pow(2, e - bias) * (1 + f / Math.pow(2, fbits));
+        } else if (f !== 0) {
+          // Denormalized
+          return s * Math.pow(2, -(bias - 1)) * (f / Math.pow(2, fbits));
+        } else {
+          return s < 0 ? -0 : 0;
+        }
+      }
+
+      function unpackFloat64(b) { return unpackIEEE754(b, 11, 52); }
+      function packFloat64(v) { return packIEEE754(v, 11, 52); }
+      function unpackFloat32(b) { return unpackIEEE754(b, 8, 23); }
+      function packFloat32(v) { return packIEEE754(v, 8, 23); }
+
+      var conversions = {
+        toFloat32: function (num) { return unpackFloat32(packFloat32(num)); }
+      };
+      if (typeof Float32Array !== 'undefined') {
+        var float32array = new Float32Array(1);
+        conversions.toFloat32 = function (num) {
+          float32array[0] = num;
+          return float32array[0];
+        };
+      }
+      return conversions;
+    }());
+
+    defineProperties(String, {
+      fromCodePoint: function() {
+        var points = _slice.call(arguments, 0, arguments.length);
+        var result = [];
+        var next;
+        for (var i = 0, length = points.length; i < length; i++) {
+          next = Number(points[i]);
+          if (!ES.SameValue(next, ES.ToInteger(next)) ||
+              next < 0 || next > 0x10FFFF) {
+            throw new RangeError('Invalid code point ' + next);
+          }
+
+          if (next < 0x10000) {
+            result.push(String.fromCharCode(next));
+          } else {
+            next -= 0x10000;
+            result.push(String.fromCharCode((next >> 10) + 0xD800));
+            result.push(String.fromCharCode((next % 0x400) + 0xDC00));
+          }
+        }
+        return result.join('');
+      },
+
+      raw: function(callSite) { // raw.length===1
+        var substitutions = _slice.call(arguments, 1, arguments.length);
+        var cooked = ES.ToObject(callSite, 'bad callSite');
+        var rawValue = cooked.raw;
+        var raw = ES.ToObject(rawValue, 'bad raw value');
+        var len = Object.keys(raw).length;
+        var literalsegments = ES.ToLength(len);
+        if (literalsegments === 0) {
+          return '';
+        }
+
+        var stringElements = [];
+        var nextIndex = 0;
+        var nextKey, next, nextSeg, nextSub;
+        while (nextIndex < literalsegments) {
+          nextKey = String(nextIndex);
+          next = raw[nextKey];
+          nextSeg = String(next);
+          stringElements.push(nextSeg);
+          if (nextIndex + 1 >= literalsegments) {
+            break;
+          }
+          next = substitutions[nextKey];
+          if (next === undefined) {
+            break;
+          }
+          nextSub = String(next);
+          stringElements.push(nextSub);
+          nextIndex++;
+        }
+        return stringElements.join('');
+      }
+    });
+
+    var StringShims = {
+      // Fast repeat, uses the `Exponentiation by squaring` algorithm.
+      // Perf: http://jsperf.com/string-repeat2/2
+      repeat: (function() {
+        var repeat = function(s, times) {
+          if (times < 1) return '';
+          if (times % 2) return repeat(s, times - 1) + s;
+          var half = repeat(s, times / 2);
+          return half + half;
+        };
+
+        return function(times) {
+          var thisStr = String(ES.CheckObjectCoercible(this));
+          times = ES.ToInteger(times);
+          if (times < 0 || times === Infinity) {
+            throw new RangeError('Invalid String#repeat value');
+          }
+          return repeat(thisStr, times);
+        };
+      })(),
+
+      startsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "startsWith" with a regex');
+        searchStr = String(searchStr);
+        var startArg = arguments.length > 1 ? arguments[1] : undefined;
+        var start = Math.max(ES.ToInteger(startArg), 0);
+        return thisStr.slice(start, start + searchStr.length) === searchStr;
+      },
+
+      endsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "endsWith" with a regex');
+        searchStr = String(searchStr);
+        var thisLen = thisStr.length;
+        var posArg = arguments.length > 1 ? arguments[1] : undefined;
+        var pos = posArg === undefined ? thisLen : ES.ToInteger(posArg);
+        var end = Math.min(Math.max(pos, 0), thisLen);
+        return thisStr.slice(end - searchStr.length, end) === searchStr;
+      },
+
+      contains: function(searchString) {
+        var position = arguments.length > 1 ? arguments[1] : undefined;
+        // Somehow this trick makes method 100% compat with the spec.
+        return _indexOf.call(this, searchString, position) !== -1;
+      },
+
+      codePointAt: function(pos) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        var position = ES.ToInteger(pos);
+        var length = thisStr.length;
+        if (position < 0 || position >= length) return undefined;
+        var first = thisStr.charCodeAt(position);
+        var isEnd = (position + 1 === length);
+        if (first < 0xD800 || first > 0xDBFF || isEnd) return first;
+        var second = thisStr.charCodeAt(position + 1);
+        if (second < 0xDC00 || second > 0xDFFF) return first;
+        return ((first - 0xD800) * 1024) + (second - 0xDC00) + 0x10000;
+      }
+    };
+    defineProperties(String.prototype, StringShims);
+
+    // see https://people.mozilla.org/~jorendorff/es6-draft.html#sec-string.prototype-@@iterator
+    var StringIterator = function(s) {
+      this._s = String(ES.CheckObjectCoercible(s));
+      this._i = 0;
+    };
+    StringIterator.prototype.next = function() {
+      var s = this._s, i = this._i;
+      if (s===undefined || i >= s.length) {
+        this._s = undefined;
+        return { value: undefined, done: true };
+      }
+      var first = s.charCodeAt(i), second, len;
+      if (first < 0xD800 || first > 0xDBFF || (i+1) == s.length) {
+        len = 1;
+      } else {
+        second = s.charCodeAt(i+1);
+        len = (second < 0xDC00 || second > 0xDFFF) ? 1 : 2;
+      }
+      this._i = i + len;
+      return { value: s.substr(i, len), done: false };
+    };
+    addIterator(StringIterator.prototype);
+    addIterator(String.prototype, function() {
+      return new StringIterator(this);
+    });
+
+    if (!startsWithIsCompliant) {
+      // Firefox has a noncompliant startsWith implementation
+      String.prototype.startsWith = StringShims.startsWith;
+      String.prototype.endsWith = StringShims.endsWith;
+    }
+
+    defineProperties(Array, {
+      from: function(iterable) {
+        var mapFn = arguments.length > 1 ? arguments[1] : undefined;
+        var thisArg = arguments.length > 2 ? arguments[2] : undefined;
+
+        var list = ES.ToObject(iterable, 'bad iterable');
+        if (mapFn !== undefined && !ES.IsCallable(mapFn)) {
+          throw new TypeError('Array.from: when provided, the second argument must be a function');
+        }
+
+        var usingIterator = ES.IsIterable(list);
+        // does the spec really mean that Arrays should use ArrayIterator?
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2416
+        //if (Array.isArray(list)) { usingIterator=false; }
+        var length = usingIterator ? 0 : ES.ToLength(list.length);
+        var result = ES.IsCallable(this) ? Object(usingIterator ? new this() : new this(length)) : new Array(length);
+        var it = usingIterator ? ES.GetIterator(list) : null;
+        var value;
+
+        for (var i = 0; usingIterator || (i < length); i++) {
+          if (usingIterator) {
+            value = ES.IteratorNext(it);
+            if (value.done) {
+              length = i;
+              break;
+            }
+            value = value.value;
+          } else {
+            value = list[i];
+          }
+          if (mapFn !== undefined) {
+            result[i] = thisArg ? mapFn.call(thisArg, value) : mapFn(value);
+          } else {
+            result[i] = value;
+          }
+        }
+
+        result.length = length;
+        return result;
+      },
+
+      of: function() {
+        return Array.from(arguments);
+      }
+    });
+
+    defineProperties(globals, {
+      ArrayIterator: function(array, kind) {
+        this.i = 0;
+        this.array = array;
+        this.kind = kind;
+      }
+    });
+
+    defineProperties(ArrayIterator.prototype, {
+      next: function() {
+        var i = this.i, array = this.array;
+        if (i===undefined || this.kind===undefined) {
+          throw new TypeError('Not an ArrayIterator');
+        }
+        if (array!==undefined) {
+          var len = ES.ToLength(array.length);
+          for (; i < len; i++) {
+            var kind = this.kind;
+            var retval;
+            if (kind === "key") {
+              retval = i;
+            }
+            if (kind === "value") {
+              retval = array[i];
+            }
+            if (kind === "entry") {
+              retval = [i, array[i]];
+            }
+            this.i = i + 1;
+            return { value: retval, done: false };
+          }
+        }
+        this.array = undefined;
+        return { value: undefined, done: true };
+      }
+    });
+    addIterator(ArrayIterator.prototype);
+
+    defineProperties(Array.prototype, {
+      copyWithin: function(target, start) {
+        var end = arguments[2]; // copyWithin.length must be 2
+        var o = ES.ToObject(this);
+        var len = ES.ToLength(o.length);
+        target = ES.ToInteger(target);
+        start = ES.ToInteger(start);
+        var to = target < 0 ? Math.max(len + target, 0) : Math.min(target, len);
+        var from = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+        end = (end===undefined) ? len : ES.ToInteger(end);
+        var fin = end < 0 ? Math.max(len + end, 0) : Math.min(end, len);
+        var count = Math.min(fin - from, len - to);
+        var direction = 1;
+        if (from < to && to < (from + count)) {
+          direction = -1;
+          from += count - 1;
+          to += count - 1;
+        }
+        while (count > 0) {
+          if (_hasOwnProperty.call(o, from)) {
+            o[to] = o[from];
+          } else {
+            delete o[from];
+          }
+          from += direction;
+          to += direction;
+          count -= 1;
+        }
+        return o;
+      },
+      fill: function(value) {
+        var start = arguments[1], end = arguments[2]; // fill.length===1
+        var O = ES.ToObject(this);
+        var len = ES.ToLength(O.length);
+        start = ES.ToInteger(start===undefined ? 0 : start);
+        end = ES.ToInteger(end===undefined ? len : end);
+
+        var relativeStart = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+
+        for (var i = relativeStart; i < len && i < end; ++i) {
+          O[i] = value;
+        }
+        return O;
+      },
+
+      find: function(predicate) {
+        var list = ES.ToObject(this);
+        var length = ES.ToLength(list.length);
+        if (!ES.IsCallable(predicate)) {
+          throw new TypeError('Array#find: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0, value; i < length; i++) {
+          if (i in list) {
+            value = list[i];
+            if (predicate.call(thisArg, value, i, list)) return value;
+          }
+        }
+        return undefined;
+      },
+
+      findIndex: function(predicate) {
+        var list = ES.ToObject(this);
+        var length = ES.ToLength(list.length);
+        if (!ES.IsCallable(predicate)) {
+          throw new TypeError('Array#findIndex: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0; i < length; i++) {
+          if (i in list) {
+            if (predicate.call(thisArg, list[i], i, list)) return i;
+          }
+        }
+        return -1;
+      },
+
+      keys: function() {
+        return new ArrayIterator(this, "key");
+      },
+
+      values: function() {
+        return new ArrayIterator(this, "value");
+      },
+
+      entries: function() {
+        return new ArrayIterator(this, "entry");
+      }
+    });
+    addIterator(Array.prototype, function() { return this.values(); });
+    // Chrome defines keys/values/entries on Array, but doesn't give us
+    // any way to identify its iterator.  So add our own shimmed field.
+    addIterator(Object.getPrototypeOf([].values()));
+
+    var maxSafeInteger = Math.pow(2, 53) - 1;
+    defineProperties(Number, {
+      MAX_SAFE_INTEGER: maxSafeInteger,
+      MIN_SAFE_INTEGER: -maxSafeInteger,
+      EPSILON: 2.220446049250313e-16,
+
+      parseInt: globals.parseInt,
+      parseFloat: globals.parseFloat,
+
+      isFinite: function(value) {
+        return typeof value === 'number' && global_isFinite(value);
+      },
+
+      isInteger: function(value) {
+        return typeof value === 'number' &&
+          !Number.isNaN(value) &&
+          Number.isFinite(value) &&
+          ES.ToInteger(value) === value;
+      },
+
+      isSafeInteger: function(value) {
+        return Number.isInteger(value) &&
+          Math.abs(value) <= Number.MAX_SAFE_INTEGER;
+      },
+
+      isNaN: function(value) {
+        // NaN !== NaN, but they are identical.
+        // NaNs are the only non-reflexive value, i.e., if x !== x,
+        // then x is NaN.
+        // isNaN is broken: it converts its argument to number, so
+        // isNaN('foo') => true
+        return value !== value;
+      }
+
+    });
+
+    defineProperties(Number.prototype, {
+    });
+
+    if (supportsDescriptors) {
+      defineProperties(Object, {
+        getOwnPropertyDescriptors: function(subject) {
+          var descs = {};
+          Object.getOwnPropertyNames(subject).forEach(function(propName) {
+            descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+          });
+          return descs;
+        },
+
+        getPropertyDescriptor: function(subject, name) {
+          var pd = Object.getOwnPropertyDescriptor(subject, name);
+          var proto = Object.getPrototypeOf(subject);
+          while (pd === undefined && proto !== null) {
+            pd = Object.getOwnPropertyDescriptor(proto, name);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return pd;
+        },
+
+        getPropertyNames: function(subject) {
+          var result = Object.getOwnPropertyNames(subject);
+          var proto = Object.getPrototypeOf(subject);
+
+          var addProperty = function(property) {
+            if (result.indexOf(property) === -1) {
+              result.push(property);
+            }
+          };
+
+          while (proto !== null) {
+            Object.getOwnPropertyNames(proto).forEach(addProperty);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return result;
+        },
+
+        // 19.1.3.1
+        assign: function(target, source) {
+          return Object.keys(source).reduce(function(target, key) {
+            target[key] = source[key];
+            return target;
+          }, target);
+        }
+      });
+
+      // 19.1.3.9
+      // shim from https://gist.github.com/WebReflection/5593554
+      defineProperties(Object, {
+        setPrototypeOf: (function(Object, magic) {
+          var set;
+
+          var checkArgs = function(O, proto) {
+            if (!ES.TypeIsObject(O)) {
+              throw new TypeError('cannot set prototype on a non-object');
+            }
+            if (!(proto===null || ES.TypeIsObject(proto))) {
+              throw new TypeError('can only set prototype to an object or null'+proto);
+            }
+          };
+
+          var setPrototypeOf = function(O, proto) {
+            checkArgs(O, proto);
+            set.call(O, proto);
+            return O;
+          };
+
+          try {
+            // this works already in Firefox and Safari
+            set = Object.getOwnPropertyDescriptor(Object.prototype, magic).set;
+            set.call({}, null);
+          } catch (e) {
+            if (Object.prototype !== {}[magic]) {
+              // IE < 11 cannot be shimmed
+              return;
+            }
+            // probably Chrome or some old Mobile stock browser
+            set = function(proto) {
+              this[magic] = proto;
+            };
+            // please note that this will **not** work
+            // in those browsers that do not inherit
+            // __proto__ by mistake from Object.prototype
+            // in these cases we should probably throw an error
+            // or at least be informed about the issue
+            setPrototypeOf.polyfill = setPrototypeOf(
+              setPrototypeOf({}, null),
+              Object.prototype
+            ) instanceof Object;
+            // setPrototypeOf.polyfill === true means it works as meant
+            // setPrototypeOf.polyfill === false means it's not 100% reliable
+            // setPrototypeOf.polyfill === undefined
+            // or
+            // setPrototypeOf.polyfill ==  null means it's not a polyfill
+            // which means it works as expected
+            // we can even delete Object.prototype.__proto__;
+          }
+          return setPrototypeOf;
+        })(Object, '__proto__')
+      });
+    }
+
+    // Workaround bug in Opera 12 where setPrototypeOf(x, null) doesn't work,
+    // but Object.create(null) does.
+    if (Object.setPrototypeOf && Object.getPrototypeOf &&
+        Object.getPrototypeOf(Object.setPrototypeOf({}, null)) !== null &&
+        Object.getPrototypeOf(Object.create(null)) === null) {
+      (function() {
+        var FAKENULL = Object.create(null);
+        var gpo = Object.getPrototypeOf, spo = Object.setPrototypeOf;
+        Object.getPrototypeOf = function(o) {
+          var result = gpo(o);
+          return result === FAKENULL ? null : result;
+        };
+        Object.setPrototypeOf = function(o, p) {
+          if (p === null) { p = FAKENULL; }
+          return spo(o, p);
+        };
+        Object.setPrototypeOf.polyfill = false;
+      })();
+    }
+
+    defineProperties(Object, {
+      getOwnPropertyKeys: function(subject) {
+        return Object.keys(subject);
+      },
+
+      is: function(a, b) {
+        return ES.SameValue(a, b);
+      }
+    });
+
+    try {
+      Object.keys('foo');
+    } catch (e) {
+      var originalObjectKeys = Object.keys;
+      Object.keys = function (obj) {
+        return originalObjectKeys(ES.ToObject(obj));
+      };
+    }
+
+    var MathShims = {
+      acosh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < 1) return NaN;
+        if (value === 1) return 0;
+        if (value === Infinity) return value;
+        return Math.log(value + Math.sqrt(value * value - 1));
+      },
+
+      asinh: function(value) {
+        value = Number(value);
+        if (value === 0 || !global_isFinite(value)) {
+          return value;
+        }
+        return value < 0 ? -Math.asinh(-value) : Math.log(value + Math.sqrt(value * value + 1));
+      },
+
+      atanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < -1 || value > 1) {
+          return NaN;
+        }
+        if (value === -1) return -Infinity;
+        if (value === 1) return Infinity;
+        if (value === 0) return value;
+        return 0.5 * Math.log((1 + value) / (1 - value));
+      },
+
+      cbrt: function(value) {
+        value = Number(value);
+        if (value === 0) return value;
+        var negate = value < 0, result;
+        if (negate) value = -value;
+        result = Math.pow(value, 1/3);
+        return negate ? -result : result;
+      },
+
+      clz32: function(value) {
+        // See https://bugs.ecmascript.org/show_bug.cgi?id=2465
+        value = Number(value);
+        if (Number.isNaN(value)) return NaN;
+        var number = ES.ToUint32(value);
+        if (number === 0) {
+          return 32;
+        }
+        return 32 - (number).toString(2).length;
+      },
+
+      cosh: function(value) {
+        value = Number(value);
+        if (value === 0) return 1; // +0 or -0
+        if (Number.isNaN(value)) return NaN;
+        if (!global_isFinite(value)) return Infinity;
+        if (value < 0) value = -value;
+        if (value > 21) return Math.exp(value) / 2;
+        return (Math.exp(value) + Math.exp(-value)) / 2;
+      },
+
+      expm1: function(value) {
+        value = Number(value);
+        if (value === -Infinity) return -1;
+        if (!global_isFinite(value) || value === 0) return value;
+        var result = 0;
+        var n = 50;
+        for (var i = 1; i < n; i++) {
+          for (var j = 2, factorial = 1; j <= i; j++) {
+            factorial *= j;
+          }
+          result += Math.pow(value, i) / factorial;
+        }
+        return result;
+      },
+
+      hypot: function(x, y) {
+        var anyNaN = false;
+        var allZero = true;
+        var anyInfinity = false;
+        var numbers = [];
+        Array.prototype.every.call(arguments, function(arg) {
+          var num = Number(arg);
+          if (Number.isNaN(num)) anyNaN = true;
+          else if (num === Infinity || num === -Infinity) anyInfinity = true;
+          else if (num !== 0) allZero = false;
+          if (anyInfinity) {
+            return false;
+          } else if (!anyNaN) {
+            numbers.push(Math.abs(num));
+          }
+          return true;
+        });
+        if (anyInfinity) return Infinity;
+        if (anyNaN) return NaN;
+        if (allZero) return 0;
+
+        numbers.sort(function (a, b) { return b - a; });
+        var largest = numbers[0];
+        var divided = numbers.map(function (number) { return number / largest; });
+        var sum = divided.reduce(function (sum, number) { return sum += number * number; }, 0);
+        return largest * Math.sqrt(sum);
+      },
+
+      log2: function(value) {
+        return Math.log(value) * Math.LOG2E;
+      },
+
+      log10: function(value) {
+        return Math.log(value) * Math.LOG10E;
+      },
+
+      log1p: function(value) {
+        value = Number(value);
+        if (value < -1 || Number.isNaN(value)) return NaN;
+        if (value === 0 || value === Infinity) return value;
+        if (value === -1) return -Infinity;
+        var result = 0;
+        var n = 50;
+
+        if (value < 0 || value > 1) return Math.log(1 + value);
+        for (var i = 1; i < n; i++) {
+          if ((i % 2) === 0) {
+            result -= Math.pow(value, i) / i;
+          } else {
+            result += Math.pow(value, i) / i;
+          }
+        }
+
+        return result;
+      },
+
+      sign: function(value) {
+        var number = +value;
+        if (number === 0) return number;
+        if (Number.isNaN(number)) return number;
+        return number < 0 ? -1 : 1;
+      },
+
+      sinh: function(value) {
+        value = Number(value);
+        if (!global_isFinite(value) || value === 0) return value;
+        return (Math.exp(value) - Math.exp(-value)) / 2;
+      },
+
+      tanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value === 0) return value;
+        if (value === Infinity) return 1;
+        if (value === -Infinity) return -1;
+        return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+      },
+
+      trunc: function(value) {
+        var number = Number(value);
+        return number < 0 ? -Math.floor(-number) : Math.floor(number);
+      },
+
+      imul: function(x, y) {
+        // taken from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
+        var ah  = (x >>> 16) & 0xffff;
+        var al = x & 0xffff;
+        var bh  = (y >>> 16) & 0xffff;
+        var bl = y & 0xffff;
+        // the shift by 0 fixes the sign on the high part
+        // the final |0 converts the unsigned value into a signed value
+        return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);
+      },
+
+      fround: function(x) {
+        if (x === 0 || x === Infinity || x === -Infinity || Number.isNaN(x)) {
+          return x;
+        }
+        var num = Number(x);
+        return numberConversion.toFloat32(num);
+      }
+    };
+    defineProperties(Math, MathShims);
+
+    if (Math.imul(0xffffffff, 5) !== -5) {
+      // Safari 6.1, at least, reports "0" for this value
+      Math.imul = MathShims.imul;
+    }
+
+    // Promises
+    // Simplest possible implementation; use a 3rd-party library if you
+    // want the best possible speed and/or long stack traces.
+    var PromiseShim = (function() {
+
+      var Promise, Promise$prototype;
+
+      ES.IsPromise = function(promise) {
+        if (!ES.TypeIsObject(promise)) {
+          return false;
+        }
+        if (!promise._promiseConstructor) {
+          // _promiseConstructor is a bit more unique than _status, so we'll
+          // check that instead of the [[PromiseStatus]] internal field.
+          return false;
+        }
+        if (promise._status === undefined) {
+          return false; // uninitialized
+        }
+        return true;
+      };
+
+      // "PromiseCapability" in the spec is what most promise implementations
+      // call a "deferred".
+      var PromiseCapability = function(C) {
+        if (!ES.IsCallable(C)) {
+          throw new TypeError('bad promise constructor');
+        }
+        var capability = this;
+        var resolver = function(resolve, reject) {
+          capability.resolve = resolve;
+          capability.reject = reject;
+        };
+        capability.promise = ES.Construct(C, [resolver]);
+        // see https://bugs.ecmascript.org/show_bug.cgi?id=2478
+        if (!capability.promise._es6construct) {
+          throw new TypeError('bad promise constructor');
+        }
+        if (!(ES.IsCallable(capability.resolve) &&
+              ES.IsCallable(capability.reject))) {
+          throw new TypeError('bad promise constructor');
+        }
+      };
+
+      // find an appropriate setImmediate-alike
+      var setTimeout = globals.setTimeout;
+      var makeZeroTimeout = function() {
+        // from http://dbaron.org/log/20100309-faster-timeouts
+        var timeouts = [];
+        var messageName = "zero-timeout-message";
+        var setZeroTimeout = function(fn) {
+          timeouts.push(fn);
+          window.postMessage(messageName, "*");
+        };
+        var handleMessage = function(event) {
+          if (event.source == window && event.data == messageName) {
+            event.stopPropagation();
+            if (timeouts.length === 0) { return; }
+            var fn = timeouts.shift();
+            fn();
+          }
+        };
+        window.addEventListener("message", handleMessage, true);
+        return setZeroTimeout;
+      };
+      var enqueue = ES.IsCallable(globals.setImmediate) ?
+        globals.setImmediate.bind(globals) :
+        typeof process === 'object' && process.nextTick ? process.nextTick :
+        ES.IsCallable(window.postMessage) ? makeZeroTimeout() :
+        function(task) { setTimeout(task, 0); }; // fallback
+
+      var triggerPromiseReactions = function(reactions, x) {
+        reactions.forEach(function(reaction) {
+          enqueue(function() {
+            // PromiseReactionTask
+            var handler = reaction.handler;
+            var capability = reaction.capability;
+            var resolve = capability.resolve;
+            var reject = capability.reject;
+            try {
+              var result = handler(x);
+              if (result === capability.promise) {
+                throw new TypeError('self resolution');
+              }
+              var updateResult =
+                updatePromiseFromPotentialThenable(result, capability);
+              if (!updateResult) {
+                resolve(result);
+              }
+            } catch (e) {
+              reject(e);
+            }
+          });
+        });
+      };
+
+      var updatePromiseFromPotentialThenable = function(x, capability) {
+        if (!ES.TypeIsObject(x)) {
+          return false;
+        }
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          var then = x.then; // only one invocation of accessor
+          if (!ES.IsCallable(then)) { return false; }
+          then.call(x, resolve, reject);
+        } catch(e) {
+          reject(e);
+        }
+        return true;
+      };
+
+      var promiseResolutionHandler = function(promise, onFulfilled, onRejected){
+        return function(x) {
+          if (x === promise) {
+            return onRejected(new TypeError('self resolution'));
+          }
+          var C = promise._promiseConstructor;
+          var capability = new PromiseCapability(C);
+          var updateResult = updatePromiseFromPotentialThenable(x, capability);
+          if (updateResult) {
+            return capability.promise.then(onFulfilled, onRejected);
+          } else {
+            return onFulfilled(x);
+          }
+        };
+      };
+
+      Promise = function(resolver) {
+        var promise = this;
+        promise = emulateES6construct(promise);
+        if (!promise._promiseConstructor) {
+          // we use _promiseConstructor as a stand-in for the internal
+          // [[PromiseStatus]] field; it's a little more unique.
+          throw new TypeError('bad promise');
+        }
+        if (promise._status !== undefined) {
+          throw new TypeError('promise already initialized');
+        }
+        // see https://bugs.ecmascript.org/show_bug.cgi?id=2482
+        if (!ES.IsCallable(resolver)) {
+          throw new TypeError('not a valid resolver');
+        }
+        promise._status = 'unresolved';
+        promise._resolveReactions = [];
+        promise._rejectReactions = [];
+
+        var resolve = function(resolution) {
+          if (promise._status !== 'unresolved') { return; }
+          var reactions = promise._resolveReactions;
+          promise._result = resolution;
+          promise._resolveReactions = undefined;
+          promise._rejectReactions = undefined;
+          promise._status = 'has-resolution';
+          triggerPromiseReactions(reactions, resolution);
+        };
+        var reject = function(reason) {
+          if (promise._status !== 'unresolved') { return; }
+          var reactions = promise._rejectReactions;
+          promise._result = reason;
+          promise._resolveReactions = undefined;
+          promise._rejectReactions = undefined;
+          promise._status = 'has-rejection';
+          triggerPromiseReactions(reactions, reason);
+        };
+        try {
+          resolver(resolve, reject);
+        } catch (e) {
+          reject(e);
+        }
+        return promise;
+      };
+      Promise$prototype = Promise.prototype;
+      defineProperties(Promise, {
+        '@@create': function(obj) {
+          var constructor = this;
+          // AllocatePromise
+          // The `obj` parameter is a hack we use for es5
+          // compatibility.
+          var prototype = constructor.prototype || Promise$prototype;
+          obj = obj || Object.create(prototype);
+          defineProperties(obj, {
+            _status: undefined,
+            _result: undefined,
+            _resolveReactions: undefined,
+            _rejectReactions: undefined,
+            _promiseConstructor: undefined
+          });
+          obj._promiseConstructor = constructor;
+          return obj;
+        }
+      });
+
+      var _promiseAllResolver = function(index, values, capability, remaining) {
+        var done = false;
+        return function(x) {
+          if (done) { return; } // protect against being called multiple times
+          done = true;
+          values[index] = x;
+          if ((--remaining.count) === 0) {
+            var resolve = capability.resolve;
+            resolve(values); // call w/ this===undefined
+          }
+        };
+      };
+
+      Promise.all = function(iterable) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          if (!ES.IsIterable(iterable)) {
+            throw new TypeError('bad iterable');
+          }
+          var it = ES.GetIterator(iterable);
+          var values = [], remaining = { count: 1 };
+          for (var index = 0; ; index++) {
+            var next = ES.IteratorNext(it);
+            if (next.done) {
+              break;
+            }
+            var nextPromise = C.resolve(next.value);
+            var resolveElement = _promiseAllResolver(
+              index, values, capability, remaining
+            );
+            remaining.count++;
+            nextPromise.then(resolveElement, capability.reject);
+          }
+          if ((--remaining.count) === 0) {
+            resolve(values); // call w/ this===undefined
+          }
+        } catch (e) {
+          reject(e);
+        }
+        return capability.promise;
+      };
+
+      Promise.race = function(iterable) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          if (!ES.IsIterable(iterable)) {
+            throw new TypeError('bad iterable');
+          }
+          var it = ES.GetIterator(iterable);
+          while (true) {
+            var next = ES.IteratorNext(it);
+            if (next.done) {
+              // If iterable has no items, resulting promise will never
+              // resolve; see:
+              // https://github.com/domenic/promises-unwrapping/issues/75
+              // https://bugs.ecmascript.org/show_bug.cgi?id=2515
+              break;
+            }
+            var nextPromise = C.resolve(next.value);
+            nextPromise.then(resolve, reject);
+          }
+        } catch (e) {
+          reject(e);
+        }
+        return capability.promise;
+      };
+
+      Promise.reject = function(reason) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var reject = capability.reject;
+        reject(reason); // call with this===undefined
+        return capability.promise;
+      };
+
+      Promise.resolve = function(v) {
+        var C = this;
+        if (ES.IsPromise(v)) {
+          var constructor = v._promiseConstructor;
+          if (constructor === C) { return v; }
+        }
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        resolve(v); // call with this===undefined
+        return capability.promise;
+      };
+
+      Promise.prototype['catch'] = function( onRejected ) {
+        return this.then(undefined, onRejected);
+      };
+
+      Promise.prototype.then = function( onFulfilled, onRejected ) {
+        var promise = this;
+        if (!ES.IsPromise(promise)) { throw new TypeError('not a promise'); }
+        // this.constructor not this._promiseConstructor; see
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2513
+        var C = this.constructor;
+        var capability = new PromiseCapability(C);
+        if (!ES.IsCallable(onRejected)) {
+          onRejected = function(e) { throw e; };
+        }
+        if (!ES.IsCallable(onFulfilled)) {
+          onFulfilled = function(x) { return x; };
+        }
+        var resolutionHandler =
+          promiseResolutionHandler(promise, onFulfilled, onRejected);
+        var resolveReaction =
+          { capability: capability, handler: resolutionHandler };
+        var rejectReaction =
+          { capability: capability, handler: onRejected };
+        switch (promise._status) {
+        case 'unresolved':
+          promise._resolveReactions.push(resolveReaction);
+          promise._rejectReactions.push(rejectReaction);
+          break;
+        case 'has-resolution':
+          triggerPromiseReactions([resolveReaction], promise._result);
+          break;
+        case 'has-rejection':
+          triggerPromiseReactions([rejectReaction], promise._result);
+          break;
+        default:
+          throw new TypeError('unexpected');
+        }
+        return capability.promise;
+      };
+
+      return Promise;
+    })();
+    // export the Promise constructor.
+    defineProperties(globals, { Promise: PromiseShim });
+    // In Chrome 33 (and thereabouts) Promise is defined, but the
+    // implementation is buggy in a number of ways.  Let's check subclassing
+    // support to see if we have a buggy implementation.
+    if (!supportsSubclassing(globals.Promise, function(S) {
+      return S.resolve(42) instanceof S;
+    })) {
+      globals.Promise = PromiseShim;
+    }
+
+    // Map and Set require a true ES5 environment
+    if (supportsDescriptors) {
+
+      var fastkey = function fastkey(key) {
+        var type = typeof key;
+        if (type === 'string') {
+          return '$' + key;
+        } else if (type === 'number') {
+          // note that -0 will get coerced to "0" when used as a property key
+          return key;
+        }
+        return null;
+      };
+
+      var emptyObject = function emptyObject() {
+        // accomodate some older not-quite-ES5 browsers
+        return Object.create ? Object.create(null) : {};
+      };
+
+      var collectionShims = {
+        Map: (function() {
+
+          var empty = {};
+
+          function MapEntry(key, value) {
+            this.key = key;
+            this.value = value;
+            this.next = null;
+            this.prev = null;
+          }
+
+          MapEntry.prototype.isRemoved = function() {
+            return this.key === empty;
+          };
+
+          function MapIterator(map, kind) {
+            this.head = map._head;
+            this.i = this.head;
+            this.kind = kind;
+          }
+
+          MapIterator.prototype = {
+            next: function() {
+              var i = this.i, kind = this.kind, head = this.head, result;
+              if (this.i === undefined) {
+                return { value: undefined, done: true };
+              }
+              while (i.isRemoved() && i !== head) {
+                // back up off of removed entries
+                i = i.prev;
+              }
+              // advance to next unreturned element.
+              while (i.next !== head) {
+                i = i.next;
+                if (!i.isRemoved()) {
+                  if (kind === "key") {
+                    result = i.key;
+                  } else if (kind === "value") {
+                    result = i.value;
+                  } else {
+                    result = [i.key, i.value];
+                  }
+                  this.i = i;
+                  return { value: result, done: false };
+                }
+              }
+              // once the iterator is done, it is done forever.
+              this.i = undefined;
+              return { value: undefined, done: true };
+            }
+          };
+          addIterator(MapIterator.prototype);
+
+          function Map() {
+            var map = this;
+            map = emulateES6construct(map);
+            if (!map._es6map) {
+              throw new TypeError('bad map');
+            }
+
+            var head = new MapEntry(null, null);
+            // circular doubly-linked list.
+            head.next = head.prev = head;
+
+            defineProperties(map, {
+              '_head': head,
+              '_storage': emptyObject(),
+              '_size': 0
+            });
+
+            // Optionally initialize map from iterable
+            var iterable = arguments[0];
+            if (iterable !== undefined && iterable !== null) {
+              var it = ES.GetIterator(iterable);
+              var adder = map.set;
+              if (!ES.IsCallable(adder)) { throw new TypeError('bad map'); }
+              while (true) {
+                var next = ES.IteratorNext(it);
+                if (next.done) { break; }
+                var nextItem = next.value;
+                if (!ES.TypeIsObject(nextItem)) {
+                  throw new TypeError('expected iterable of pairs');
+                }
+                adder.call(map, nextItem[0], nextItem[1]);
+              }
+            }
+            return map;
+          }
+          var Map$prototype = Map.prototype;
+          defineProperties(Map, {
+            '@@create': function(obj) {
+              var constructor = this;
+              var prototype = constructor.prototype || Map$prototype;
+              obj = obj || Object.create(prototype);
+              defineProperties(obj, { _es6map: true });
+              return obj;
+            }
+          });
+
+          Object.defineProperty(Map.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._size === 'undefined') {
+                throw new TypeError('size method called on incompatible Map');
+              }
+              return this._size;
+            }
+          });
+
+          defineProperties(Map.prototype, {
+            get: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                var entry = this._storage[fkey];
+                return entry ? entry.value : undefined;
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return i.value;
+                }
+              }
+              return undefined;
+            },
+
+            has: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                return typeof this._storage[fkey] !== 'undefined';
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            set: function(key, value) {
+              var head = this._head, i = head, entry;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] !== 'undefined') {
+                  this._storage[fkey].value = value;
+                  return;
+                } else {
+                  entry = this._storage[fkey] = new MapEntry(key, value);
+                  i = head.prev;
+                  // fall through
+                }
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.value = value;
+                  return;
+                }
+              }
+              entry = entry || new MapEntry(key, value);
+              if (ES.SameValue(-0, key)) {
+                entry.key = +0; // coerce -0 to +0 in entry
+              }
+              entry.next = this._head;
+              entry.prev = this._head.prev;
+              entry.prev.next = entry;
+              entry.next.prev = entry;
+              this._size += 1;
+            },
+
+            'delete': function(key) {
+              var head = this._head, i = head;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] === 'undefined') {
+                  return false;
+                }
+                i = this._storage[fkey].prev;
+                delete this._storage[fkey];
+                // fall through
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.key = i.value = empty;
+                  i.prev.next = i.next;
+                  i.next.prev = i.prev;
+                  this._size -= 1;
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            clear: function() {
+              this._size = 0;
+              this._storage = emptyObject();
+              var head = this._head, i = head, p = i.next;
+              while ((i = p) !== head) {
+                i.key = i.value = empty;
+                p = i.next;
+                i.next = i.prev = head;
+              }
+              head.next = head.prev = head;
+            },
+
+            keys: function() {
+              return new MapIterator(this, "key");
+            },
+
+            values: function() {
+              return new MapIterator(this, "value");
+            },
+
+            entries: function() {
+              return new MapIterator(this, "key+value");
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var it = this.entries();
+              for (var entry = it.next(); !entry.done; entry = it.next()) {
+                callback.call(context, entry.value[1], entry.value[0], this);
+              }
+            }
+          });
+          addIterator(Map.prototype, function() { return this.entries(); });
+
+          return Map;
+        })(),
+
+        Set: (function() {
+          // Creating a Map is expensive.  To speed up the common case of
+          // Sets containing only string or numeric keys, we use an object
+          // as backing storage and lazily create a full Map only when
+          // required.
+          var SetShim = function Set() {
+            var set = this;
+            set = emulateES6construct(set);
+            if (!set._es6set) {
+              throw new TypeError('bad set');
+            }
+
+            defineProperties(set, {
+              '[[SetData]]': null,
+              '_storage': emptyObject()
+            });
+
+            // Optionally initialize map from iterable
+            var iterable = arguments[0];
+            if (iterable !== undefined && iterable !== null) {
+              var it = ES.GetIterator(iterable);
+              var adder = set.add;
+              if (!ES.IsCallable(adder)) { throw new TypeError('bad set'); }
+              while (true) {
+                var next = ES.IteratorNext(it);
+                if (next.done) { break; }
+                var nextItem = next.value;
+                adder.call(set, nextItem);
+              }
+            }
+            return set;
+          };
+          var Set$prototype = SetShim.prototype;
+          defineProperties(SetShim, {
+            '@@create': function(obj) {
+              var constructor = this;
+              var prototype = constructor.prototype || Set$prototype;
+              obj = obj || Object.create(prototype);
+              defineProperties(obj, { _es6set: true });
+              return obj;
+            }
+          });
+
+          // Switch from the object backing storage to a full Map.
+          var ensureMap = function ensureMap(set) {
+            if (!set['[[SetData]]']) {
+              var m = set['[[SetData]]'] = new collectionShims.Map();
+              Object.keys(set._storage).forEach(function(k) {
+                // fast check for leading '$'
+                if (k.charCodeAt(0) === 36) {
+                  k = k.substring(1);
+                } else {
+                  k = +k;
+                }
+                m.set(k, k);
+              });
+              set._storage = null; // free old backing storage
+            }
+          };
+
+          Object.defineProperty(SetShim.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._storage === 'undefined') {
+                // https://github.com/paulmillr/es6-shim/issues/176
+                throw new TypeError('size method called on incompatible Set');
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].size;
+            }
+          });
+
+          defineProperties(SetShim.prototype, {
+            has: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                return !!this._storage[fkey];
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].has(key);
+            },
+
+            add: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                this._storage[fkey]=true;
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].set(key, key);
+            },
+
+            'delete': function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                delete this._storage[fkey];
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]']['delete'](key);
+            },
+
+            clear: function() {
+              if (this._storage) {
+                this._storage = emptyObject();
+                return;
+              }
+              return this['[[SetData]]'].clear();
+            },
+
+            keys: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].keys();
+            },
+
+            values: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].values();
+            },
+
+            entries: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].entries();
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var entireSet = this;
+              ensureMap(this);
+              this['[[SetData]]'].forEach(function(value, key) {
+                callback.call(context, key, key, entireSet);
+              });
+            }
+          });
+          addIterator(SetShim.prototype, function() { return this.values(); });
+
+          return SetShim;
+        })()
+      };
+      defineProperties(globals, collectionShims);
+
+      if (globals.Map || globals.Set) {
+        /*
+          - In Firefox < 23, Map#size is a function.
+          - In all current Firefox, Set#entries/keys/values & Map#clear do not exist
+          - https://bugzilla.mozilla.org/show_bug.cgi?id=869996
+          - In Firefox 24, Map and Set do not implement forEach
+          - In Firefox 25 at least, Map and Set are callable without "new"
+        */
+        if (
+          typeof globals.Map.prototype.clear !== 'function' ||
+          new globals.Set().size !== 0 ||
+          new globals.Map().size !== 0 ||
+          typeof globals.Set.prototype.keys !== 'function' ||
+          typeof globals.Map.prototype.forEach !== 'function' ||
+          typeof globals.Set.prototype.forEach !== 'function' ||
+          isCallableWithoutNew(globals.Map) ||
+          isCallableWithoutNew(globals.Set) ||
+          !supportsSubclassing(globals.Map, function(M) {
+            return (new M([])) instanceof M;
+          })
+        ) {
+          globals.Map = collectionShims.Map;
+          globals.Set = collectionShims.Set;
+        }
+      }
+      // Shim incomplete iterator implementations.
+      addIterator(Object.getPrototypeOf((new globals.Map()).keys()));
+      addIterator(Object.getPrototypeOf((new globals.Set()).keys()));
+    }
+  };
+
+  if (typeof define === 'function' && typeof define.amd === 'object' && define.amd) {
+    define(main); // RequireJS
+  } else {
+    main(); // CommonJS and <script>
+  }
+})();
diff --git a/ajax/libs/es6-shim/0.10.1/es6-shim.min.js b/ajax/libs/es6-shim/0.10.1/es6-shim.min.js
new file mode 100644
index 000000000..925f846d9
--- /dev/null
+++ b/ajax/libs/es6-shim/0.10.1/es6-shim.min.js
@@ -0,0 +1 @@
+!function(t){"use strict";var e=function(t){try{t()}catch(e){return!1}return!0},r=function(t,e){try{var r=function(){t.apply(this,arguments)};return r.__proto__?(Object.setPrototypeOf(r,t),r.prototype=Object.create(t.prototype,{constructor:{value:t}}),e(r)):!1}catch(n){return!1}},n=function(){try{return Object.defineProperty({},"x",{}),!0}catch(t){return!1}},o=function(){var t=!1;if(String.prototype.startsWith)try{"/a/".startsWith(/a/)}catch(e){t=!0}return t},a=function(){var a="undefined"==typeof global?window:global,i=a.isFinite,u=!!Object.defineProperty&&n(),s=o(),c=Array.prototype.slice,f=String.prototype.indexOf,l=Object.prototype.toString,h=Object.prototype.hasOwnProperty,p=function(t,e){Object.keys(e).forEach(function(r){var n=e[r];r in t||(u?Object.defineProperty(t,r,{configurable:!0,enumerable:!1,writable:!0,value:n}):t[r]=n)})},v="object"==typeof Symbol&&Symbol.iterator||"_es6shim_iterator_";a.Set&&"function"==typeof(new a.Set)["@@iterator"]&&(v="@@iterator");var y=function(t,e){e||(e=function(){return this});var r={};r[v]=e,p(t,r)},b=function(t){var e=l.call(t),r="[object Arguments]"===e;return r||(r="[object Array]"!==e&&null!==t&&"object"==typeof t&&"number"==typeof t.length&&t.length>=0&&"[object Function]"===l.call(t.callee)),r},g=function(t){if(!m.TypeIsObject(t))throw new TypeError("bad object");return t._es6construct||(t.constructor&&m.IsCallable(t.constructor["@@create"])&&(t=t.constructor["@@create"](t)),p(t,{_es6construct:!0})),t},m={CheckObjectCoercible:function(t,e){if(null==t)throw new TypeError(e||"Cannot call method on "+t);return t},TypeIsObject:function(t){return null!=t&&Object(t)===t},ToObject:function(t,e){return Object(m.CheckObjectCoercible(t,e))},IsCallable:function(t){return"function"==typeof t&&"[object Function]"===l.call(t)},ToInt32:function(t){return t>>0},ToUint32:function(t){return t>>>0},ToInteger:function(t){var e=+t;return 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\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.11.1/es6-shim.js b/ajax/libs/es6-shim/0.11.1/es6-shim.js
new file mode 100644
index 000000000..4b3a8f7e5
--- /dev/null
+++ b/ajax/libs/es6-shim/0.11.1/es6-shim.js
@@ -0,0 +1,1856 @@
+// ES6-shim 0.11.1 (c) 2013-2014 Paul Miller (http://paulmillr.com)
+// ES6-shim may be freely distributed under the MIT license.
+// For more details and documentation:
+// https://github.com/paulmillr/es6-shim/
+
+(function(undefined) {
+  'use strict';
+
+  var isCallableWithoutNew = function(func) {
+    try { func(); }
+    catch (e) { return false; }
+    return true;
+  };
+
+  var supportsSubclassing = function(C, f) {
+    /* jshint proto:true */
+    try {
+      var Sub = function() { C.apply(this, arguments); };
+      if (!Sub.__proto__) { return false; /* skip test on IE < 11 */ }
+      Object.setPrototypeOf(Sub, C);
+      Sub.prototype = Object.create(C.prototype, {
+        constructor: { value: C }
+      });
+      return f(Sub);
+    } catch (e) {
+      return false;
+    }
+  };
+
+  var arePropertyDescriptorsSupported = function() {
+    try {
+      Object.defineProperty({}, 'x', {});
+      return true;
+    } catch (e) { /* this is IE 8. */
+      return false;
+    }
+  };
+
+  var startsWithRejectsRegex = function() {
+    var rejectsRegex = false;
+    if (String.prototype.startsWith) {
+      try {
+        '/a/'.startsWith(/a/);
+      } catch (e) { /* this is spec compliant */
+        rejectsRegex = true;
+      }
+    }
+    return rejectsRegex;
+  };
+
+  var main = function() {
+    var globals = (typeof global === 'undefined') ? self : global;
+    var global_isFinite = globals.isFinite;
+    var supportsDescriptors = !!Object.defineProperty && arePropertyDescriptorsSupported();
+    var startsWithIsCompliant = startsWithRejectsRegex();
+    var _slice = Array.prototype.slice;
+    var _indexOf = String.prototype.indexOf;
+    var _toString = Object.prototype.toString;
+    var _hasOwnProperty = Object.prototype.hasOwnProperty;
+
+    // Define configurable, writable and non-enumerable props
+    // if they don’t exist.
+    var defineProperties = function(object, map) {
+      Object.keys(map).forEach(function(name) {
+        var method = map[name];
+        if (name in object) return;
+        if (supportsDescriptors) {
+          Object.defineProperty(object, name, {
+            configurable: true,
+            enumerable: false,
+            writable: true,
+            value: method
+          });
+        } else {
+          object[name] = method;
+        }
+      });
+    };
+
+    // Simple shim for Object.create on ES3 browsers
+    // (unlike real shim, no attepmt to support `prototype===null`)
+    var create = Object.create || function(prototype, properties) {
+      function Type() {}
+      Type.prototype = prototype;
+      var object = new Type();
+      if (typeof properties !== "undefined")
+        defineProperties(object, properties);
+      return object;
+    };
+
+    // This is a private name in the es6 spec, equal to '[Symbol.iterator]'
+    // we're going to use an arbitrary _-prefixed name to make our shims
+    // work properly with each other, even though we don't have full Iterator
+    // support.  That is, `Array.from(map.keys())` will work, but we don't
+    // pretend to export a "real" Iterator interface.
+    var $iterator$ = (typeof Symbol === 'object' && Symbol.iterator) ||
+      '_es6shim_iterator_';
+    // Firefox ships a partial implementation using the name @@iterator.
+    // https://bugzilla.mozilla.org/show_bug.cgi?id=907077#c14
+    // So use that name if we detect it.
+    if (globals.Set && typeof new globals.Set()['@@iterator'] === 'function') {
+      $iterator$ = '@@iterator';
+    }
+    var addIterator = function(prototype, impl) {
+      if (!impl) { impl = function iterator() { return this; }; }
+      var o = {};
+      o[$iterator$] = impl;
+      defineProperties(prototype, o);
+    };
+
+    // taken directly from https://github.com/ljharb/is-arguments/blob/master/index.js
+    // can be replaced with require('is-arguments') if we ever use a build process instead
+    var isArguments = function isArguments(value) {
+      var str = _toString.call(value);
+      var result = str === '[object Arguments]';
+      if (!result) {
+        result = str !== '[object Array]' &&
+          value !== null &&
+          typeof value === 'object' &&
+          typeof value.length === 'number' &&
+          value.length >= 0 &&
+          _toString.call(value.callee) === '[object Function]';
+      }
+      return result;
+    };
+
+    var emulateES6construct = function(o) {
+      if (!ES.TypeIsObject(o)) throw new TypeError('bad object');
+      // es5 approximation to es6 subclass semantics: in es6, 'new Foo'
+      // would invoke Foo.@@create to allocation/initialize the new object.
+      // In es5 we just get the plain object.  So if we detect an
+      // uninitialized object, invoke o.constructor.@@create
+      if (!o._es6construct) {
+        if (o.constructor && ES.IsCallable(o.constructor['@@create'])) {
+          o = o.constructor['@@create'](o);
+        }
+        defineProperties(o, { _es6construct: true });
+      }
+      return o;
+    };
+
+    var ES = {
+      CheckObjectCoercible: function(x, optMessage) {
+        /* jshint eqnull:true */
+        if (x == null)
+          throw new TypeError(optMessage || ('Cannot call method on ' + x));
+        return x;
+      },
+
+      TypeIsObject: function(x) {
+        /* jshint eqnull:true */
+        // this is expensive when it returns false; use this function
+        // when you expect it to return true in the common case.
+        return x != null && Object(x) === x;
+      },
+
+      ToObject: function(o, optMessage) {
+        return Object(ES.CheckObjectCoercible(o, optMessage));
+      },
+
+      IsCallable: function(x) {
+        return typeof x === 'function' &&
+          // some versions of IE say that typeof /abc/ === 'function'
+          _toString.call(x) === '[object Function]';
+      },
+
+      ToInt32: function(x) {
+        return x >> 0;
+      },
+
+      ToUint32: function(x) {
+        return x >>> 0;
+      },
+
+      ToInteger: function(value) {
+        var number = +value;
+        if (Number.isNaN(number)) return 0;
+        if (number === 0 || !Number.isFinite(number)) return number;
+        return Math.sign(number) * Math.floor(Math.abs(number));
+      },
+
+      ToLength: function(value) {
+        var len = ES.ToInteger(value);
+        if (len <= 0) return 0; // includes converting -0 to +0
+        if (len > Number.MAX_SAFE_INTEGER) return Number.MAX_SAFE_INTEGER;
+        return len;
+      },
+
+      SameValue: function(a, b) {
+        if (a === b) {
+          // 0 === -0, but they are not identical.
+          if (a === 0) return 1 / a === 1 / b;
+          return true;
+        }
+        return Number.isNaN(a) && Number.isNaN(b);
+      },
+
+      SameValueZero: function(a, b) {
+        // same as SameValue except for SameValueZero(+0, -0) == true
+        return (a === b) || (Number.isNaN(a) && Number.isNaN(b));
+      },
+
+      IsIterable: function(o) {
+        return ES.TypeIsObject(o) &&
+          (o[$iterator$] !== undefined || isArguments(o));
+      },
+
+      GetIterator: function(o) {
+        if (isArguments(o)) {
+          // special case support for `arguments`
+          return new ArrayIterator(o, "value");
+        }
+        var it = o[$iterator$]();
+        if (!ES.TypeIsObject(it)) {
+          throw new TypeError('bad iterator');
+        }
+        return it;
+      },
+
+      IteratorNext: function(it) {
+        var result = (arguments.length > 1) ? it.next(arguments[1]) : it.next();
+        if (!ES.TypeIsObject(result)) {
+          throw new TypeError('bad iterator');
+        }
+        return result;
+      },
+
+      Construct: function(C, args) {
+        // CreateFromConstructor
+        var obj;
+        if (ES.IsCallable(C['@@create'])) {
+          obj = C['@@create']();
+        } else {
+          // OrdinaryCreateFromConstructor
+          obj = create(C.prototype || null);
+        }
+        // Mark that we've used the es6 construct path
+        // (see emulateES6construct)
+        defineProperties(obj, { _es6construct: true });
+        // Call the constructor.
+        var result = C.apply(obj, args);
+        return ES.TypeIsObject(result) ? result : obj;
+      }
+    };
+
+    var numberConversion = (function () {
+      // from https://github.com/inexorabletash/polyfill/blob/master/typedarray.js#L176-L266
+      // with permission and license, per https://twitter.com/inexorabletash/status/372206509540659200
+
+      function roundToEven(n) {
+        var w = Math.floor(n), f = n - w;
+        if (f < 0.5) {
+          return w;
+        }
+        if (f > 0.5) {
+          return w + 1;
+        }
+        return w % 2 ? w + 1 : w;
+      }
+
+      function packIEEE754(v, ebits, fbits) {
+        var bias = (1 << (ebits - 1)) - 1,
+          s, e, f, ln,
+          i, bits, str, bytes;
+
+        // Compute sign, exponent, fraction
+        if (v !== v) {
+          // NaN
+          // http://dev.w3.org/2006/webapi/WebIDL/#es-type-mapping
+          e = (1 << ebits) - 1;
+          f = Math.pow(2, fbits - 1);
+          s = 0;
+        } else if (v === Infinity || v === -Infinity) {
+          e = (1 << ebits) - 1;
+          f = 0;
+          s = (v < 0) ? 1 : 0;
+        } else if (v === 0) {
+          e = 0;
+          f = 0;
+          s = (1 / v === -Infinity) ? 1 : 0;
+        } else {
+          s = v < 0;
+          v = Math.abs(v);
+
+          if (v >= Math.pow(2, 1 - bias)) {
+            e = Math.min(Math.floor(Math.log(v) / Math.LN2), 1023);
+            f = roundToEven(v / Math.pow(2, e) * Math.pow(2, fbits));
+            if (f / Math.pow(2, fbits) >= 2) {
+              e = e + 1;
+              f = 1;
+            }
+            if (e > bias) {
+              // Overflow
+              e = (1 << ebits) - 1;
+              f = 0;
+            } else {
+              // Normal
+              e = e + bias;
+              f = f - Math.pow(2, fbits);
+            }
+          } else {
+            // Subnormal
+            e = 0;
+            f = roundToEven(v / Math.pow(2, 1 - bias - fbits));
+          }
+        }
+
+        // Pack sign, exponent, fraction
+        bits = [];
+        for (i = fbits; i; i -= 1) {
+          bits.push(f % 2 ? 1 : 0);
+          f = Math.floor(f / 2);
+        }
+        for (i = ebits; i; i -= 1) {
+          bits.push(e % 2 ? 1 : 0);
+          e = Math.floor(e / 2);
+        }
+        bits.push(s ? 1 : 0);
+        bits.reverse();
+        str = bits.join('');
+
+        // Bits to bytes
+        bytes = [];
+        while (str.length) {
+          bytes.push(parseInt(str.substring(0, 8), 2));
+          str = str.substring(8);
+        }
+        return bytes;
+      }
+
+      function unpackIEEE754(bytes, ebits, fbits) {
+        // Bytes to bits
+        var bits = [], i, j, b, str,
+            bias, s, e, f;
+
+        for (i = bytes.length; i; i -= 1) {
+          b = bytes[i - 1];
+          for (j = 8; j; j -= 1) {
+            bits.push(b % 2 ? 1 : 0);
+            b = b >> 1;
+          }
+        }
+        bits.reverse();
+        str = bits.join('');
+
+        // Unpack sign, exponent, fraction
+        bias = (1 << (ebits - 1)) - 1;
+        s = parseInt(str.substring(0, 1), 2) ? -1 : 1;
+        e = parseInt(str.substring(1, 1 + ebits), 2);
+        f = parseInt(str.substring(1 + ebits), 2);
+
+        // Produce number
+        if (e === (1 << ebits) - 1) {
+          return f !== 0 ? NaN : s * Infinity;
+        } else if (e > 0) {
+          // Normalized
+          return s * Math.pow(2, e - bias) * (1 + f / Math.pow(2, fbits));
+        } else if (f !== 0) {
+          // Denormalized
+          return s * Math.pow(2, -(bias - 1)) * (f / Math.pow(2, fbits));
+        } else {
+          return s < 0 ? -0 : 0;
+        }
+      }
+
+      function unpackFloat64(b) { return unpackIEEE754(b, 11, 52); }
+      function packFloat64(v) { return packIEEE754(v, 11, 52); }
+      function unpackFloat32(b) { return unpackIEEE754(b, 8, 23); }
+      function packFloat32(v) { return packIEEE754(v, 8, 23); }
+
+      var conversions = {
+        toFloat32: function (num) { return unpackFloat32(packFloat32(num)); }
+      };
+      if (typeof Float32Array !== 'undefined') {
+        var float32array = new Float32Array(1);
+        conversions.toFloat32 = function (num) {
+          float32array[0] = num;
+          return float32array[0];
+        };
+      }
+      return conversions;
+    }());
+
+    defineProperties(String, {
+      fromCodePoint: function() {
+        var points = _slice.call(arguments, 0, arguments.length);
+        var result = [];
+        var next;
+        for (var i = 0, length = points.length; i < length; i++) {
+          next = Number(points[i]);
+          if (!ES.SameValue(next, ES.ToInteger(next)) ||
+              next < 0 || next > 0x10FFFF) {
+            throw new RangeError('Invalid code point ' + next);
+          }
+
+          if (next < 0x10000) {
+            result.push(String.fromCharCode(next));
+          } else {
+            next -= 0x10000;
+            result.push(String.fromCharCode((next >> 10) + 0xD800));
+            result.push(String.fromCharCode((next % 0x400) + 0xDC00));
+          }
+        }
+        return result.join('');
+      },
+
+      raw: function(callSite) { // raw.length===1
+        var substitutions = _slice.call(arguments, 1, arguments.length);
+        var cooked = ES.ToObject(callSite, 'bad callSite');
+        var rawValue = cooked.raw;
+        var raw = ES.ToObject(rawValue, 'bad raw value');
+        var len = Object.keys(raw).length;
+        var literalsegments = ES.ToLength(len);
+        if (literalsegments === 0) {
+          return '';
+        }
+
+        var stringElements = [];
+        var nextIndex = 0;
+        var nextKey, next, nextSeg, nextSub;
+        while (nextIndex < literalsegments) {
+          nextKey = String(nextIndex);
+          next = raw[nextKey];
+          nextSeg = String(next);
+          stringElements.push(nextSeg);
+          if (nextIndex + 1 >= literalsegments) {
+            break;
+          }
+          next = substitutions[nextKey];
+          if (next === undefined) {
+            break;
+          }
+          nextSub = String(next);
+          stringElements.push(nextSub);
+          nextIndex++;
+        }
+        return stringElements.join('');
+      }
+    });
+
+    var StringShims = {
+      // Fast repeat, uses the `Exponentiation by squaring` algorithm.
+      // Perf: http://jsperf.com/string-repeat2/2
+      repeat: (function() {
+        var repeat = function(s, times) {
+          if (times < 1) return '';
+          if (times % 2) return repeat(s, times - 1) + s;
+          var half = repeat(s, times / 2);
+          return half + half;
+        };
+
+        return function(times) {
+          var thisStr = String(ES.CheckObjectCoercible(this));
+          times = ES.ToInteger(times);
+          if (times < 0 || times === Infinity) {
+            throw new RangeError('Invalid String#repeat value');
+          }
+          return repeat(thisStr, times);
+        };
+      })(),
+
+      startsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "startsWith" with a regex');
+        searchStr = String(searchStr);
+        var startArg = arguments.length > 1 ? arguments[1] : undefined;
+        var start = Math.max(ES.ToInteger(startArg), 0);
+        return thisStr.slice(start, start + searchStr.length) === searchStr;
+      },
+
+      endsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "endsWith" with a regex');
+        searchStr = String(searchStr);
+        var thisLen = thisStr.length;
+        var posArg = arguments.length > 1 ? arguments[1] : undefined;
+        var pos = posArg === undefined ? thisLen : ES.ToInteger(posArg);
+        var end = Math.min(Math.max(pos, 0), thisLen);
+        return thisStr.slice(end - searchStr.length, end) === searchStr;
+      },
+
+      contains: function(searchString) {
+        var position = arguments.length > 1 ? arguments[1] : undefined;
+        // Somehow this trick makes method 100% compat with the spec.
+        return _indexOf.call(this, searchString, position) !== -1;
+      },
+
+      codePointAt: function(pos) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        var position = ES.ToInteger(pos);
+        var length = thisStr.length;
+        if (position < 0 || position >= length) return undefined;
+        var first = thisStr.charCodeAt(position);
+        var isEnd = (position + 1 === length);
+        if (first < 0xD800 || first > 0xDBFF || isEnd) return first;
+        var second = thisStr.charCodeAt(position + 1);
+        if (second < 0xDC00 || second > 0xDFFF) return first;
+        return ((first - 0xD800) * 1024) + (second - 0xDC00) + 0x10000;
+      }
+    };
+    defineProperties(String.prototype, StringShims);
+
+    // see https://people.mozilla.org/~jorendorff/es6-draft.html#sec-string.prototype-@@iterator
+    var StringIterator = function(s) {
+      this._s = String(ES.CheckObjectCoercible(s));
+      this._i = 0;
+    };
+    StringIterator.prototype.next = function() {
+      var s = this._s, i = this._i;
+      if (s===undefined || i >= s.length) {
+        this._s = undefined;
+        return { value: undefined, done: true };
+      }
+      var first = s.charCodeAt(i), second, len;
+      if (first < 0xD800 || first > 0xDBFF || (i+1) == s.length) {
+        len = 1;
+      } else {
+        second = s.charCodeAt(i+1);
+        len = (second < 0xDC00 || second > 0xDFFF) ? 1 : 2;
+      }
+      this._i = i + len;
+      return { value: s.substr(i, len), done: false };
+    };
+    addIterator(StringIterator.prototype);
+    addIterator(String.prototype, function() {
+      return new StringIterator(this);
+    });
+
+    if (!startsWithIsCompliant) {
+      // Firefox has a noncompliant startsWith implementation
+      String.prototype.startsWith = StringShims.startsWith;
+      String.prototype.endsWith = StringShims.endsWith;
+    }
+
+    defineProperties(Array, {
+      from: function(iterable) {
+        var mapFn = arguments.length > 1 ? arguments[1] : undefined;
+        var thisArg = arguments.length > 2 ? arguments[2] : undefined;
+
+        var list = ES.ToObject(iterable, 'bad iterable');
+        if (mapFn !== undefined && !ES.IsCallable(mapFn)) {
+          throw new TypeError('Array.from: when provided, the second argument must be a function');
+        }
+
+        var usingIterator = ES.IsIterable(list);
+        // does the spec really mean that Arrays should use ArrayIterator?
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2416
+        //if (Array.isArray(list)) { usingIterator=false; }
+        var length = usingIterator ? 0 : ES.ToLength(list.length);
+        var result = ES.IsCallable(this) ? Object(usingIterator ? new this() : new this(length)) : new Array(length);
+        var it = usingIterator ? ES.GetIterator(list) : null;
+        var value;
+
+        for (var i = 0; usingIterator || (i < length); i++) {
+          if (usingIterator) {
+            value = ES.IteratorNext(it);
+            if (value.done) {
+              length = i;
+              break;
+            }
+            value = value.value;
+          } else {
+            value = list[i];
+          }
+          if (mapFn !== undefined) {
+            result[i] = thisArg ? mapFn.call(thisArg, value) : mapFn(value);
+          } else {
+            result[i] = value;
+          }
+        }
+
+        result.length = length;
+        return result;
+      },
+
+      of: function() {
+        return Array.from(arguments);
+      }
+    });
+
+    defineProperties(globals, {
+      ArrayIterator: function(array, kind) {
+        this.i = 0;
+        this.array = array;
+        this.kind = kind;
+      }
+    });
+
+    defineProperties(ArrayIterator.prototype, {
+      next: function() {
+        var i = this.i, array = this.array;
+        if (i === undefined || this.kind === undefined) {
+          throw new TypeError('Not an ArrayIterator');
+        }
+        if (array!==undefined) {
+          var len = ES.ToLength(array.length);
+          for (; i < len; i++) {
+            var kind = this.kind;
+            var retval;
+            if (kind === "key") {
+              retval = i;
+            } else if (kind === "value") {
+              retval = array[i];
+            } else if (kind === "entry") {
+              retval = [i, array[i]];
+            }
+            this.i = i + 1;
+            return { value: retval, done: false };
+          }
+        }
+        this.array = undefined;
+        return { value: undefined, done: true };
+      }
+    });
+    addIterator(ArrayIterator.prototype);
+
+    defineProperties(Array.prototype, {
+      copyWithin: function(target, start) {
+        var end = arguments[2]; // copyWithin.length must be 2
+        var o = ES.ToObject(this);
+        var len = ES.ToLength(o.length);
+        target = ES.ToInteger(target);
+        start = ES.ToInteger(start);
+        var to = target < 0 ? Math.max(len + target, 0) : Math.min(target, len);
+        var from = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+        end = (end===undefined) ? len : ES.ToInteger(end);
+        var fin = end < 0 ? Math.max(len + end, 0) : Math.min(end, len);
+        var count = Math.min(fin - from, len - to);
+        var direction = 1;
+        if (from < to && to < (from + count)) {
+          direction = -1;
+          from += count - 1;
+          to += count - 1;
+        }
+        while (count > 0) {
+          if (_hasOwnProperty.call(o, from)) {
+            o[to] = o[from];
+          } else {
+            delete o[from];
+          }
+          from += direction;
+          to += direction;
+          count -= 1;
+        }
+        return o;
+      },
+
+      fill: function(value) {
+        var start = arguments[1], end = arguments[2]; // fill.length===1
+        var O = ES.ToObject(this);
+        var len = ES.ToLength(O.length);
+        start = ES.ToInteger(start===undefined ? 0 : start);
+        end = ES.ToInteger(end===undefined ? len : end);
+
+        var relativeStart = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+
+        for (var i = relativeStart; i < len && i < end; ++i) {
+          O[i] = value;
+        }
+        return O;
+      },
+
+      find: function(predicate) {
+        var list = ES.ToObject(this);
+        var length = ES.ToLength(list.length);
+        if (!ES.IsCallable(predicate)) {
+          throw new TypeError('Array#find: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0, value; i < length; i++) {
+          if (i in list) {
+            value = list[i];
+            if (predicate.call(thisArg, value, i, list)) return value;
+          }
+        }
+        return undefined;
+      },
+
+      findIndex: function(predicate) {
+        var list = ES.ToObject(this);
+        var length = ES.ToLength(list.length);
+        if (!ES.IsCallable(predicate)) {
+          throw new TypeError('Array#findIndex: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0; i < length; i++) {
+          if (i in list) {
+            if (predicate.call(thisArg, list[i], i, list)) return i;
+          }
+        }
+        return -1;
+      },
+
+      keys: function() {
+        return new ArrayIterator(this, "key");
+      },
+
+      values: function() {
+        return new ArrayIterator(this, "value");
+      },
+
+      entries: function() {
+        return new ArrayIterator(this, "entry");
+      }
+    });
+    addIterator(Array.prototype, function() { return this.values(); });
+    // Chrome defines keys/values/entries on Array, but doesn't give us
+    // any way to identify its iterator.  So add our own shimmed field.
+    if (Object.getPrototypeOf) {
+      addIterator(Object.getPrototypeOf([].values()));
+    }
+
+    var maxSafeInteger = Math.pow(2, 53) - 1;
+    defineProperties(Number, {
+      MAX_SAFE_INTEGER: maxSafeInteger,
+      MIN_SAFE_INTEGER: -maxSafeInteger,
+      EPSILON: 2.220446049250313e-16,
+
+      parseInt: globals.parseInt,
+      parseFloat: globals.parseFloat,
+
+      isFinite: function(value) {
+        return typeof value === 'number' && global_isFinite(value);
+      },
+
+      isInteger: function(value) {
+        return typeof value === 'number' &&
+          !Number.isNaN(value) &&
+          Number.isFinite(value) &&
+          ES.ToInteger(value) === value;
+      },
+
+      isSafeInteger: function(value) {
+        return Number.isInteger(value) && Math.abs(value) <= Number.MAX_SAFE_INTEGER;
+      },
+
+      isNaN: function(value) {
+        // NaN !== NaN, but they are identical.
+        // NaNs are the only non-reflexive value, i.e., if x !== x,
+        // then x is NaN.
+        // isNaN is broken: it converts its argument to number, so
+        // isNaN('foo') => true
+        return value !== value;
+      }
+
+    });
+
+    if (supportsDescriptors) {
+      defineProperties(Object, {
+        getPropertyDescriptor: function(subject, name) {
+          var pd = Object.getOwnPropertyDescriptor(subject, name);
+          var proto = Object.getPrototypeOf(subject);
+          while (pd === undefined && proto !== null) {
+            pd = Object.getOwnPropertyDescriptor(proto, name);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return pd;
+        },
+
+        getPropertyNames: function(subject) {
+          var result = Object.getOwnPropertyNames(subject);
+          var proto = Object.getPrototypeOf(subject);
+
+          var addProperty = function(property) {
+            if (result.indexOf(property) === -1) {
+              result.push(property);
+            }
+          };
+
+          while (proto !== null) {
+            Object.getOwnPropertyNames(proto).forEach(addProperty);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return result;
+        }
+      });
+
+      defineProperties(Object, {
+        // 19.1.3.1
+        assign: function(target, source) {
+          if (!ES.TypeIsObject(target)) {
+            throw new TypeError('target must be an object');
+          }
+          return Array.prototype.reduce.call(arguments, function(target, source) {
+            if (!ES.TypeIsObject(source)) {
+              throw new TypeError('source must be an object');
+            }
+            return Object.keys(source).reduce(function(target, key) {
+              target[key] = source[key];
+              return target;
+            }, target);
+          });
+        },
+
+        getOwnPropertyKeys: function(subject) {
+          return Object.keys(subject);
+        },
+
+        is: function(a, b) {
+          return ES.SameValue(a, b);
+        },
+
+        // 19.1.3.9
+        // shim from https://gist.github.com/WebReflection/5593554
+        setPrototypeOf: (function(Object, magic) {
+          var set;
+
+          var checkArgs = function(O, proto) {
+            if (!ES.TypeIsObject(O)) {
+              throw new TypeError('cannot set prototype on a non-object');
+            }
+            if (!(proto===null || ES.TypeIsObject(proto))) {
+              throw new TypeError('can only set prototype to an object or null'+proto);
+            }
+          };
+
+          var setPrototypeOf = function(O, proto) {
+            checkArgs(O, proto);
+            set.call(O, proto);
+            return O;
+          };
+
+          try {
+            // this works already in Firefox and Safari
+            set = Object.getOwnPropertyDescriptor(Object.prototype, magic).set;
+            set.call({}, null);
+          } catch (e) {
+            if (Object.prototype !== {}[magic]) {
+              // IE < 11 cannot be shimmed
+              return;
+            }
+            // probably Chrome or some old Mobile stock browser
+            set = function(proto) {
+              this[magic] = proto;
+            };
+            // please note that this will **not** work
+            // in those browsers that do not inherit
+            // __proto__ by mistake from Object.prototype
+            // in these cases we should probably throw an error
+            // or at least be informed about the issue
+            setPrototypeOf.polyfill = setPrototypeOf(
+              setPrototypeOf({}, null),
+              Object.prototype
+            ) instanceof Object;
+            // setPrototypeOf.polyfill === true means it works as meant
+            // setPrototypeOf.polyfill === false means it's not 100% reliable
+            // setPrototypeOf.polyfill === undefined
+            // or
+            // setPrototypeOf.polyfill ==  null means it's not a polyfill
+            // which means it works as expected
+            // we can even delete Object.prototype.__proto__;
+          }
+          return setPrototypeOf;
+        })(Object, '__proto__')
+      });
+    }
+
+    // Workaround bug in Opera 12 where setPrototypeOf(x, null) doesn't work,
+    // but Object.create(null) does.
+    if (Object.setPrototypeOf && Object.getPrototypeOf &&
+        Object.getPrototypeOf(Object.setPrototypeOf({}, null)) !== null &&
+        Object.getPrototypeOf(Object.create(null)) === null) {
+      (function() {
+        var FAKENULL = Object.create(null);
+        var gpo = Object.getPrototypeOf, spo = Object.setPrototypeOf;
+        Object.getPrototypeOf = function(o) {
+          var result = gpo(o);
+          return result === FAKENULL ? null : result;
+        };
+        Object.setPrototypeOf = function(o, p) {
+          if (p === null) { p = FAKENULL; }
+          return spo(o, p);
+        };
+        Object.setPrototypeOf.polyfill = false;
+      })();
+    }
+
+    try {
+      Object.keys('foo');
+    } catch (e) {
+      var originalObjectKeys = Object.keys;
+      Object.keys = function (obj) {
+        return originalObjectKeys(ES.ToObject(obj));
+      };
+    }
+
+    var MathShims = {
+      acosh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < 1) return NaN;
+        if (value === 1) return 0;
+        if (value === Infinity) return value;
+        return Math.log(value + Math.sqrt(value * value - 1));
+      },
+
+      asinh: function(value) {
+        value = Number(value);
+        if (value === 0 || !global_isFinite(value)) {
+          return value;
+        }
+        return value < 0 ? -Math.asinh(-value) : Math.log(value + Math.sqrt(value * value + 1));
+      },
+
+      atanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < -1 || value > 1) {
+          return NaN;
+        }
+        if (value === -1) return -Infinity;
+        if (value === 1) return Infinity;
+        if (value === 0) return value;
+        return 0.5 * Math.log((1 + value) / (1 - value));
+      },
+
+      cbrt: function(value) {
+        value = Number(value);
+        if (value === 0) return value;
+        var negate = value < 0, result;
+        if (negate) value = -value;
+        result = Math.pow(value, 1/3);
+        return negate ? -result : result;
+      },
+
+      clz32: function(value) {
+        // See https://bugs.ecmascript.org/show_bug.cgi?id=2465
+        value = Number(value);
+        if (Number.isNaN(value)) return NaN;
+        var number = ES.ToUint32(value);
+        if (number === 0) {
+          return 32;
+        }
+        return 32 - (number).toString(2).length;
+      },
+
+      cosh: function(value) {
+        value = Number(value);
+        if (value === 0) return 1; // +0 or -0
+        if (Number.isNaN(value)) return NaN;
+        if (!global_isFinite(value)) return Infinity;
+        if (value < 0) value = -value;
+        if (value > 21) return Math.exp(value) / 2;
+        return (Math.exp(value) + Math.exp(-value)) / 2;
+      },
+
+      expm1: function(value) {
+        value = Number(value);
+        if (value === -Infinity) return -1;
+        if (!global_isFinite(value) || value === 0) return value;
+        return Math.exp(value) - 1;
+      },
+
+      hypot: function(x, y) {
+        var anyNaN = false;
+        var allZero = true;
+        var anyInfinity = false;
+        var numbers = [];
+        Array.prototype.every.call(arguments, function(arg) {
+          var num = Number(arg);
+          if (Number.isNaN(num)) anyNaN = true;
+          else if (num === Infinity || num === -Infinity) anyInfinity = true;
+          else if (num !== 0) allZero = false;
+          if (anyInfinity) {
+            return false;
+          } else if (!anyNaN) {
+            numbers.push(Math.abs(num));
+          }
+          return true;
+        });
+        if (anyInfinity) return Infinity;
+        if (anyNaN) return NaN;
+        if (allZero) return 0;
+
+        numbers.sort(function (a, b) { return b - a; });
+        var largest = numbers[0];
+        var divided = numbers.map(function (number) { return number / largest; });
+        var sum = divided.reduce(function (sum, number) { return sum += number * number; }, 0);
+        return largest * Math.sqrt(sum);
+      },
+
+      log2: function(value) {
+        return Math.log(value) * Math.LOG2E;
+      },
+
+      log10: function(value) {
+        return Math.log(value) * Math.LOG10E;
+      },
+
+      log1p: function(value) {
+        value = Number(value);
+        if (value < -1 || Number.isNaN(value)) return NaN;
+        if (value === 0 || value === Infinity) return value;
+        if (value === -1) return -Infinity;
+        var result = 0;
+        var n = 50;
+
+        if (value < 0 || value > 1) return Math.log(1 + value);
+        for (var i = 1; i < n; i++) {
+          if ((i % 2) === 0) {
+            result -= Math.pow(value, i) / i;
+          } else {
+            result += Math.pow(value, i) / i;
+          }
+        }
+
+        return result;
+      },
+
+      sign: function(value) {
+        var number = +value;
+        if (number === 0) return number;
+        if (Number.isNaN(number)) return number;
+        return number < 0 ? -1 : 1;
+      },
+
+      sinh: function(value) {
+        value = Number(value);
+        if (!global_isFinite(value) || value === 0) return value;
+        return (Math.exp(value) - Math.exp(-value)) / 2;
+      },
+
+      tanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value === 0) return value;
+        if (value === Infinity) return 1;
+        if (value === -Infinity) return -1;
+        return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+      },
+
+      trunc: function(value) {
+        var number = Number(value);
+        return number < 0 ? -Math.floor(-number) : Math.floor(number);
+      },
+
+      imul: function(x, y) {
+        // taken from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
+        var ah  = (x >>> 16) & 0xffff;
+        var al = x & 0xffff;
+        var bh  = (y >>> 16) & 0xffff;
+        var bl = y & 0xffff;
+        // the shift by 0 fixes the sign on the high part
+        // the final |0 converts the unsigned value into a signed value
+        return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);
+      },
+
+      fround: function(x) {
+        if (x === 0 || x === Infinity || x === -Infinity || Number.isNaN(x)) {
+          return x;
+        }
+        var num = Number(x);
+        return numberConversion.toFloat32(num);
+      }
+    };
+    defineProperties(Math, MathShims);
+
+    if (Math.imul(0xffffffff, 5) !== -5) {
+      // Safari 6.1, at least, reports "0" for this value
+      Math.imul = MathShims.imul;
+    }
+
+    // Promises
+    // Simplest possible implementation; use a 3rd-party library if you
+    // want the best possible speed and/or long stack traces.
+    var PromiseShim = (function() {
+
+      var Promise, Promise$prototype;
+
+      ES.IsPromise = function(promise) {
+        if (!ES.TypeIsObject(promise)) {
+          return false;
+        }
+        if (!promise._promiseConstructor) {
+          // _promiseConstructor is a bit more unique than _status, so we'll
+          // check that instead of the [[PromiseStatus]] internal field.
+          return false;
+        }
+        if (promise._status === undefined) {
+          return false; // uninitialized
+        }
+        return true;
+      };
+
+      // "PromiseCapability" in the spec is what most promise implementations
+      // call a "deferred".
+      var PromiseCapability = function(C) {
+        if (!ES.IsCallable(C)) {
+          throw new TypeError('bad promise constructor');
+        }
+        var capability = this;
+        var resolver = function(resolve, reject) {
+          capability.resolve = resolve;
+          capability.reject = reject;
+        };
+        capability.promise = ES.Construct(C, [resolver]);
+        // see https://bugs.ecmascript.org/show_bug.cgi?id=2478
+        if (!capability.promise._es6construct) {
+          throw new TypeError('bad promise constructor');
+        }
+        if (!(ES.IsCallable(capability.resolve) &&
+              ES.IsCallable(capability.reject))) {
+          throw new TypeError('bad promise constructor');
+        }
+      };
+
+      // find an appropriate setImmediate-alike
+      var setTimeout = globals.setTimeout;
+      var makeZeroTimeout;
+      if (typeof window !== 'undefined' && ES.IsCallable(window.postMessage)) {
+        makeZeroTimeout = function() {
+          // from http://dbaron.org/log/20100309-faster-timeouts
+          var timeouts = [];
+          var messageName = "zero-timeout-message";
+          var setZeroTimeout = function(fn) {
+            timeouts.push(fn);
+            window.postMessage(messageName, "*");
+          };
+          var handleMessage = function(event) {
+            if (event.source == window && event.data == messageName) {
+              event.stopPropagation();
+              if (timeouts.length === 0) { return; }
+              var fn = timeouts.shift();
+              fn();
+            }
+          };
+          window.addEventListener("message", handleMessage, true);
+          return setZeroTimeout;
+        };
+      }
+      var makePromiseAsap = function() {
+        // An efficient task-scheduler based on a pre-existing Promise
+        // implementation, which we can use even if we override the
+        // global Promise below (in order to workaround bugs)
+        // https://github.com/Raynos/observ-hash/issues/2#issuecomment-35857671
+        var P = globals.Promise;
+        return P && P.resolve && function(task) {
+          return P.resolve().then(task);
+        };
+      };
+      var enqueue = ES.IsCallable(globals.setImmediate) ?
+        globals.setImmediate.bind(globals) :
+        typeof process === 'object' && process.nextTick ? process.nextTick :
+        makePromiseAsap() ||
+        (ES.IsCallable(makeZeroTimeout) ? makeZeroTimeout() :
+        function(task) { setTimeout(task, 0); }); // fallback
+
+      var triggerPromiseReactions = function(reactions, x) {
+        reactions.forEach(function(reaction) {
+          enqueue(function() {
+            // PromiseReactionTask
+            var handler = reaction.handler;
+            var capability = reaction.capability;
+            var resolve = capability.resolve;
+            var reject = capability.reject;
+            try {
+              var result = handler(x);
+              if (result === capability.promise) {
+                throw new TypeError('self resolution');
+              }
+              var updateResult =
+                updatePromiseFromPotentialThenable(result, capability);
+              if (!updateResult) {
+                resolve(result);
+              }
+            } catch (e) {
+              reject(e);
+            }
+          });
+        });
+      };
+
+      var updatePromiseFromPotentialThenable = function(x, capability) {
+        if (!ES.TypeIsObject(x)) {
+          return false;
+        }
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          var then = x.then; // only one invocation of accessor
+          if (!ES.IsCallable(then)) { return false; }
+          then.call(x, resolve, reject);
+        } catch(e) {
+          reject(e);
+        }
+        return true;
+      };
+
+      var promiseResolutionHandler = function(promise, onFulfilled, onRejected){
+        return function(x) {
+          if (x === promise) {
+            return onRejected(new TypeError('self resolution'));
+          }
+          var C = promise._promiseConstructor;
+          var capability = new PromiseCapability(C);
+          var updateResult = updatePromiseFromPotentialThenable(x, capability);
+          if (updateResult) {
+            return capability.promise.then(onFulfilled, onRejected);
+          } else {
+            return onFulfilled(x);
+          }
+        };
+      };
+
+      Promise = function(resolver) {
+        var promise = this;
+        promise = emulateES6construct(promise);
+        if (!promise._promiseConstructor) {
+          // we use _promiseConstructor as a stand-in for the internal
+          // [[PromiseStatus]] field; it's a little more unique.
+          throw new TypeError('bad promise');
+        }
+        if (promise._status !== undefined) {
+          throw new TypeError('promise already initialized');
+        }
+        // see https://bugs.ecmascript.org/show_bug.cgi?id=2482
+        if (!ES.IsCallable(resolver)) {
+          throw new TypeError('not a valid resolver');
+        }
+        promise._status = 'unresolved';
+        promise._resolveReactions = [];
+        promise._rejectReactions = [];
+
+        var resolve = function(resolution) {
+          if (promise._status !== 'unresolved') { return; }
+          var reactions = promise._resolveReactions;
+          promise._result = resolution;
+          promise._resolveReactions = undefined;
+          promise._rejectReactions = undefined;
+          promise._status = 'has-resolution';
+          triggerPromiseReactions(reactions, resolution);
+        };
+        var reject = function(reason) {
+          if (promise._status !== 'unresolved') { return; }
+          var reactions = promise._rejectReactions;
+          promise._result = reason;
+          promise._resolveReactions = undefined;
+          promise._rejectReactions = undefined;
+          promise._status = 'has-rejection';
+          triggerPromiseReactions(reactions, reason);
+        };
+        try {
+          resolver(resolve, reject);
+        } catch (e) {
+          reject(e);
+        }
+        return promise;
+      };
+      Promise$prototype = Promise.prototype;
+      defineProperties(Promise, {
+        '@@create': function(obj) {
+          var constructor = this;
+          // AllocatePromise
+          // The `obj` parameter is a hack we use for es5
+          // compatibility.
+          var prototype = constructor.prototype || Promise$prototype;
+          obj = obj || create(prototype);
+          defineProperties(obj, {
+            _status: undefined,
+            _result: undefined,
+            _resolveReactions: undefined,
+            _rejectReactions: undefined,
+            _promiseConstructor: undefined
+          });
+          obj._promiseConstructor = constructor;
+          return obj;
+        }
+      });
+
+      var _promiseAllResolver = function(index, values, capability, remaining) {
+        var done = false;
+        return function(x) {
+          if (done) { return; } // protect against being called multiple times
+          done = true;
+          values[index] = x;
+          if ((--remaining.count) === 0) {
+            var resolve = capability.resolve;
+            resolve(values); // call w/ this===undefined
+          }
+        };
+      };
+
+      Promise.all = function(iterable) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          if (!ES.IsIterable(iterable)) {
+            throw new TypeError('bad iterable');
+          }
+          var it = ES.GetIterator(iterable);
+          var values = [], remaining = { count: 1 };
+          for (var index = 0; ; index++) {
+            var next = ES.IteratorNext(it);
+            if (next.done) {
+              break;
+            }
+            var nextPromise = C.resolve(next.value);
+            var resolveElement = _promiseAllResolver(
+              index, values, capability, remaining
+            );
+            remaining.count++;
+            nextPromise.then(resolveElement, capability.reject);
+          }
+          if ((--remaining.count) === 0) {
+            resolve(values); // call w/ this===undefined
+          }
+        } catch (e) {
+          reject(e);
+        }
+        return capability.promise;
+      };
+
+      Promise.race = function(iterable) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          if (!ES.IsIterable(iterable)) {
+            throw new TypeError('bad iterable');
+          }
+          var it = ES.GetIterator(iterable);
+          while (true) {
+            var next = ES.IteratorNext(it);
+            if (next.done) {
+              // If iterable has no items, resulting promise will never
+              // resolve; see:
+              // https://github.com/domenic/promises-unwrapping/issues/75
+              // https://bugs.ecmascript.org/show_bug.cgi?id=2515
+              break;
+            }
+            var nextPromise = C.resolve(next.value);
+            nextPromise.then(resolve, reject);
+          }
+        } catch (e) {
+          reject(e);
+        }
+        return capability.promise;
+      };
+
+      Promise.reject = function(reason) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var reject = capability.reject;
+        reject(reason); // call with this===undefined
+        return capability.promise;
+      };
+
+      Promise.resolve = function(v) {
+        var C = this;
+        if (ES.IsPromise(v)) {
+          var constructor = v._promiseConstructor;
+          if (constructor === C) { return v; }
+        }
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        resolve(v); // call with this===undefined
+        return capability.promise;
+      };
+
+      Promise.prototype['catch'] = function( onRejected ) {
+        return this.then(undefined, onRejected);
+      };
+
+      Promise.prototype.then = function( onFulfilled, onRejected ) {
+        var promise = this;
+        if (!ES.IsPromise(promise)) { throw new TypeError('not a promise'); }
+        // this.constructor not this._promiseConstructor; see
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2513
+        var C = this.constructor;
+        var capability = new PromiseCapability(C);
+        if (!ES.IsCallable(onRejected)) {
+          onRejected = function(e) { throw e; };
+        }
+        if (!ES.IsCallable(onFulfilled)) {
+          onFulfilled = function(x) { return x; };
+        }
+        var resolutionHandler =
+          promiseResolutionHandler(promise, onFulfilled, onRejected);
+        var resolveReaction =
+          { capability: capability, handler: resolutionHandler };
+        var rejectReaction =
+          { capability: capability, handler: onRejected };
+        switch (promise._status) {
+        case 'unresolved':
+          promise._resolveReactions.push(resolveReaction);
+          promise._rejectReactions.push(rejectReaction);
+          break;
+        case 'has-resolution':
+          triggerPromiseReactions([resolveReaction], promise._result);
+          break;
+        case 'has-rejection':
+          triggerPromiseReactions([rejectReaction], promise._result);
+          break;
+        default:
+          throw new TypeError('unexpected');
+        }
+        return capability.promise;
+      };
+
+      return Promise;
+    })();
+    // export the Promise constructor.
+    defineProperties(globals, { Promise: PromiseShim });
+    // In Chrome 33 (and thereabouts) Promise is defined, but the
+    // implementation is buggy in a number of ways.  Let's check subclassing
+    // support to see if we have a buggy implementation.
+    var promiseSupportsSubclassing = supportsSubclassing(globals.Promise, function(S) {
+      return S.resolve(42) instanceof S;
+    });
+    var promiseIgnoresNonFunctionThenCallbacks = (function () {
+      try {
+        Promise.reject(42).then(null,5).then(null, function () {});
+        return true;
+      } catch (ex) {
+        return false;
+      }
+    }());
+    if (!promiseSupportsSubclassing || !promiseIgnoresNonFunctionThenCallbacks) {
+      globals.Promise = PromiseShim;
+    }
+
+    // Map and Set require a true ES5 environment
+    if (supportsDescriptors) {
+
+      var fastkey = function fastkey(key) {
+        var type = typeof key;
+        if (type === 'string') {
+          return '$' + key;
+        } else if (type === 'number') {
+          // note that -0 will get coerced to "0" when used as a property key
+          return key;
+        }
+        return null;
+      };
+
+      var emptyObject = function emptyObject() {
+        // accomodate some older not-quite-ES5 browsers
+        return Object.create ? Object.create(null) : {};
+      };
+
+      var collectionShims = {
+        Map: (function() {
+
+          var empty = {};
+
+          function MapEntry(key, value) {
+            this.key = key;
+            this.value = value;
+            this.next = null;
+            this.prev = null;
+          }
+
+          MapEntry.prototype.isRemoved = function() {
+            return this.key === empty;
+          };
+
+          function MapIterator(map, kind) {
+            this.head = map._head;
+            this.i = this.head;
+            this.kind = kind;
+          }
+
+          MapIterator.prototype = {
+            next: function() {
+              var i = this.i, kind = this.kind, head = this.head, result;
+              if (this.i === undefined) {
+                return { value: undefined, done: true };
+              }
+              while (i.isRemoved() && i !== head) {
+                // back up off of removed entries
+                i = i.prev;
+              }
+              // advance to next unreturned element.
+              while (i.next !== head) {
+                i = i.next;
+                if (!i.isRemoved()) {
+                  if (kind === "key") {
+                    result = i.key;
+                  } else if (kind === "value") {
+                    result = i.value;
+                  } else {
+                    result = [i.key, i.value];
+                  }
+                  this.i = i;
+                  return { value: result, done: false };
+                }
+              }
+              // once the iterator is done, it is done forever.
+              this.i = undefined;
+              return { value: undefined, done: true };
+            }
+          };
+          addIterator(MapIterator.prototype);
+
+          function Map() {
+            var map = this;
+            map = emulateES6construct(map);
+            if (!map._es6map) {
+              throw new TypeError('bad map');
+            }
+
+            var head = new MapEntry(null, null);
+            // circular doubly-linked list.
+            head.next = head.prev = head;
+
+            defineProperties(map, {
+              '_head': head,
+              '_storage': emptyObject(),
+              '_size': 0
+            });
+
+            // Optionally initialize map from iterable
+            var iterable = arguments[0];
+            if (iterable !== undefined && iterable !== null) {
+              var it = ES.GetIterator(iterable);
+              var adder = map.set;
+              if (!ES.IsCallable(adder)) { throw new TypeError('bad map'); }
+              while (true) {
+                var next = ES.IteratorNext(it);
+                if (next.done) { break; }
+                var nextItem = next.value;
+                if (!ES.TypeIsObject(nextItem)) {
+                  throw new TypeError('expected iterable of pairs');
+                }
+                adder.call(map, nextItem[0], nextItem[1]);
+              }
+            }
+            return map;
+          }
+          var Map$prototype = Map.prototype;
+          defineProperties(Map, {
+            '@@create': function(obj) {
+              var constructor = this;
+              var prototype = constructor.prototype || Map$prototype;
+              obj = obj || create(prototype);
+              defineProperties(obj, { _es6map: true });
+              return obj;
+            }
+          });
+
+          Object.defineProperty(Map.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._size === 'undefined') {
+                throw new TypeError('size method called on incompatible Map');
+              }
+              return this._size;
+            }
+          });
+
+          defineProperties(Map.prototype, {
+            get: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                var entry = this._storage[fkey];
+                return entry ? entry.value : undefined;
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return i.value;
+                }
+              }
+              return undefined;
+            },
+
+            has: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                return typeof this._storage[fkey] !== 'undefined';
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            set: function(key, value) {
+              var head = this._head, i = head, entry;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] !== 'undefined') {
+                  this._storage[fkey].value = value;
+                  return;
+                } else {
+                  entry = this._storage[fkey] = new MapEntry(key, value);
+                  i = head.prev;
+                  // fall through
+                }
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.value = value;
+                  return;
+                }
+              }
+              entry = entry || new MapEntry(key, value);
+              if (ES.SameValue(-0, key)) {
+                entry.key = +0; // coerce -0 to +0 in entry
+              }
+              entry.next = this._head;
+              entry.prev = this._head.prev;
+              entry.prev.next = entry;
+              entry.next.prev = entry;
+              this._size += 1;
+            },
+
+            'delete': function(key) {
+              var head = this._head, i = head;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] === 'undefined') {
+                  return false;
+                }
+                i = this._storage[fkey].prev;
+                delete this._storage[fkey];
+                // fall through
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.key = i.value = empty;
+                  i.prev.next = i.next;
+                  i.next.prev = i.prev;
+                  this._size -= 1;
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            clear: function() {
+              this._size = 0;
+              this._storage = emptyObject();
+              var head = this._head, i = head, p = i.next;
+              while ((i = p) !== head) {
+                i.key = i.value = empty;
+                p = i.next;
+                i.next = i.prev = head;
+              }
+              head.next = head.prev = head;
+            },
+
+            keys: function() {
+              return new MapIterator(this, "key");
+            },
+
+            values: function() {
+              return new MapIterator(this, "value");
+            },
+
+            entries: function() {
+              return new MapIterator(this, "key+value");
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var it = this.entries();
+              for (var entry = it.next(); !entry.done; entry = it.next()) {
+                callback.call(context, entry.value[1], entry.value[0], this);
+              }
+            }
+          });
+          addIterator(Map.prototype, function() { return this.entries(); });
+
+          return Map;
+        })(),
+
+        Set: (function() {
+          // Creating a Map is expensive.  To speed up the common case of
+          // Sets containing only string or numeric keys, we use an object
+          // as backing storage and lazily create a full Map only when
+          // required.
+          var SetShim = function Set() {
+            var set = this;
+            set = emulateES6construct(set);
+            if (!set._es6set) {
+              throw new TypeError('bad set');
+            }
+
+            defineProperties(set, {
+              '[[SetData]]': null,
+              '_storage': emptyObject()
+            });
+
+            // Optionally initialize map from iterable
+            var iterable = arguments[0];
+            if (iterable !== undefined && iterable !== null) {
+              var it = ES.GetIterator(iterable);
+              var adder = set.add;
+              if (!ES.IsCallable(adder)) { throw new TypeError('bad set'); }
+              while (true) {
+                var next = ES.IteratorNext(it);
+                if (next.done) { break; }
+                var nextItem = next.value;
+                adder.call(set, nextItem);
+              }
+            }
+            return set;
+          };
+          var Set$prototype = SetShim.prototype;
+          defineProperties(SetShim, {
+            '@@create': function(obj) {
+              var constructor = this;
+              var prototype = constructor.prototype || Set$prototype;
+              obj = obj || create(prototype);
+              defineProperties(obj, { _es6set: true });
+              return obj;
+            }
+          });
+
+          // Switch from the object backing storage to a full Map.
+          var ensureMap = function ensureMap(set) {
+            if (!set['[[SetData]]']) {
+              var m = set['[[SetData]]'] = new collectionShims.Map();
+              Object.keys(set._storage).forEach(function(k) {
+                // fast check for leading '$'
+                if (k.charCodeAt(0) === 36) {
+                  k = k.substring(1);
+                } else {
+                  k = +k;
+                }
+                m.set(k, k);
+              });
+              set._storage = null; // free old backing storage
+            }
+          };
+
+          Object.defineProperty(SetShim.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._storage === 'undefined') {
+                // https://github.com/paulmillr/es6-shim/issues/176
+                throw new TypeError('size method called on incompatible Set');
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].size;
+            }
+          });
+
+          defineProperties(SetShim.prototype, {
+            has: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                return !!this._storage[fkey];
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].has(key);
+            },
+
+            add: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                this._storage[fkey]=true;
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].set(key, key);
+            },
+
+            'delete': function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                delete this._storage[fkey];
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]']['delete'](key);
+            },
+
+            clear: function() {
+              if (this._storage) {
+                this._storage = emptyObject();
+                return;
+              }
+              return this['[[SetData]]'].clear();
+            },
+
+            keys: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].keys();
+            },
+
+            values: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].values();
+            },
+
+            entries: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].entries();
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var entireSet = this;
+              ensureMap(this);
+              this['[[SetData]]'].forEach(function(value, key) {
+                callback.call(context, key, key, entireSet);
+              });
+            }
+          });
+          addIterator(SetShim.prototype, function() { return this.values(); });
+
+          return SetShim;
+        })()
+      };
+      defineProperties(globals, collectionShims);
+
+      if (globals.Map || globals.Set) {
+        /*
+          - In Firefox < 23, Map#size is a function.
+          - In all current Firefox, Set#entries/keys/values & Map#clear do not exist
+          - https://bugzilla.mozilla.org/show_bug.cgi?id=869996
+          - In Firefox 24, Map and Set do not implement forEach
+          - In Firefox 25 at least, Map and Set are callable without "new"
+        */
+        if (
+          typeof globals.Map.prototype.clear !== 'function' ||
+          new globals.Set().size !== 0 ||
+          new globals.Map().size !== 0 ||
+          typeof globals.Map.prototype.keys !== 'function' ||
+          typeof globals.Set.prototype.keys !== 'function' ||
+          typeof globals.Map.prototype.forEach !== 'function' ||
+          typeof globals.Set.prototype.forEach !== 'function' ||
+          isCallableWithoutNew(globals.Map) ||
+          isCallableWithoutNew(globals.Set) ||
+          !supportsSubclassing(globals.Map, function(M) {
+            return (new M([])) instanceof M;
+          })
+        ) {
+          globals.Map = collectionShims.Map;
+          globals.Set = collectionShims.Set;
+        }
+      }
+      // Shim incomplete iterator implementations.
+      addIterator(Object.getPrototypeOf((new globals.Map()).keys()));
+      addIterator(Object.getPrototypeOf((new globals.Set()).keys()));
+    }
+  };
+
+  if (typeof define === 'function' && define.amd) {
+    define(main); // RequireJS
+  } else {
+    main(); // CommonJS and <script>
+  }
+})();
+
diff --git a/ajax/libs/es6-shim/0.11.1/es6-shim.map b/ajax/libs/es6-shim/0.11.1/es6-shim.map
new file mode 100644
index 000000000..75c3aa130
--- /dev/null
+++ b/ajax/libs/es6-shim/0.11.1/es6-shim.map
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\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.11.1/es6-shim.min.js b/ajax/libs/es6-shim/0.11.1/es6-shim.min.js
new file mode 100644
index 000000000..ca7aef2a7
--- /dev/null
+++ b/ajax/libs/es6-shim/0.11.1/es6-shim.min.js
@@ -0,0 +1,2 @@
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u={capability:o,handler:i};var s={capability:o,handler:t};switch(r._status){case"unresolved":r._resolveReactions.push(u);r._rejectReactions.push(s);break;case"has-resolution":f([u],r._result);break;case"has-rejection":f([s],r._result);break;default:throw new TypeError("unexpected")}return o.promise};return t}();v(o,{Promise:T});var S=r(o.Promise,function(e){return e.resolve(42)instanceof e});var E=function(){try{Promise.reject(42).then(null,5).then(null,function(){});return true}catch(e){return false}}();if(!S||!E){o.Promise=T}if(u){var x=function A(e){var t=typeof e;if(t==="string"){return"$"+e}else if(t==="number"){return e}return null};var k=function R(){return Object.create?Object.create(null):{}};var C={Map:function(){var t={};function r(e,t){this.key=e;this.value=t;this.next=null;this.prev=null}r.prototype.isRemoved=function(){return this.key===t};function n(e,t){this.head=e._head;this.i=this.head;this.kind=t}n.prototype={next:function(){var t=this.i,r=this.kind,n=this.head,a;if(this.i===e){return{value:e,done:true}}while(t.isRemoved()&&t!==n){t=t.prev}while(t.next!==n){t=t.next;if(!t.isRemoved()){if(r==="key"){a=t.key}else if(r==="value"){a=t.value}else{a=[t.key,t.value]}this.i=t;return{value:a,done:false}}}this.i=e;return{value:e,done:true}}};b(n.prototype);function a(){var t=this;t=m(t);if(!t._es6map){throw new TypeError("bad map")}var n=new r(null,null);n.next=n.prev=n;v(t,{_head:n,_storage:k(),_size:0});var a=arguments[0];if(a!==e&&a!==null){var o=w.GetIterator(a);var i=t.set;if(!w.IsCallable(i)){throw new TypeError("bad map")}while(true){var u=w.IteratorNext(o);if(u.done){break}var s=u.value;if(!w.TypeIsObject(s)){throw new TypeError("expected iterable of pairs")}i.call(t,s[0],s[1])}}return t}var o=a.prototype;v(a,{"@@create":function(e){var t=this;var r=t.prototype||o;e=e||p(r);v(e,{_es6map:true});return e}});Object.defineProperty(a.prototype,"size",{configurable:true,enumerable:false,get:function(){if(typeof this._size==="undefined"){throw new TypeError("size method called on incompatible Map")}return this._size}});v(a.prototype,{get:function(t){var r=x(t);if(r!==null){var n=this._storage[r];return n?n.value:e}var a=this._head,o=a;while((o=o.next)!==a){if(w.SameValueZero(o.key,t)){return o.value}}return e},has:function(e){var t=x(e);if(t!==null){return typeof this._storage[t]!=="undefined"}var r=this._head,n=r;while((n=n.next)!==r){if(w.SameValueZero(n.key,e)){return true}}return false},set:function(e,t){var n=this._head,a=n,o;var i=x(e);if(i!==null){if(typeof this._storage[i]!=="undefined"){this._storage[i].value=t;return}else{o=this._storage[i]=new r(e,t);a=n.prev}}while((a=a.next)!==n){if(w.SameValueZero(a.key,e)){a.value=t;return}}o=o||new r(e,t);if(w.SameValue(-0,e)){o.key=+0}o.next=this._head;o.prev=this._head.prev;o.prev.next=o;o.next.prev=o;this._size+=1},"delete":function(e){var r=this._head,n=r;var a=x(e);if(a!==null){if(typeof this._storage[a]==="undefined"){return false}n=this._storage[a].prev;delete this._storage[a]}while((n=n.next)!==r){if(w.SameValueZero(n.key,e)){n.key=n.value=t;n.prev.next=n.next;n.next.prev=n.prev;this._size-=1;return true}}return false},clear:function(){this._size=0;this._storage=k();var e=this._head,r=e,n=r.next;while((r=n)!==e){r.key=r.value=t;n=r.next;r.next=r.prev=e}e.next=e.prev=e},keys:function(){return new n(this,"key")},values:function(){return new n(this,"value")},entries:function(){return new n(this,"key+value")},forEach:function(e){var t=arguments.length>1?arguments[1]:null;var r=this.entries();for(var n=r.next();!n.done;n=r.next()){e.call(t,n.value[1],n.value[0],this)}}});b(a.prototype,function(){return this.entries()});return a}(),Set:function(){var t=function a(){var t=this;t=m(t);if(!t._es6set){throw new TypeError("bad set")}v(t,{"[[SetData]]":null,_storage:k()});var r=arguments[0];if(r!==e&&r!==null){var n=w.GetIterator(r);var a=t.add;if(!w.IsCallable(a)){throw new TypeError("bad set")}while(true){var o=w.IteratorNext(n);if(o.done){break}var i=o.value;a.call(t,i)}}return t};var r=t.prototype;v(t,{"@@create":function(e){var t=this;var n=t.prototype||r;e=e||p(n);v(e,{_es6set:true});return e}});var n=function o(e){if(!e["[[SetData]]"]){var t=e["[[SetData]]"]=new C.Map;Object.keys(e._storage).forEach(function(e){if(e.charCodeAt(0)===36){e=e.substring(1)}else{e=+e}t.set(e,e)});e._storage=null}};Object.defineProperty(t.prototype,"size",{configurable:true,enumerable:false,get:function(){if(typeof this._storage==="undefined"){throw new TypeError("size method called on incompatible Set")}n(this);return this["[[SetData]]"].size}});v(t.prototype,{has:function(e){var t;if(this._storage&&(t=x(e))!==null){return!!this._storage[t]}n(this);return this["[[SetData]]"].has(e)},add:function(e){var t;if(this._storage&&(t=x(e))!==null){this._storage[t]=true;return}n(this);return this["[[SetData]]"].set(e,e)},"delete":function(e){var t;if(this._storage&&(t=x(e))!==null){delete this._storage[t];return}n(this);return this["[[SetData]]"]["delete"](e)},clear:function(){if(this._storage){this._storage=k();return}return this["[[SetData]]"].clear()},keys:function(){n(this);return this["[[SetData]]"].keys()},values:function(){n(this);return this["[[SetData]]"].values()},entries:function(){n(this);return this["[[SetData]]"].entries()},forEach:function(e){var t=arguments.length>1?arguments[1]:null;var r=this;n(this);this["[[SetData]]"].forEach(function(n,a){e.call(t,a,a,r)})}});b(t.prototype,function(){return this.values()});return t}()};v(o,C);if(o.Map||o.Set){if(typeof o.Map.prototype.clear!=="function"||(new o.Set).size!==0||(new o.Map).size!==0||typeof o.Map.prototype.keys!=="function"||typeof o.Set.prototype.keys!=="function"||typeof o.Map.prototype.forEach!=="function"||typeof o.Set.prototype.forEach!=="function"||t(o.Map)||t(o.Set)||!r(o.Map,function(e){return new e([])instanceof e})){o.Map=C.Map;o.Set=C.Set}}b(Object.getPrototypeOf((new o.Map).keys()));b(Object.getPrototypeOf((new o.Set).keys()))}};if(typeof define==="function"&&define.amd){define(o)}else{o()}})();
+//# sourceMappingURL=es6-shim.map
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.12.0/es6-shim.js b/ajax/libs/es6-shim/0.12.0/es6-shim.js
new file mode 100644
index 000000000..e1260cf78
--- /dev/null
+++ b/ajax/libs/es6-shim/0.12.0/es6-shim.js
@@ -0,0 +1,1882 @@
+// ES6-shim 0.12.0 (c) 2013-2014 Paul Miller (http://paulmillr.com)
+// ES6-shim may be freely distributed under the MIT license.
+// For more details and documentation:
+// https://github.com/paulmillr/es6-shim/
+
+(function(undefined) {
+  'use strict';
+
+  var isCallableWithoutNew = function(func) {
+    try { func(); }
+    catch (e) { return false; }
+    return true;
+  };
+
+  var supportsSubclassing = function(C, f) {
+    /* jshint proto:true */
+    try {
+      var Sub = function() { C.apply(this, arguments); };
+      if (!Sub.__proto__) { return false; /* skip test on IE < 11 */ }
+      Object.setPrototypeOf(Sub, C);
+      Sub.prototype = Object.create(C.prototype, {
+        constructor: { value: C }
+      });
+      return f(Sub);
+    } catch (e) {
+      return false;
+    }
+  };
+
+  var arePropertyDescriptorsSupported = function() {
+    try {
+      Object.defineProperty({}, 'x', {});
+      return true;
+    } catch (e) { /* this is IE 8. */
+      return false;
+    }
+  };
+
+  var startsWithRejectsRegex = function() {
+    var rejectsRegex = false;
+    if (String.prototype.startsWith) {
+      try {
+        '/a/'.startsWith(/a/);
+      } catch (e) { /* this is spec compliant */
+        rejectsRegex = true;
+      }
+    }
+    return rejectsRegex;
+  };
+
+  var main = function() {
+    var globals = (typeof global === 'undefined') ? self : global;
+    var global_isFinite = globals.isFinite;
+    var supportsDescriptors = !!Object.defineProperty && arePropertyDescriptorsSupported();
+    var startsWithIsCompliant = startsWithRejectsRegex();
+    var _slice = Array.prototype.slice;
+    var _indexOf = String.prototype.indexOf;
+    var _toString = Object.prototype.toString;
+    var _hasOwnProperty = Object.prototype.hasOwnProperty;
+    var ArrayIterator; // make our implementation private
+
+    // Define configurable, writable and non-enumerable props
+    // if they don’t exist.
+    var defineProperties = function(object, map) {
+      Object.keys(map).forEach(function(name) {
+        var method = map[name];
+        if (name in object) return;
+        if (supportsDescriptors) {
+          Object.defineProperty(object, name, {
+            configurable: true,
+            enumerable: false,
+            writable: true,
+            value: method
+          });
+        } else {
+          object[name] = method;
+        }
+      });
+    };
+
+    // Simple shim for Object.create on ES3 browsers
+    // (unlike real shim, no attepmt to support `prototype===null`)
+    var create = Object.create || function(prototype, properties) {
+      function Type() {}
+      Type.prototype = prototype;
+      var object = new Type();
+      if (typeof properties !== "undefined")
+        defineProperties(object, properties);
+      return object;
+    };
+
+    // This is a private name in the es6 spec, equal to '[Symbol.iterator]'
+    // we're going to use an arbitrary _-prefixed name to make our shims
+    // work properly with each other, even though we don't have full Iterator
+    // support.  That is, `Array.from(map.keys())` will work, but we don't
+    // pretend to export a "real" Iterator interface.
+    var $iterator$ = (typeof Symbol === 'object' && Symbol.iterator) ||
+      '_es6shim_iterator_';
+    // Firefox ships a partial implementation using the name @@iterator.
+    // https://bugzilla.mozilla.org/show_bug.cgi?id=907077#c14
+    // So use that name if we detect it.
+    if (globals.Set && typeof new globals.Set()['@@iterator'] === 'function') {
+      $iterator$ = '@@iterator';
+    }
+    var addIterator = function(prototype, impl) {
+      if (!impl) { impl = function iterator() { return this; }; }
+      var o = {};
+      o[$iterator$] = impl;
+      defineProperties(prototype, o);
+    };
+
+    // taken directly from https://github.com/ljharb/is-arguments/blob/master/index.js
+    // can be replaced with require('is-arguments') if we ever use a build process instead
+    var isArguments = function isArguments(value) {
+      var str = _toString.call(value);
+      var result = str === '[object Arguments]';
+      if (!result) {
+        result = str !== '[object Array]' &&
+          value !== null &&
+          typeof value === 'object' &&
+          typeof value.length === 'number' &&
+          value.length >= 0 &&
+          _toString.call(value.callee) === '[object Function]';
+      }
+      return result;
+    };
+
+    var emulateES6construct = function(o) {
+      if (!ES.TypeIsObject(o)) throw new TypeError('bad object');
+      // es5 approximation to es6 subclass semantics: in es6, 'new Foo'
+      // would invoke Foo.@@create to allocation/initialize the new object.
+      // In es5 we just get the plain object.  So if we detect an
+      // uninitialized object, invoke o.constructor.@@create
+      if (!o._es6construct) {
+        if (o.constructor && ES.IsCallable(o.constructor['@@create'])) {
+          o = o.constructor['@@create'](o);
+        }
+        defineProperties(o, { _es6construct: true });
+      }
+      return o;
+    };
+
+    var ES = {
+      CheckObjectCoercible: function(x, optMessage) {
+        /* jshint eqnull:true */
+        if (x == null)
+          throw new TypeError(optMessage || ('Cannot call method on ' + x));
+        return x;
+      },
+
+      TypeIsObject: function(x) {
+        /* jshint eqnull:true */
+        // this is expensive when it returns false; use this function
+        // when you expect it to return true in the common case.
+        return x != null && Object(x) === x;
+      },
+
+      ToObject: function(o, optMessage) {
+        return Object(ES.CheckObjectCoercible(o, optMessage));
+      },
+
+      IsCallable: function(x) {
+        return typeof x === 'function' &&
+          // some versions of IE say that typeof /abc/ === 'function'
+          _toString.call(x) === '[object Function]';
+      },
+
+      ToInt32: function(x) {
+        return x >> 0;
+      },
+
+      ToUint32: function(x) {
+        return x >>> 0;
+      },
+
+      ToInteger: function(value) {
+        var number = +value;
+        if (Number.isNaN(number)) return 0;
+        if (number === 0 || !Number.isFinite(number)) return number;
+        return Math.sign(number) * Math.floor(Math.abs(number));
+      },
+
+      ToLength: function(value) {
+        var len = ES.ToInteger(value);
+        if (len <= 0) return 0; // includes converting -0 to +0
+        if (len > Number.MAX_SAFE_INTEGER) return Number.MAX_SAFE_INTEGER;
+        return len;
+      },
+
+      SameValue: function(a, b) {
+        if (a === b) {
+          // 0 === -0, but they are not identical.
+          if (a === 0) return 1 / a === 1 / b;
+          return true;
+        }
+        return Number.isNaN(a) && Number.isNaN(b);
+      },
+
+      SameValueZero: function(a, b) {
+        // same as SameValue except for SameValueZero(+0, -0) == true
+        return (a === b) || (Number.isNaN(a) && Number.isNaN(b));
+      },
+
+      IsIterable: function(o) {
+        return ES.TypeIsObject(o) &&
+          (o[$iterator$] !== undefined || isArguments(o));
+      },
+
+      GetIterator: function(o) {
+        if (isArguments(o)) {
+          // special case support for `arguments`
+          return new ArrayIterator(o, "value");
+        }
+        var it = o[$iterator$]();
+        if (!ES.TypeIsObject(it)) {
+          throw new TypeError('bad iterator');
+        }
+        return it;
+      },
+
+      IteratorNext: function(it) {
+        var result = (arguments.length > 1) ? it.next(arguments[1]) : it.next();
+        if (!ES.TypeIsObject(result)) {
+          throw new TypeError('bad iterator');
+        }
+        return result;
+      },
+
+      Construct: function(C, args) {
+        // CreateFromConstructor
+        var obj;
+        if (ES.IsCallable(C['@@create'])) {
+          obj = C['@@create']();
+        } else {
+          // OrdinaryCreateFromConstructor
+          obj = create(C.prototype || null);
+        }
+        // Mark that we've used the es6 construct path
+        // (see emulateES6construct)
+        defineProperties(obj, { _es6construct: true });
+        // Call the constructor.
+        var result = C.apply(obj, args);
+        return ES.TypeIsObject(result) ? result : obj;
+      }
+    };
+
+    var numberConversion = (function () {
+      // from https://github.com/inexorabletash/polyfill/blob/master/typedarray.js#L176-L266
+      // with permission and license, per https://twitter.com/inexorabletash/status/372206509540659200
+
+      function roundToEven(n) {
+        var w = Math.floor(n), f = n - w;
+        if (f < 0.5) {
+          return w;
+        }
+        if (f > 0.5) {
+          return w + 1;
+        }
+        return w % 2 ? w + 1 : w;
+      }
+
+      function packIEEE754(v, ebits, fbits) {
+        var bias = (1 << (ebits - 1)) - 1,
+          s, e, f, ln,
+          i, bits, str, bytes;
+
+        // Compute sign, exponent, fraction
+        if (v !== v) {
+          // NaN
+          // http://dev.w3.org/2006/webapi/WebIDL/#es-type-mapping
+          e = (1 << ebits) - 1;
+          f = Math.pow(2, fbits - 1);
+          s = 0;
+        } else if (v === Infinity || v === -Infinity) {
+          e = (1 << ebits) - 1;
+          f = 0;
+          s = (v < 0) ? 1 : 0;
+        } else if (v === 0) {
+          e = 0;
+          f = 0;
+          s = (1 / v === -Infinity) ? 1 : 0;
+        } else {
+          s = v < 0;
+          v = Math.abs(v);
+
+          if (v >= Math.pow(2, 1 - bias)) {
+            e = Math.min(Math.floor(Math.log(v) / Math.LN2), 1023);
+            f = roundToEven(v / Math.pow(2, e) * Math.pow(2, fbits));
+            if (f / Math.pow(2, fbits) >= 2) {
+              e = e + 1;
+              f = 1;
+            }
+            if (e > bias) {
+              // Overflow
+              e = (1 << ebits) - 1;
+              f = 0;
+            } else {
+              // Normal
+              e = e + bias;
+              f = f - Math.pow(2, fbits);
+            }
+          } else {
+            // Subnormal
+            e = 0;
+            f = roundToEven(v / Math.pow(2, 1 - bias - fbits));
+          }
+        }
+
+        // Pack sign, exponent, fraction
+        bits = [];
+        for (i = fbits; i; i -= 1) {
+          bits.push(f % 2 ? 1 : 0);
+          f = Math.floor(f / 2);
+        }
+        for (i = ebits; i; i -= 1) {
+          bits.push(e % 2 ? 1 : 0);
+          e = Math.floor(e / 2);
+        }
+        bits.push(s ? 1 : 0);
+        bits.reverse();
+        str = bits.join('');
+
+        // Bits to bytes
+        bytes = [];
+        while (str.length) {
+          bytes.push(parseInt(str.substring(0, 8), 2));
+          str = str.substring(8);
+        }
+        return bytes;
+      }
+
+      function unpackIEEE754(bytes, ebits, fbits) {
+        // Bytes to bits
+        var bits = [], i, j, b, str,
+            bias, s, e, f;
+
+        for (i = bytes.length; i; i -= 1) {
+          b = bytes[i - 1];
+          for (j = 8; j; j -= 1) {
+            bits.push(b % 2 ? 1 : 0);
+            b = b >> 1;
+          }
+        }
+        bits.reverse();
+        str = bits.join('');
+
+        // Unpack sign, exponent, fraction
+        bias = (1 << (ebits - 1)) - 1;
+        s = parseInt(str.substring(0, 1), 2) ? -1 : 1;
+        e = parseInt(str.substring(1, 1 + ebits), 2);
+        f = parseInt(str.substring(1 + ebits), 2);
+
+        // Produce number
+        if (e === (1 << ebits) - 1) {
+          return f !== 0 ? NaN : s * Infinity;
+        } else if (e > 0) {
+          // Normalized
+          return s * Math.pow(2, e - bias) * (1 + f / Math.pow(2, fbits));
+        } else if (f !== 0) {
+          // Denormalized
+          return s * Math.pow(2, -(bias - 1)) * (f / Math.pow(2, fbits));
+        } else {
+          return s < 0 ? -0 : 0;
+        }
+      }
+
+      function unpackFloat64(b) { return unpackIEEE754(b, 11, 52); }
+      function packFloat64(v) { return packIEEE754(v, 11, 52); }
+      function unpackFloat32(b) { return unpackIEEE754(b, 8, 23); }
+      function packFloat32(v) { return packIEEE754(v, 8, 23); }
+
+      var conversions = {
+        toFloat32: function (num) { return unpackFloat32(packFloat32(num)); }
+      };
+      if (typeof Float32Array !== 'undefined') {
+        var float32array = new Float32Array(1);
+        conversions.toFloat32 = function (num) {
+          float32array[0] = num;
+          return float32array[0];
+        };
+      }
+      return conversions;
+    }());
+
+    defineProperties(String, {
+      fromCodePoint: function() {
+        var points = _slice.call(arguments, 0, arguments.length);
+        var result = [];
+        var next;
+        for (var i = 0, length = points.length; i < length; i++) {
+          next = Number(points[i]);
+          if (!ES.SameValue(next, ES.ToInteger(next)) ||
+              next < 0 || next > 0x10FFFF) {
+            throw new RangeError('Invalid code point ' + next);
+          }
+
+          if (next < 0x10000) {
+            result.push(String.fromCharCode(next));
+          } else {
+            next -= 0x10000;
+            result.push(String.fromCharCode((next >> 10) + 0xD800));
+            result.push(String.fromCharCode((next % 0x400) + 0xDC00));
+          }
+        }
+        return result.join('');
+      },
+
+      raw: function(callSite) { // raw.length===1
+        var substitutions = _slice.call(arguments, 1, arguments.length);
+        var cooked = ES.ToObject(callSite, 'bad callSite');
+        var rawValue = cooked.raw;
+        var raw = ES.ToObject(rawValue, 'bad raw value');
+        var len = Object.keys(raw).length;
+        var literalsegments = ES.ToLength(len);
+        if (literalsegments === 0) {
+          return '';
+        }
+
+        var stringElements = [];
+        var nextIndex = 0;
+        var nextKey, next, nextSeg, nextSub;
+        while (nextIndex < literalsegments) {
+          nextKey = String(nextIndex);
+          next = raw[nextKey];
+          nextSeg = String(next);
+          stringElements.push(nextSeg);
+          if (nextIndex + 1 >= literalsegments) {
+            break;
+          }
+          next = substitutions[nextKey];
+          if (next === undefined) {
+            break;
+          }
+          nextSub = String(next);
+          stringElements.push(nextSub);
+          nextIndex++;
+        }
+        return stringElements.join('');
+      }
+    });
+
+    var StringShims = {
+      // Fast repeat, uses the `Exponentiation by squaring` algorithm.
+      // Perf: http://jsperf.com/string-repeat2/2
+      repeat: (function() {
+        var repeat = function(s, times) {
+          if (times < 1) return '';
+          if (times % 2) return repeat(s, times - 1) + s;
+          var half = repeat(s, times / 2);
+          return half + half;
+        };
+
+        return function(times) {
+          var thisStr = String(ES.CheckObjectCoercible(this));
+          times = ES.ToInteger(times);
+          if (times < 0 || times === Infinity) {
+            throw new RangeError('Invalid String#repeat value');
+          }
+          return repeat(thisStr, times);
+        };
+      })(),
+
+      startsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "startsWith" with a regex');
+        searchStr = String(searchStr);
+        var startArg = arguments.length > 1 ? arguments[1] : undefined;
+        var start = Math.max(ES.ToInteger(startArg), 0);
+        return thisStr.slice(start, start + searchStr.length) === searchStr;
+      },
+
+      endsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "endsWith" with a regex');
+        searchStr = String(searchStr);
+        var thisLen = thisStr.length;
+        var posArg = arguments.length > 1 ? arguments[1] : undefined;
+        var pos = posArg === undefined ? thisLen : ES.ToInteger(posArg);
+        var end = Math.min(Math.max(pos, 0), thisLen);
+        return thisStr.slice(end - searchStr.length, end) === searchStr;
+      },
+
+      contains: function(searchString) {
+        var position = arguments.length > 1 ? arguments[1] : undefined;
+        // Somehow this trick makes method 100% compat with the spec.
+        return _indexOf.call(this, searchString, position) !== -1;
+      },
+
+      codePointAt: function(pos) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        var position = ES.ToInteger(pos);
+        var length = thisStr.length;
+        if (position < 0 || position >= length) return undefined;
+        var first = thisStr.charCodeAt(position);
+        var isEnd = (position + 1 === length);
+        if (first < 0xD800 || first > 0xDBFF || isEnd) return first;
+        var second = thisStr.charCodeAt(position + 1);
+        if (second < 0xDC00 || second > 0xDFFF) return first;
+        return ((first - 0xD800) * 1024) + (second - 0xDC00) + 0x10000;
+      }
+    };
+    defineProperties(String.prototype, StringShims);
+
+    var hasStringTrimBug = '\u0085'.trim().length !== 1;
+    if (hasStringTrimBug) {
+      var originalStringTrim = String.prototype.trim;
+      delete String.prototype.trim;
+      // whitespace from: http://es5.github.io/#x15.5.4.20
+      // implementation from https://github.com/es-shims/es5-shim/blob/v3.4.0/es5-shim.js#L1304-L1324
+      var ws = [
+        '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003',
+        '\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028',
+        '\u2029\uFEFF'
+      ].join('');
+      var trimBeginRegexp = new RegExp('^[' + ws + '][' + ws + ']*');
+      var trimEndRegexp = new RegExp('[' + ws + '][' + ws + ']*$');
+      defineProperties(String.prototype, {
+        trim: function() {
+          if (this === undefined || this === null) {
+            throw new TypeError("can't convert " + this + " to object");
+          }
+          return String(this)
+            .replace(trimBeginRegexp, "")
+            .replace(trimEndRegexp, "");
+          }
+      });
+    }
+
+    // see https://people.mozilla.org/~jorendorff/es6-draft.html#sec-string.prototype-@@iterator
+    var StringIterator = function(s) {
+      this._s = String(ES.CheckObjectCoercible(s));
+      this._i = 0;
+    };
+    StringIterator.prototype.next = function() {
+      var s = this._s, i = this._i;
+      if (s === undefined || i >= s.length) {
+        this._s = undefined;
+        return { value: undefined, done: true };
+      }
+      var first = s.charCodeAt(i), second, len;
+      if (first < 0xD800 || first > 0xDBFF || (i+1) == s.length) {
+        len = 1;
+      } else {
+        second = s.charCodeAt(i+1);
+        len = (second < 0xDC00 || second > 0xDFFF) ? 1 : 2;
+      }
+      this._i = i + len;
+      return { value: s.substr(i, len), done: false };
+    };
+    addIterator(StringIterator.prototype);
+    addIterator(String.prototype, function() {
+      return new StringIterator(this);
+    });
+
+    if (!startsWithIsCompliant) {
+      // Firefox has a noncompliant startsWith implementation
+      String.prototype.startsWith = StringShims.startsWith;
+      String.prototype.endsWith = StringShims.endsWith;
+    }
+
+    defineProperties(Array, {
+      from: function(iterable) {
+        var mapFn = arguments.length > 1 ? arguments[1] : undefined;
+        var thisArg = arguments.length > 2 ? arguments[2] : undefined;
+
+        var list = ES.ToObject(iterable, 'bad iterable');
+        if (mapFn !== undefined && !ES.IsCallable(mapFn)) {
+          throw new TypeError('Array.from: when provided, the second argument must be a function');
+        }
+
+        var usingIterator = ES.IsIterable(list);
+        // does the spec really mean that Arrays should use ArrayIterator?
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2416
+        //if (Array.isArray(list)) { usingIterator=false; }
+        var length = usingIterator ? 0 : ES.ToLength(list.length);
+        var result = ES.IsCallable(this) ? Object(usingIterator ? new this() : new this(length)) : new Array(length);
+        var it = usingIterator ? ES.GetIterator(list) : null;
+        var value;
+
+        for (var i = 0; usingIterator || (i < length); i++) {
+          if (usingIterator) {
+            value = ES.IteratorNext(it);
+            if (value.done) {
+              length = i;
+              break;
+            }
+            value = value.value;
+          } else {
+            value = list[i];
+          }
+          if (mapFn !== undefined) {
+            result[i] = thisArg ? mapFn.call(thisArg, value) : mapFn(value);
+          } else {
+            result[i] = value;
+          }
+        }
+
+        result.length = length;
+        return result;
+      },
+
+      of: function() {
+        return Array.from(arguments);
+      }
+    });
+
+    // Our ArrayIterator is private; see
+    // https://github.com/paulmillr/es6-shim/issues/252
+    ArrayIterator = function(array, kind) {
+        this.i = 0;
+        this.array = array;
+        this.kind = kind;
+    };
+
+    defineProperties(ArrayIterator.prototype, {
+      next: function() {
+        var i = this.i, array = this.array;
+        if (i === undefined || this.kind === undefined) {
+          throw new TypeError('Not an ArrayIterator');
+        }
+        if (array!==undefined) {
+          var len = ES.ToLength(array.length);
+          for (; i < len; i++) {
+            var kind = this.kind;
+            var retval;
+            if (kind === "key") {
+              retval = i;
+            } else if (kind === "value") {
+              retval = array[i];
+            } else if (kind === "entry") {
+              retval = [i, array[i]];
+            }
+            this.i = i + 1;
+            return { value: retval, done: false };
+          }
+        }
+        this.array = undefined;
+        return { value: undefined, done: true };
+      }
+    });
+    addIterator(ArrayIterator.prototype);
+
+    defineProperties(Array.prototype, {
+      copyWithin: function(target, start) {
+        var end = arguments[2]; // copyWithin.length must be 2
+        var o = ES.ToObject(this);
+        var len = ES.ToLength(o.length);
+        target = ES.ToInteger(target);
+        start = ES.ToInteger(start);
+        var to = target < 0 ? Math.max(len + target, 0) : Math.min(target, len);
+        var from = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+        end = (end===undefined) ? len : ES.ToInteger(end);
+        var fin = end < 0 ? Math.max(len + end, 0) : Math.min(end, len);
+        var count = Math.min(fin - from, len - to);
+        var direction = 1;
+        if (from < to && to < (from + count)) {
+          direction = -1;
+          from += count - 1;
+          to += count - 1;
+        }
+        while (count > 0) {
+          if (_hasOwnProperty.call(o, from)) {
+            o[to] = o[from];
+          } else {
+            delete o[from];
+          }
+          from += direction;
+          to += direction;
+          count -= 1;
+        }
+        return o;
+      },
+
+      fill: function(value) {
+        var start = arguments[1], end = arguments[2]; // fill.length===1
+        var O = ES.ToObject(this);
+        var len = ES.ToLength(O.length);
+        start = ES.ToInteger(start===undefined ? 0 : start);
+        end = ES.ToInteger(end===undefined ? len : end);
+
+        var relativeStart = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+
+        for (var i = relativeStart; i < len && i < end; ++i) {
+          O[i] = value;
+        }
+        return O;
+      },
+
+      find: function(predicate) {
+        var list = ES.ToObject(this);
+        var length = ES.ToLength(list.length);
+        if (!ES.IsCallable(predicate)) {
+          throw new TypeError('Array#find: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0, value; i < length; i++) {
+          if (i in list) {
+            value = list[i];
+            if (predicate.call(thisArg, value, i, list)) return value;
+          }
+        }
+        return undefined;
+      },
+
+      findIndex: function(predicate) {
+        var list = ES.ToObject(this);
+        var length = ES.ToLength(list.length);
+        if (!ES.IsCallable(predicate)) {
+          throw new TypeError('Array#findIndex: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0; i < length; i++) {
+          if (i in list) {
+            if (predicate.call(thisArg, list[i], i, list)) return i;
+          }
+        }
+        return -1;
+      },
+
+      keys: function() {
+        return new ArrayIterator(this, "key");
+      },
+
+      values: function() {
+        return new ArrayIterator(this, "value");
+      },
+
+      entries: function() {
+        return new ArrayIterator(this, "entry");
+      }
+    });
+    addIterator(Array.prototype, function() { return this.values(); });
+    // Chrome defines keys/values/entries on Array, but doesn't give us
+    // any way to identify its iterator.  So add our own shimmed field.
+    if (Object.getPrototypeOf) {
+      addIterator(Object.getPrototypeOf([].values()));
+    }
+
+    var maxSafeInteger = Math.pow(2, 53) - 1;
+    defineProperties(Number, {
+      MAX_SAFE_INTEGER: maxSafeInteger,
+      MIN_SAFE_INTEGER: -maxSafeInteger,
+      EPSILON: 2.220446049250313e-16,
+
+      parseInt: globals.parseInt,
+      parseFloat: globals.parseFloat,
+
+      isFinite: function(value) {
+        return typeof value === 'number' && global_isFinite(value);
+      },
+
+      isInteger: function(value) {
+        return typeof value === 'number' &&
+          !Number.isNaN(value) &&
+          Number.isFinite(value) &&
+          ES.ToInteger(value) === value;
+      },
+
+      isSafeInteger: function(value) {
+        return Number.isInteger(value) && Math.abs(value) <= Number.MAX_SAFE_INTEGER;
+      },
+
+      isNaN: function(value) {
+        // NaN !== NaN, but they are identical.
+        // NaNs are the only non-reflexive value, i.e., if x !== x,
+        // then x is NaN.
+        // isNaN is broken: it converts its argument to number, so
+        // isNaN('foo') => true
+        return value !== value;
+      }
+
+    });
+
+    if (supportsDescriptors) {
+      defineProperties(Object, {
+        getPropertyDescriptor: function(subject, name) {
+          var pd = Object.getOwnPropertyDescriptor(subject, name);
+          var proto = Object.getPrototypeOf(subject);
+          while (pd === undefined && proto !== null) {
+            pd = Object.getOwnPropertyDescriptor(proto, name);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return pd;
+        },
+
+        getPropertyNames: function(subject) {
+          var result = Object.getOwnPropertyNames(subject);
+          var proto = Object.getPrototypeOf(subject);
+
+          var addProperty = function(property) {
+            if (result.indexOf(property) === -1) {
+              result.push(property);
+            }
+          };
+
+          while (proto !== null) {
+            Object.getOwnPropertyNames(proto).forEach(addProperty);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return result;
+        }
+      });
+
+      defineProperties(Object, {
+        // 19.1.3.1
+        assign: function(target, source) {
+          if (!ES.TypeIsObject(target)) {
+            throw new TypeError('target must be an object');
+          }
+          return Array.prototype.reduce.call(arguments, function(target, source) {
+            if (!ES.TypeIsObject(source)) {
+              throw new TypeError('source must be an object');
+            }
+            return Object.keys(source).reduce(function(target, key) {
+              target[key] = source[key];
+              return target;
+            }, target);
+          });
+        },
+
+        getOwnPropertyKeys: function(subject) {
+          return Object.keys(subject);
+        },
+
+        is: function(a, b) {
+          return ES.SameValue(a, b);
+        },
+
+        // 19.1.3.9
+        // shim from https://gist.github.com/WebReflection/5593554
+        setPrototypeOf: (function(Object, magic) {
+          var set;
+
+          var checkArgs = function(O, proto) {
+            if (!ES.TypeIsObject(O)) {
+              throw new TypeError('cannot set prototype on a non-object');
+            }
+            if (!(proto===null || ES.TypeIsObject(proto))) {
+              throw new TypeError('can only set prototype to an object or null'+proto);
+            }
+          };
+
+          var setPrototypeOf = function(O, proto) {
+            checkArgs(O, proto);
+            set.call(O, proto);
+            return O;
+          };
+
+          try {
+            // this works already in Firefox and Safari
+            set = Object.getOwnPropertyDescriptor(Object.prototype, magic).set;
+            set.call({}, null);
+          } catch (e) {
+            if (Object.prototype !== {}[magic]) {
+              // IE < 11 cannot be shimmed
+              return;
+            }
+            // probably Chrome or some old Mobile stock browser
+            set = function(proto) {
+              this[magic] = proto;
+            };
+            // please note that this will **not** work
+            // in those browsers that do not inherit
+            // __proto__ by mistake from Object.prototype
+            // in these cases we should probably throw an error
+            // or at least be informed about the issue
+            setPrototypeOf.polyfill = setPrototypeOf(
+              setPrototypeOf({}, null),
+              Object.prototype
+            ) instanceof Object;
+            // setPrototypeOf.polyfill === true means it works as meant
+            // setPrototypeOf.polyfill === false means it's not 100% reliable
+            // setPrototypeOf.polyfill === undefined
+            // or
+            // setPrototypeOf.polyfill ==  null means it's not a polyfill
+            // which means it works as expected
+            // we can even delete Object.prototype.__proto__;
+          }
+          return setPrototypeOf;
+        })(Object, '__proto__')
+      });
+    }
+
+    // Workaround bug in Opera 12 where setPrototypeOf(x, null) doesn't work,
+    // but Object.create(null) does.
+    if (Object.setPrototypeOf && Object.getPrototypeOf &&
+        Object.getPrototypeOf(Object.setPrototypeOf({}, null)) !== null &&
+        Object.getPrototypeOf(Object.create(null)) === null) {
+      (function() {
+        var FAKENULL = Object.create(null);
+        var gpo = Object.getPrototypeOf, spo = Object.setPrototypeOf;
+        Object.getPrototypeOf = function(o) {
+          var result = gpo(o);
+          return result === FAKENULL ? null : result;
+        };
+        Object.setPrototypeOf = function(o, p) {
+          if (p === null) { p = FAKENULL; }
+          return spo(o, p);
+        };
+        Object.setPrototypeOf.polyfill = false;
+      })();
+    }
+
+    try {
+      Object.keys('foo');
+    } catch (e) {
+      var originalObjectKeys = Object.keys;
+      Object.keys = function (obj) {
+        return originalObjectKeys(ES.ToObject(obj));
+      };
+    }
+
+    var MathShims = {
+      acosh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < 1) return NaN;
+        if (value === 1) return 0;
+        if (value === Infinity) return value;
+        return Math.log(value + Math.sqrt(value * value - 1));
+      },
+
+      asinh: function(value) {
+        value = Number(value);
+        if (value === 0 || !global_isFinite(value)) {
+          return value;
+        }
+        return value < 0 ? -Math.asinh(-value) : Math.log(value + Math.sqrt(value * value + 1));
+      },
+
+      atanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < -1 || value > 1) {
+          return NaN;
+        }
+        if (value === -1) return -Infinity;
+        if (value === 1) return Infinity;
+        if (value === 0) return value;
+        return 0.5 * Math.log((1 + value) / (1 - value));
+      },
+
+      cbrt: function(value) {
+        value = Number(value);
+        if (value === 0) return value;
+        var negate = value < 0, result;
+        if (negate) value = -value;
+        result = Math.pow(value, 1/3);
+        return negate ? -result : result;
+      },
+
+      clz32: function(value) {
+        // See https://bugs.ecmascript.org/show_bug.cgi?id=2465
+        value = Number(value);
+        if (Number.isNaN(value)) return NaN;
+        var number = ES.ToUint32(value);
+        if (number === 0) {
+          return 32;
+        }
+        return 32 - (number).toString(2).length;
+      },
+
+      cosh: function(value) {
+        value = Number(value);
+        if (value === 0) return 1; // +0 or -0
+        if (Number.isNaN(value)) return NaN;
+        if (!global_isFinite(value)) return Infinity;
+        if (value < 0) value = -value;
+        if (value > 21) return Math.exp(value) / 2;
+        return (Math.exp(value) + Math.exp(-value)) / 2;
+      },
+
+      expm1: function(value) {
+        value = Number(value);
+        if (value === -Infinity) return -1;
+        if (!global_isFinite(value) || value === 0) return value;
+        return Math.exp(value) - 1;
+      },
+
+      hypot: function(x, y) {
+        var anyNaN = false;
+        var allZero = true;
+        var anyInfinity = false;
+        var numbers = [];
+        Array.prototype.every.call(arguments, function(arg) {
+          var num = Number(arg);
+          if (Number.isNaN(num)) anyNaN = true;
+          else if (num === Infinity || num === -Infinity) anyInfinity = true;
+          else if (num !== 0) allZero = false;
+          if (anyInfinity) {
+            return false;
+          } else if (!anyNaN) {
+            numbers.push(Math.abs(num));
+          }
+          return true;
+        });
+        if (anyInfinity) return Infinity;
+        if (anyNaN) return NaN;
+        if (allZero) return 0;
+
+        numbers.sort(function (a, b) { return b - a; });
+        var largest = numbers[0];
+        var divided = numbers.map(function (number) { return number / largest; });
+        var sum = divided.reduce(function (sum, number) { return sum += number * number; }, 0);
+        return largest * Math.sqrt(sum);
+      },
+
+      log2: function(value) {
+        return Math.log(value) * Math.LOG2E;
+      },
+
+      log10: function(value) {
+        return Math.log(value) * Math.LOG10E;
+      },
+
+      log1p: function(value) {
+        value = Number(value);
+        if (value < -1 || Number.isNaN(value)) return NaN;
+        if (value === 0 || value === Infinity) return value;
+        if (value === -1) return -Infinity;
+        var result = 0;
+        var n = 50;
+
+        if (value < 0 || value > 1) return Math.log(1 + value);
+        for (var i = 1; i < n; i++) {
+          if ((i % 2) === 0) {
+            result -= Math.pow(value, i) / i;
+          } else {
+            result += Math.pow(value, i) / i;
+          }
+        }
+
+        return result;
+      },
+
+      sign: function(value) {
+        var number = +value;
+        if (number === 0) return number;
+        if (Number.isNaN(number)) return number;
+        return number < 0 ? -1 : 1;
+      },
+
+      sinh: function(value) {
+        value = Number(value);
+        if (!global_isFinite(value) || value === 0) return value;
+        return (Math.exp(value) - Math.exp(-value)) / 2;
+      },
+
+      tanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value === 0) return value;
+        if (value === Infinity) return 1;
+        if (value === -Infinity) return -1;
+        return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+      },
+
+      trunc: function(value) {
+        var number = Number(value);
+        return number < 0 ? -Math.floor(-number) : Math.floor(number);
+      },
+
+      imul: function(x, y) {
+        // taken from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
+        var ah  = (x >>> 16) & 0xffff;
+        var al = x & 0xffff;
+        var bh  = (y >>> 16) & 0xffff;
+        var bl = y & 0xffff;
+        // the shift by 0 fixes the sign on the high part
+        // the final |0 converts the unsigned value into a signed value
+        return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);
+      },
+
+      fround: function(x) {
+        if (x === 0 || x === Infinity || x === -Infinity || Number.isNaN(x)) {
+          return x;
+        }
+        var num = Number(x);
+        return numberConversion.toFloat32(num);
+      }
+    };
+    defineProperties(Math, MathShims);
+
+    if (Math.imul(0xffffffff, 5) !== -5) {
+      // Safari 6.1, at least, reports "0" for this value
+      Math.imul = MathShims.imul;
+    }
+
+    // Promises
+    // Simplest possible implementation; use a 3rd-party library if you
+    // want the best possible speed and/or long stack traces.
+    var PromiseShim = (function() {
+
+      var Promise, Promise$prototype;
+
+      ES.IsPromise = function(promise) {
+        if (!ES.TypeIsObject(promise)) {
+          return false;
+        }
+        if (!promise._promiseConstructor) {
+          // _promiseConstructor is a bit more unique than _status, so we'll
+          // check that instead of the [[PromiseStatus]] internal field.
+          return false;
+        }
+        if (promise._status === undefined) {
+          return false; // uninitialized
+        }
+        return true;
+      };
+
+      // "PromiseCapability" in the spec is what most promise implementations
+      // call a "deferred".
+      var PromiseCapability = function(C) {
+        if (!ES.IsCallable(C)) {
+          throw new TypeError('bad promise constructor');
+        }
+        var capability = this;
+        var resolver = function(resolve, reject) {
+          capability.resolve = resolve;
+          capability.reject = reject;
+        };
+        capability.promise = ES.Construct(C, [resolver]);
+        // see https://bugs.ecmascript.org/show_bug.cgi?id=2478
+        if (!capability.promise._es6construct) {
+          throw new TypeError('bad promise constructor');
+        }
+        if (!(ES.IsCallable(capability.resolve) &&
+              ES.IsCallable(capability.reject))) {
+          throw new TypeError('bad promise constructor');
+        }
+      };
+
+      // find an appropriate setImmediate-alike
+      var setTimeout = globals.setTimeout;
+      var makeZeroTimeout;
+      if (typeof window !== 'undefined' && ES.IsCallable(window.postMessage)) {
+        makeZeroTimeout = function() {
+          // from http://dbaron.org/log/20100309-faster-timeouts
+          var timeouts = [];
+          var messageName = "zero-timeout-message";
+          var setZeroTimeout = function(fn) {
+            timeouts.push(fn);
+            window.postMessage(messageName, "*");
+          };
+          var handleMessage = function(event) {
+            if (event.source == window && event.data == messageName) {
+              event.stopPropagation();
+              if (timeouts.length === 0) { return; }
+              var fn = timeouts.shift();
+              fn();
+            }
+          };
+          window.addEventListener("message", handleMessage, true);
+          return setZeroTimeout;
+        };
+      }
+      var makePromiseAsap = function() {
+        // An efficient task-scheduler based on a pre-existing Promise
+        // implementation, which we can use even if we override the
+        // global Promise below (in order to workaround bugs)
+        // https://github.com/Raynos/observ-hash/issues/2#issuecomment-35857671
+        var P = globals.Promise;
+        return P && P.resolve && function(task) {
+          return P.resolve().then(task);
+        };
+      };
+      var enqueue = ES.IsCallable(globals.setImmediate) ?
+        globals.setImmediate.bind(globals) :
+        typeof process === 'object' && process.nextTick ? process.nextTick :
+        makePromiseAsap() ||
+        (ES.IsCallable(makeZeroTimeout) ? makeZeroTimeout() :
+        function(task) { setTimeout(task, 0); }); // fallback
+
+      var triggerPromiseReactions = function(reactions, x) {
+        reactions.forEach(function(reaction) {
+          enqueue(function() {
+            // PromiseReactionTask
+            var handler = reaction.handler;
+            var capability = reaction.capability;
+            var resolve = capability.resolve;
+            var reject = capability.reject;
+            try {
+              var result = handler(x);
+              if (result === capability.promise) {
+                throw new TypeError('self resolution');
+              }
+              var updateResult =
+                updatePromiseFromPotentialThenable(result, capability);
+              if (!updateResult) {
+                resolve(result);
+              }
+            } catch (e) {
+              reject(e);
+            }
+          });
+        });
+      };
+
+      var updatePromiseFromPotentialThenable = function(x, capability) {
+        if (!ES.TypeIsObject(x)) {
+          return false;
+        }
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          var then = x.then; // only one invocation of accessor
+          if (!ES.IsCallable(then)) { return false; }
+          then.call(x, resolve, reject);
+        } catch(e) {
+          reject(e);
+        }
+        return true;
+      };
+
+      var promiseResolutionHandler = function(promise, onFulfilled, onRejected){
+        return function(x) {
+          if (x === promise) {
+            return onRejected(new TypeError('self resolution'));
+          }
+          var C = promise._promiseConstructor;
+          var capability = new PromiseCapability(C);
+          var updateResult = updatePromiseFromPotentialThenable(x, capability);
+          if (updateResult) {
+            return capability.promise.then(onFulfilled, onRejected);
+          } else {
+            return onFulfilled(x);
+          }
+        };
+      };
+
+      Promise = function(resolver) {
+        var promise = this;
+        promise = emulateES6construct(promise);
+        if (!promise._promiseConstructor) {
+          // we use _promiseConstructor as a stand-in for the internal
+          // [[PromiseStatus]] field; it's a little more unique.
+          throw new TypeError('bad promise');
+        }
+        if (promise._status !== undefined) {
+          throw new TypeError('promise already initialized');
+        }
+        // see https://bugs.ecmascript.org/show_bug.cgi?id=2482
+        if (!ES.IsCallable(resolver)) {
+          throw new TypeError('not a valid resolver');
+        }
+        promise._status = 'unresolved';
+        promise._resolveReactions = [];
+        promise._rejectReactions = [];
+
+        var resolve = function(resolution) {
+          if (promise._status !== 'unresolved') { return; }
+          var reactions = promise._resolveReactions;
+          promise._result = resolution;
+          promise._resolveReactions = undefined;
+          promise._rejectReactions = undefined;
+          promise._status = 'has-resolution';
+          triggerPromiseReactions(reactions, resolution);
+        };
+        var reject = function(reason) {
+          if (promise._status !== 'unresolved') { return; }
+          var reactions = promise._rejectReactions;
+          promise._result = reason;
+          promise._resolveReactions = undefined;
+          promise._rejectReactions = undefined;
+          promise._status = 'has-rejection';
+          triggerPromiseReactions(reactions, reason);
+        };
+        try {
+          resolver(resolve, reject);
+        } catch (e) {
+          reject(e);
+        }
+        return promise;
+      };
+      Promise$prototype = Promise.prototype;
+      defineProperties(Promise, {
+        '@@create': function(obj) {
+          var constructor = this;
+          // AllocatePromise
+          // The `obj` parameter is a hack we use for es5
+          // compatibility.
+          var prototype = constructor.prototype || Promise$prototype;
+          obj = obj || create(prototype);
+          defineProperties(obj, {
+            _status: undefined,
+            _result: undefined,
+            _resolveReactions: undefined,
+            _rejectReactions: undefined,
+            _promiseConstructor: undefined
+          });
+          obj._promiseConstructor = constructor;
+          return obj;
+        }
+      });
+
+      var _promiseAllResolver = function(index, values, capability, remaining) {
+        var done = false;
+        return function(x) {
+          if (done) { return; } // protect against being called multiple times
+          done = true;
+          values[index] = x;
+          if ((--remaining.count) === 0) {
+            var resolve = capability.resolve;
+            resolve(values); // call w/ this===undefined
+          }
+        };
+      };
+
+      Promise.all = function(iterable) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          if (!ES.IsIterable(iterable)) {
+            throw new TypeError('bad iterable');
+          }
+          var it = ES.GetIterator(iterable);
+          var values = [], remaining = { count: 1 };
+          for (var index = 0; ; index++) {
+            var next = ES.IteratorNext(it);
+            if (next.done) {
+              break;
+            }
+            var nextPromise = C.resolve(next.value);
+            var resolveElement = _promiseAllResolver(
+              index, values, capability, remaining
+            );
+            remaining.count++;
+            nextPromise.then(resolveElement, capability.reject);
+          }
+          if ((--remaining.count) === 0) {
+            resolve(values); // call w/ this===undefined
+          }
+        } catch (e) {
+          reject(e);
+        }
+        return capability.promise;
+      };
+
+      Promise.race = function(iterable) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          if (!ES.IsIterable(iterable)) {
+            throw new TypeError('bad iterable');
+          }
+          var it = ES.GetIterator(iterable);
+          while (true) {
+            var next = ES.IteratorNext(it);
+            if (next.done) {
+              // If iterable has no items, resulting promise will never
+              // resolve; see:
+              // https://github.com/domenic/promises-unwrapping/issues/75
+              // https://bugs.ecmascript.org/show_bug.cgi?id=2515
+              break;
+            }
+            var nextPromise = C.resolve(next.value);
+            nextPromise.then(resolve, reject);
+          }
+        } catch (e) {
+          reject(e);
+        }
+        return capability.promise;
+      };
+
+      Promise.reject = function(reason) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var reject = capability.reject;
+        reject(reason); // call with this===undefined
+        return capability.promise;
+      };
+
+      Promise.resolve = function(v) {
+        var C = this;
+        if (ES.IsPromise(v)) {
+          var constructor = v._promiseConstructor;
+          if (constructor === C) { return v; }
+        }
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        resolve(v); // call with this===undefined
+        return capability.promise;
+      };
+
+      Promise.prototype['catch'] = function( onRejected ) {
+        return this.then(undefined, onRejected);
+      };
+
+      Promise.prototype.then = function( onFulfilled, onRejected ) {
+        var promise = this;
+        if (!ES.IsPromise(promise)) { throw new TypeError('not a promise'); }
+        // this.constructor not this._promiseConstructor; see
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2513
+        var C = this.constructor;
+        var capability = new PromiseCapability(C);
+        if (!ES.IsCallable(onRejected)) {
+          onRejected = function(e) { throw e; };
+        }
+        if (!ES.IsCallable(onFulfilled)) {
+          onFulfilled = function(x) { return x; };
+        }
+        var resolutionHandler =
+          promiseResolutionHandler(promise, onFulfilled, onRejected);
+        var resolveReaction =
+          { capability: capability, handler: resolutionHandler };
+        var rejectReaction =
+          { capability: capability, handler: onRejected };
+        switch (promise._status) {
+        case 'unresolved':
+          promise._resolveReactions.push(resolveReaction);
+          promise._rejectReactions.push(rejectReaction);
+          break;
+        case 'has-resolution':
+          triggerPromiseReactions([resolveReaction], promise._result);
+          break;
+        case 'has-rejection':
+          triggerPromiseReactions([rejectReaction], promise._result);
+          break;
+        default:
+          throw new TypeError('unexpected');
+        }
+        return capability.promise;
+      };
+
+      return Promise;
+    })();
+    // export the Promise constructor.
+    defineProperties(globals, { Promise: PromiseShim });
+    // In Chrome 33 (and thereabouts) Promise is defined, but the
+    // implementation is buggy in a number of ways.  Let's check subclassing
+    // support to see if we have a buggy implementation.
+    var promiseSupportsSubclassing = supportsSubclassing(globals.Promise, function(S) {
+      return S.resolve(42) instanceof S;
+    });
+    var promiseIgnoresNonFunctionThenCallbacks = (function () {
+      try {
+        Promise.reject(42).then(null,5).then(null, function () {});
+        return true;
+      } catch (ex) {
+        return false;
+      }
+    }());
+    if (!promiseSupportsSubclassing || !promiseIgnoresNonFunctionThenCallbacks) {
+      globals.Promise = PromiseShim;
+    }
+
+    // Map and Set require a true ES5 environment
+    if (supportsDescriptors) {
+
+      var fastkey = function fastkey(key) {
+        var type = typeof key;
+        if (type === 'string') {
+          return '$' + key;
+        } else if (type === 'number') {
+          // note that -0 will get coerced to "0" when used as a property key
+          return key;
+        }
+        return null;
+      };
+
+      var emptyObject = function emptyObject() {
+        // accomodate some older not-quite-ES5 browsers
+        return Object.create ? Object.create(null) : {};
+      };
+
+      var collectionShims = {
+        Map: (function() {
+
+          var empty = {};
+
+          function MapEntry(key, value) {
+            this.key = key;
+            this.value = value;
+            this.next = null;
+            this.prev = null;
+          }
+
+          MapEntry.prototype.isRemoved = function() {
+            return this.key === empty;
+          };
+
+          function MapIterator(map, kind) {
+            this.head = map._head;
+            this.i = this.head;
+            this.kind = kind;
+          }
+
+          MapIterator.prototype = {
+            next: function() {
+              var i = this.i, kind = this.kind, head = this.head, result;
+              if (this.i === undefined) {
+                return { value: undefined, done: true };
+              }
+              while (i.isRemoved() && i !== head) {
+                // back up off of removed entries
+                i = i.prev;
+              }
+              // advance to next unreturned element.
+              while (i.next !== head) {
+                i = i.next;
+                if (!i.isRemoved()) {
+                  if (kind === "key") {
+                    result = i.key;
+                  } else if (kind === "value") {
+                    result = i.value;
+                  } else {
+                    result = [i.key, i.value];
+                  }
+                  this.i = i;
+                  return { value: result, done: false };
+                }
+              }
+              // once the iterator is done, it is done forever.
+              this.i = undefined;
+              return { value: undefined, done: true };
+            }
+          };
+          addIterator(MapIterator.prototype);
+
+          function Map() {
+            var map = this;
+            map = emulateES6construct(map);
+            if (!map._es6map) {
+              throw new TypeError('bad map');
+            }
+
+            var head = new MapEntry(null, null);
+            // circular doubly-linked list.
+            head.next = head.prev = head;
+
+            defineProperties(map, {
+              '_head': head,
+              '_storage': emptyObject(),
+              '_size': 0
+            });
+
+            // Optionally initialize map from iterable
+            var iterable = arguments[0];
+            if (iterable !== undefined && iterable !== null) {
+              var it = ES.GetIterator(iterable);
+              var adder = map.set;
+              if (!ES.IsCallable(adder)) { throw new TypeError('bad map'); }
+              while (true) {
+                var next = ES.IteratorNext(it);
+                if (next.done) { break; }
+                var nextItem = next.value;
+                if (!ES.TypeIsObject(nextItem)) {
+                  throw new TypeError('expected iterable of pairs');
+                }
+                adder.call(map, nextItem[0], nextItem[1]);
+              }
+            }
+            return map;
+          }
+          var Map$prototype = Map.prototype;
+          defineProperties(Map, {
+            '@@create': function(obj) {
+              var constructor = this;
+              var prototype = constructor.prototype || Map$prototype;
+              obj = obj || create(prototype);
+              defineProperties(obj, { _es6map: true });
+              return obj;
+            }
+          });
+
+          Object.defineProperty(Map.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._size === 'undefined') {
+                throw new TypeError('size method called on incompatible Map');
+              }
+              return this._size;
+            }
+          });
+
+          defineProperties(Map.prototype, {
+            get: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                var entry = this._storage[fkey];
+                return entry ? entry.value : undefined;
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return i.value;
+                }
+              }
+              return undefined;
+            },
+
+            has: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                return typeof this._storage[fkey] !== 'undefined';
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            set: function(key, value) {
+              var head = this._head, i = head, entry;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] !== 'undefined') {
+                  this._storage[fkey].value = value;
+                  return;
+                } else {
+                  entry = this._storage[fkey] = new MapEntry(key, value);
+                  i = head.prev;
+                  // fall through
+                }
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.value = value;
+                  return;
+                }
+              }
+              entry = entry || new MapEntry(key, value);
+              if (ES.SameValue(-0, key)) {
+                entry.key = +0; // coerce -0 to +0 in entry
+              }
+              entry.next = this._head;
+              entry.prev = this._head.prev;
+              entry.prev.next = entry;
+              entry.next.prev = entry;
+              this._size += 1;
+            },
+
+            'delete': function(key) {
+              var head = this._head, i = head;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] === 'undefined') {
+                  return false;
+                }
+                i = this._storage[fkey].prev;
+                delete this._storage[fkey];
+                // fall through
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.key = i.value = empty;
+                  i.prev.next = i.next;
+                  i.next.prev = i.prev;
+                  this._size -= 1;
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            clear: function() {
+              this._size = 0;
+              this._storage = emptyObject();
+              var head = this._head, i = head, p = i.next;
+              while ((i = p) !== head) {
+                i.key = i.value = empty;
+                p = i.next;
+                i.next = i.prev = head;
+              }
+              head.next = head.prev = head;
+            },
+
+            keys: function() {
+              return new MapIterator(this, "key");
+            },
+
+            values: function() {
+              return new MapIterator(this, "value");
+            },
+
+            entries: function() {
+              return new MapIterator(this, "key+value");
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var it = this.entries();
+              for (var entry = it.next(); !entry.done; entry = it.next()) {
+                callback.call(context, entry.value[1], entry.value[0], this);
+              }
+            }
+          });
+          addIterator(Map.prototype, function() { return this.entries(); });
+
+          return Map;
+        })(),
+
+        Set: (function() {
+          // Creating a Map is expensive.  To speed up the common case of
+          // Sets containing only string or numeric keys, we use an object
+          // as backing storage and lazily create a full Map only when
+          // required.
+          var SetShim = function Set() {
+            var set = this;
+            set = emulateES6construct(set);
+            if (!set._es6set) {
+              throw new TypeError('bad set');
+            }
+
+            defineProperties(set, {
+              '[[SetData]]': null,
+              '_storage': emptyObject()
+            });
+
+            // Optionally initialize map from iterable
+            var iterable = arguments[0];
+            if (iterable !== undefined && iterable !== null) {
+              var it = ES.GetIterator(iterable);
+              var adder = set.add;
+              if (!ES.IsCallable(adder)) { throw new TypeError('bad set'); }
+              while (true) {
+                var next = ES.IteratorNext(it);
+                if (next.done) { break; }
+                var nextItem = next.value;
+                adder.call(set, nextItem);
+              }
+            }
+            return set;
+          };
+          var Set$prototype = SetShim.prototype;
+          defineProperties(SetShim, {
+            '@@create': function(obj) {
+              var constructor = this;
+              var prototype = constructor.prototype || Set$prototype;
+              obj = obj || create(prototype);
+              defineProperties(obj, { _es6set: true });
+              return obj;
+            }
+          });
+
+          // Switch from the object backing storage to a full Map.
+          var ensureMap = function ensureMap(set) {
+            if (!set['[[SetData]]']) {
+              var m = set['[[SetData]]'] = new collectionShims.Map();
+              Object.keys(set._storage).forEach(function(k) {
+                // fast check for leading '$'
+                if (k.charCodeAt(0) === 36) {
+                  k = k.substring(1);
+                } else {
+                  k = +k;
+                }
+                m.set(k, k);
+              });
+              set._storage = null; // free old backing storage
+            }
+          };
+
+          Object.defineProperty(SetShim.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._storage === 'undefined') {
+                // https://github.com/paulmillr/es6-shim/issues/176
+                throw new TypeError('size method called on incompatible Set');
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].size;
+            }
+          });
+
+          defineProperties(SetShim.prototype, {
+            has: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                return !!this._storage[fkey];
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].has(key);
+            },
+
+            add: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                this._storage[fkey]=true;
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].set(key, key);
+            },
+
+            'delete': function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                delete this._storage[fkey];
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]']['delete'](key);
+            },
+
+            clear: function() {
+              if (this._storage) {
+                this._storage = emptyObject();
+                return;
+              }
+              return this['[[SetData]]'].clear();
+            },
+
+            keys: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].keys();
+            },
+
+            values: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].values();
+            },
+
+            entries: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].entries();
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var entireSet = this;
+              ensureMap(this);
+              this['[[SetData]]'].forEach(function(value, key) {
+                callback.call(context, key, key, entireSet);
+              });
+            }
+          });
+          addIterator(SetShim.prototype, function() { return this.values(); });
+
+          return SetShim;
+        })()
+      };
+      defineProperties(globals, collectionShims);
+
+      if (globals.Map || globals.Set) {
+        /*
+          - In Firefox < 23, Map#size is a function.
+          - In all current Firefox, Set#entries/keys/values & Map#clear do not exist
+          - https://bugzilla.mozilla.org/show_bug.cgi?id=869996
+          - In Firefox 24, Map and Set do not implement forEach
+          - In Firefox 25 at least, Map and Set are callable without "new"
+        */
+        if (
+          typeof globals.Map.prototype.clear !== 'function' ||
+          new globals.Set().size !== 0 ||
+          new globals.Map().size !== 0 ||
+          typeof globals.Map.prototype.keys !== 'function' ||
+          typeof globals.Set.prototype.keys !== 'function' ||
+          typeof globals.Map.prototype.forEach !== 'function' ||
+          typeof globals.Set.prototype.forEach !== 'function' ||
+          isCallableWithoutNew(globals.Map) ||
+          isCallableWithoutNew(globals.Set) ||
+          !supportsSubclassing(globals.Map, function(M) {
+            return (new M([])) instanceof M;
+          })
+        ) {
+          globals.Map = collectionShims.Map;
+          globals.Set = collectionShims.Set;
+        }
+      }
+      // Shim incomplete iterator implementations.
+      addIterator(Object.getPrototypeOf((new globals.Map()).keys()));
+      addIterator(Object.getPrototypeOf((new globals.Set()).keys()));
+    }
+  };
+
+  if (typeof define === 'function' && define.amd) {
+    define(main); // RequireJS
+  } else {
+    main(); // CommonJS and <script>
+  }
+})();
+
diff --git a/ajax/libs/es6-shim/0.12.0/es6-shim.map b/ajax/libs/es6-shim/0.12.0/es6-shim.map
new file mode 100644
index 000000000..3f6f56f36
--- /dev/null
+++ b/ajax/libs/es6-shim/0.12.0/es6-shim.map
@@ -0,0 +1 @@
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diff --git a/ajax/libs/es6-shim/0.12.0/es6-shim.min.js b/ajax/libs/es6-shim/0.12.0/es6-shim.min.js
new file mode 100644
index 000000000..89e62aec9
--- /dev/null
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t=arguments.length>1?arguments[1]:null;var r=this.entries();for(var n=r.next();!n.done;n=r.next()){e.call(t,n.value[1],n.value[0],this)}}});g(a.prototype,function(){return this.entries()});return a}(),Set:function(){var t=function a(){var t=this;t=w(t);if(!t._es6set){throw new TypeError("bad set")}p(t,{"[[SetData]]":null,_storage:z()});var r=arguments[0];if(r!==e&&r!==null){var n=d.GetIterator(r);var a=t.add;if(!d.IsCallable(a)){throw new TypeError("bad set")}while(true){var i=d.IteratorNext(n);if(i.done){break}var o=i.value;a.call(t,o)}}return t};var r=t.prototype;p(t,{"@@create":function(e){var t=this;var n=t.prototype||r;e=e||y(n);p(e,{_es6set:true});return e}});var n=function i(e){if(!e["[[SetData]]"]){var t=e["[[SetData]]"]=new D.Map;Object.keys(e._storage).forEach(function(e){if(e.charCodeAt(0)===36){e=e.substring(1)}else{e=+e}t.set(e,e)});e._storage=null}};Object.defineProperty(t.prototype,"size",{configurable:true,enumerable:false,get:function(){if(typeof this._storage==="undefined"){throw new TypeError("size method called on incompatible Set")}n(this);return this["[[SetData]]"].size}});p(t.prototype,{has:function(e){var t;if(this._storage&&(t=F(e))!==null){return!!this._storage[t]}n(this);return this["[[SetData]]"].has(e)},add:function(e){var t;if(this._storage&&(t=F(e))!==null){this._storage[t]=true;return}n(this);return this["[[SetData]]"].set(e,e)},"delete":function(e){var t;if(this._storage&&(t=F(e))!==null){delete this._storage[t];return}n(this);return this["[[SetData]]"]["delete"](e)},clear:function(){if(this._storage){this._storage=z();return}return this["[[SetData]]"].clear()},keys:function(){n(this);return this["[[SetData]]"].keys()},values:function(){n(this);return this["[[SetData]]"].values()},entries:function(){n(this);return this["[[SetData]]"].entries()},forEach:function(e){var t=arguments.length>1?arguments[1]:null;var r=this;n(this);this["[[SetData]]"].forEach(function(n,a){e.call(t,a,a,r)})}});g(t.prototype,function(){return this.values()});return t}()};p(i,D);if(i.Map||i.Set){if(typeof i.Map.prototype.clear!=="function"||(new i.Set).size!==0||(new i.Map).size!==0||typeof i.Map.prototype.keys!=="function"||typeof i.Set.prototype.keys!=="function"||typeof i.Map.prototype.forEach!=="function"||typeof i.Set.prototype.forEach!=="function"||t(i.Map)||t(i.Set)||!r(i.Map,function(e){return new e([])instanceof e})){i.Map=D.Map;i.Set=D.Set}}g(Object.getPrototypeOf((new i.Map).keys()));g(Object.getPrototypeOf((new i.Set).keys()))}};if(typeof define==="function"&&define.amd){define(i)}else{i()}})();
+//# sourceMappingURL=es6-shim.map
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.13.0/es6-shim.js b/ajax/libs/es6-shim/0.13.0/es6-shim.js
new file mode 100644
index 000000000..7260d7169
--- /dev/null
+++ b/ajax/libs/es6-shim/0.13.0/es6-shim.js
@@ -0,0 +1,1887 @@
+// ES6-shim 0.13.0 (c) 2013-2014 Paul Miller (http://paulmillr.com)
+// ES6-shim may be freely distributed under the MIT license.
+// For more details and documentation:
+// https://github.com/paulmillr/es6-shim/
+
+(function(undefined) {
+  'use strict';
+
+  var isCallableWithoutNew = function(func) {
+    try { func(); }
+    catch (e) { return false; }
+    return true;
+  };
+
+  var supportsSubclassing = function(C, f) {
+    /* jshint proto:true */
+    try {
+      var Sub = function() { C.apply(this, arguments); };
+      if (!Sub.__proto__) { return false; /* skip test on IE < 11 */ }
+      Object.setPrototypeOf(Sub, C);
+      Sub.prototype = Object.create(C.prototype, {
+        constructor: { value: C }
+      });
+      return f(Sub);
+    } catch (e) {
+      return false;
+    }
+  };
+
+  var arePropertyDescriptorsSupported = function() {
+    try {
+      Object.defineProperty({}, 'x', {});
+      return true;
+    } catch (e) { /* this is IE 8. */
+      return false;
+    }
+  };
+
+  var startsWithRejectsRegex = function() {
+    var rejectsRegex = false;
+    if (String.prototype.startsWith) {
+      try {
+        '/a/'.startsWith(/a/);
+      } catch (e) { /* this is spec compliant */
+        rejectsRegex = true;
+      }
+    }
+    return rejectsRegex;
+  };
+
+  /*jshint evil: true */
+  var getGlobal = new Function('return this;');
+  /*jshint evil: false */
+
+  var main = function() {
+    var globals = getGlobal();
+    var global_isFinite = globals.isFinite;
+    var supportsDescriptors = !!Object.defineProperty && arePropertyDescriptorsSupported();
+    var startsWithIsCompliant = startsWithRejectsRegex();
+    var _slice = Array.prototype.slice;
+    var _indexOf = String.prototype.indexOf;
+    var _toString = Object.prototype.toString;
+    var _hasOwnProperty = Object.prototype.hasOwnProperty;
+    var ArrayIterator; // make our implementation private
+
+    // Define configurable, writable and non-enumerable props
+    // if they don’t exist.
+    var defineProperties = function(object, map) {
+      Object.keys(map).forEach(function(name) {
+        var method = map[name];
+        if (name in object) return;
+        if (supportsDescriptors) {
+          Object.defineProperty(object, name, {
+            configurable: true,
+            enumerable: false,
+            writable: true,
+            value: method
+          });
+        } else {
+          object[name] = method;
+        }
+      });
+    };
+
+    // Simple shim for Object.create on ES3 browsers
+    // (unlike real shim, no attempt to support `prototype === null`)
+    var create = Object.create || function(prototype, properties) {
+      function Type() {}
+      Type.prototype = prototype;
+      var object = new Type();
+      if (typeof properties !== "undefined") {
+        defineProperties(object, properties);
+      }
+      return object;
+    };
+
+    // This is a private name in the es6 spec, equal to '[Symbol.iterator]'
+    // we're going to use an arbitrary _-prefixed name to make our shims
+    // work properly with each other, even though we don't have full Iterator
+    // support.  That is, `Array.from(map.keys())` will work, but we don't
+    // pretend to export a "real" Iterator interface.
+    var $iterator$ = (typeof Symbol === 'object' && Symbol.iterator) ||
+      '_es6shim_iterator_';
+    // Firefox ships a partial implementation using the name @@iterator.
+    // https://bugzilla.mozilla.org/show_bug.cgi?id=907077#c14
+    // So use that name if we detect it.
+    if (globals.Set && typeof new globals.Set()['@@iterator'] === 'function') {
+      $iterator$ = '@@iterator';
+    }
+    var addIterator = function(prototype, impl) {
+      if (!impl) { impl = function iterator() { return this; }; }
+      var o = {};
+      o[$iterator$] = impl;
+      defineProperties(prototype, o);
+    };
+
+    // taken directly from https://github.com/ljharb/is-arguments/blob/master/index.js
+    // can be replaced with require('is-arguments') if we ever use a build process instead
+    var isArguments = function isArguments(value) {
+      var str = _toString.call(value);
+      var result = str === '[object Arguments]';
+      if (!result) {
+        result = str !== '[object Array]' &&
+          value !== null &&
+          typeof value === 'object' &&
+          typeof value.length === 'number' &&
+          value.length >= 0 &&
+          _toString.call(value.callee) === '[object Function]';
+      }
+      return result;
+    };
+
+    var emulateES6construct = function(o) {
+      if (!ES.TypeIsObject(o)) throw new TypeError('bad object');
+      // es5 approximation to es6 subclass semantics: in es6, 'new Foo'
+      // would invoke Foo.@@create to allocation/initialize the new object.
+      // In es5 we just get the plain object.  So if we detect an
+      // uninitialized object, invoke o.constructor.@@create
+      if (!o._es6construct) {
+        if (o.constructor && ES.IsCallable(o.constructor['@@create'])) {
+          o = o.constructor['@@create'](o);
+        }
+        defineProperties(o, { _es6construct: true });
+      }
+      return o;
+    };
+
+    var ES = {
+      CheckObjectCoercible: function(x, optMessage) {
+        /* jshint eqnull:true */
+        if (x == null)
+          throw new TypeError(optMessage || ('Cannot call method on ' + x));
+        return x;
+      },
+
+      TypeIsObject: function(x) {
+        /* jshint eqnull:true */
+        // this is expensive when it returns false; use this function
+        // when you expect it to return true in the common case.
+        return x != null && Object(x) === x;
+      },
+
+      ToObject: function(o, optMessage) {
+        return Object(ES.CheckObjectCoercible(o, optMessage));
+      },
+
+      IsCallable: function(x) {
+        return typeof x === 'function' &&
+          // some versions of IE say that typeof /abc/ === 'function'
+          _toString.call(x) === '[object Function]';
+      },
+
+      ToInt32: function(x) {
+        return x >> 0;
+      },
+
+      ToUint32: function(x) {
+        return x >>> 0;
+      },
+
+      ToInteger: function(value) {
+        var number = +value;
+        if (Number.isNaN(number)) return 0;
+        if (number === 0 || !Number.isFinite(number)) return number;
+        return Math.sign(number) * Math.floor(Math.abs(number));
+      },
+
+      ToLength: function(value) {
+        var len = ES.ToInteger(value);
+        if (len <= 0) return 0; // includes converting -0 to +0
+        if (len > Number.MAX_SAFE_INTEGER) return Number.MAX_SAFE_INTEGER;
+        return len;
+      },
+
+      SameValue: function(a, b) {
+        if (a === b) {
+          // 0 === -0, but they are not identical.
+          if (a === 0) return 1 / a === 1 / b;
+          return true;
+        }
+        return Number.isNaN(a) && Number.isNaN(b);
+      },
+
+      SameValueZero: function(a, b) {
+        // same as SameValue except for SameValueZero(+0, -0) == true
+        return (a === b) || (Number.isNaN(a) && Number.isNaN(b));
+      },
+
+      IsIterable: function(o) {
+        return ES.TypeIsObject(o) &&
+          (o[$iterator$] !== undefined || isArguments(o));
+      },
+
+      GetIterator: function(o) {
+        if (isArguments(o)) {
+          // special case support for `arguments`
+          return new ArrayIterator(o, "value");
+        }
+        var it = o[$iterator$]();
+        if (!ES.TypeIsObject(it)) {
+          throw new TypeError('bad iterator');
+        }
+        return it;
+      },
+
+      IteratorNext: function(it) {
+        var result = (arguments.length > 1) ? it.next(arguments[1]) : it.next();
+        if (!ES.TypeIsObject(result)) {
+          throw new TypeError('bad iterator');
+        }
+        return result;
+      },
+
+      Construct: function(C, args) {
+        // CreateFromConstructor
+        var obj;
+        if (ES.IsCallable(C['@@create'])) {
+          obj = C['@@create']();
+        } else {
+          // OrdinaryCreateFromConstructor
+          obj = create(C.prototype || null);
+        }
+        // Mark that we've used the es6 construct path
+        // (see emulateES6construct)
+        defineProperties(obj, { _es6construct: true });
+        // Call the constructor.
+        var result = C.apply(obj, args);
+        return ES.TypeIsObject(result) ? result : obj;
+      }
+    };
+
+    var numberConversion = (function () {
+      // from https://github.com/inexorabletash/polyfill/blob/master/typedarray.js#L176-L266
+      // with permission and license, per https://twitter.com/inexorabletash/status/372206509540659200
+
+      function roundToEven(n) {
+        var w = Math.floor(n), f = n - w;
+        if (f < 0.5) {
+          return w;
+        }
+        if (f > 0.5) {
+          return w + 1;
+        }
+        return w % 2 ? w + 1 : w;
+      }
+
+      function packIEEE754(v, ebits, fbits) {
+        var bias = (1 << (ebits - 1)) - 1,
+          s, e, f, ln,
+          i, bits, str, bytes;
+
+        // Compute sign, exponent, fraction
+        if (v !== v) {
+          // NaN
+          // http://dev.w3.org/2006/webapi/WebIDL/#es-type-mapping
+          e = (1 << ebits) - 1;
+          f = Math.pow(2, fbits - 1);
+          s = 0;
+        } else if (v === Infinity || v === -Infinity) {
+          e = (1 << ebits) - 1;
+          f = 0;
+          s = (v < 0) ? 1 : 0;
+        } else if (v === 0) {
+          e = 0;
+          f = 0;
+          s = (1 / v === -Infinity) ? 1 : 0;
+        } else {
+          s = v < 0;
+          v = Math.abs(v);
+
+          if (v >= Math.pow(2, 1 - bias)) {
+            e = Math.min(Math.floor(Math.log(v) / Math.LN2), 1023);
+            f = roundToEven(v / Math.pow(2, e) * Math.pow(2, fbits));
+            if (f / Math.pow(2, fbits) >= 2) {
+              e = e + 1;
+              f = 1;
+            }
+            if (e > bias) {
+              // Overflow
+              e = (1 << ebits) - 1;
+              f = 0;
+            } else {
+              // Normal
+              e = e + bias;
+              f = f - Math.pow(2, fbits);
+            }
+          } else {
+            // Subnormal
+            e = 0;
+            f = roundToEven(v / Math.pow(2, 1 - bias - fbits));
+          }
+        }
+
+        // Pack sign, exponent, fraction
+        bits = [];
+        for (i = fbits; i; i -= 1) {
+          bits.push(f % 2 ? 1 : 0);
+          f = Math.floor(f / 2);
+        }
+        for (i = ebits; i; i -= 1) {
+          bits.push(e % 2 ? 1 : 0);
+          e = Math.floor(e / 2);
+        }
+        bits.push(s ? 1 : 0);
+        bits.reverse();
+        str = bits.join('');
+
+        // Bits to bytes
+        bytes = [];
+        while (str.length) {
+          bytes.push(parseInt(str.substring(0, 8), 2));
+          str = str.substring(8);
+        }
+        return bytes;
+      }
+
+      function unpackIEEE754(bytes, ebits, fbits) {
+        // Bytes to bits
+        var bits = [], i, j, b, str,
+            bias, s, e, f;
+
+        for (i = bytes.length; i; i -= 1) {
+          b = bytes[i - 1];
+          for (j = 8; j; j -= 1) {
+            bits.push(b % 2 ? 1 : 0);
+            b = b >> 1;
+          }
+        }
+        bits.reverse();
+        str = bits.join('');
+
+        // Unpack sign, exponent, fraction
+        bias = (1 << (ebits - 1)) - 1;
+        s = parseInt(str.substring(0, 1), 2) ? -1 : 1;
+        e = parseInt(str.substring(1, 1 + ebits), 2);
+        f = parseInt(str.substring(1 + ebits), 2);
+
+        // Produce number
+        if (e === (1 << ebits) - 1) {
+          return f !== 0 ? NaN : s * Infinity;
+        } else if (e > 0) {
+          // Normalized
+          return s * Math.pow(2, e - bias) * (1 + f / Math.pow(2, fbits));
+        } else if (f !== 0) {
+          // Denormalized
+          return s * Math.pow(2, -(bias - 1)) * (f / Math.pow(2, fbits));
+        } else {
+          return s < 0 ? -0 : 0;
+        }
+      }
+
+      function unpackFloat64(b) { return unpackIEEE754(b, 11, 52); }
+      function packFloat64(v) { return packIEEE754(v, 11, 52); }
+      function unpackFloat32(b) { return unpackIEEE754(b, 8, 23); }
+      function packFloat32(v) { return packIEEE754(v, 8, 23); }
+
+      var conversions = {
+        toFloat32: function (num) { return unpackFloat32(packFloat32(num)); }
+      };
+      if (typeof Float32Array !== 'undefined') {
+        var float32array = new Float32Array(1);
+        conversions.toFloat32 = function (num) {
+          float32array[0] = num;
+          return float32array[0];
+        };
+      }
+      return conversions;
+    }());
+
+    defineProperties(String, {
+      fromCodePoint: function() {
+        var points = _slice.call(arguments, 0, arguments.length);
+        var result = [];
+        var next;
+        for (var i = 0, length = points.length; i < length; i++) {
+          next = Number(points[i]);
+          if (!ES.SameValue(next, ES.ToInteger(next)) ||
+              next < 0 || next > 0x10FFFF) {
+            throw new RangeError('Invalid code point ' + next);
+          }
+
+          if (next < 0x10000) {
+            result.push(String.fromCharCode(next));
+          } else {
+            next -= 0x10000;
+            result.push(String.fromCharCode((next >> 10) + 0xD800));
+            result.push(String.fromCharCode((next % 0x400) + 0xDC00));
+          }
+        }
+        return result.join('');
+      },
+
+      raw: function(callSite) { // raw.length===1
+        var substitutions = _slice.call(arguments, 1, arguments.length);
+        var cooked = ES.ToObject(callSite, 'bad callSite');
+        var rawValue = cooked.raw;
+        var raw = ES.ToObject(rawValue, 'bad raw value');
+        var len = Object.keys(raw).length;
+        var literalsegments = ES.ToLength(len);
+        if (literalsegments === 0) {
+          return '';
+        }
+
+        var stringElements = [];
+        var nextIndex = 0;
+        var nextKey, next, nextSeg, nextSub;
+        while (nextIndex < literalsegments) {
+          nextKey = String(nextIndex);
+          next = raw[nextKey];
+          nextSeg = String(next);
+          stringElements.push(nextSeg);
+          if (nextIndex + 1 >= literalsegments) {
+            break;
+          }
+          next = substitutions[nextKey];
+          if (next === undefined) {
+            break;
+          }
+          nextSub = String(next);
+          stringElements.push(nextSub);
+          nextIndex++;
+        }
+        return stringElements.join('');
+      }
+    });
+
+    var StringShims = {
+      // Fast repeat, uses the `Exponentiation by squaring` algorithm.
+      // Perf: http://jsperf.com/string-repeat2/2
+      repeat: (function() {
+        var repeat = function(s, times) {
+          if (times < 1) return '';
+          if (times % 2) return repeat(s, times - 1) + s;
+          var half = repeat(s, times / 2);
+          return half + half;
+        };
+
+        return function(times) {
+          var thisStr = String(ES.CheckObjectCoercible(this));
+          times = ES.ToInteger(times);
+          if (times < 0 || times === Infinity) {
+            throw new RangeError('Invalid String#repeat value');
+          }
+          return repeat(thisStr, times);
+        };
+      })(),
+
+      startsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "startsWith" with a regex');
+        searchStr = String(searchStr);
+        var startArg = arguments.length > 1 ? arguments[1] : undefined;
+        var start = Math.max(ES.ToInteger(startArg), 0);
+        return thisStr.slice(start, start + searchStr.length) === searchStr;
+      },
+
+      endsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "endsWith" with a regex');
+        searchStr = String(searchStr);
+        var thisLen = thisStr.length;
+        var posArg = arguments.length > 1 ? arguments[1] : undefined;
+        var pos = posArg === undefined ? thisLen : ES.ToInteger(posArg);
+        var end = Math.min(Math.max(pos, 0), thisLen);
+        return thisStr.slice(end - searchStr.length, end) === searchStr;
+      },
+
+      contains: function(searchString) {
+        var position = arguments.length > 1 ? arguments[1] : undefined;
+        // Somehow this trick makes method 100% compat with the spec.
+        return _indexOf.call(this, searchString, position) !== -1;
+      },
+
+      codePointAt: function(pos) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        var position = ES.ToInteger(pos);
+        var length = thisStr.length;
+        if (position < 0 || position >= length) return undefined;
+        var first = thisStr.charCodeAt(position);
+        var isEnd = (position + 1 === length);
+        if (first < 0xD800 || first > 0xDBFF || isEnd) return first;
+        var second = thisStr.charCodeAt(position + 1);
+        if (second < 0xDC00 || second > 0xDFFF) return first;
+        return ((first - 0xD800) * 1024) + (second - 0xDC00) + 0x10000;
+      }
+    };
+    defineProperties(String.prototype, StringShims);
+
+    var hasStringTrimBug = '\u0085'.trim().length !== 1;
+    if (hasStringTrimBug) {
+      var originalStringTrim = String.prototype.trim;
+      delete String.prototype.trim;
+      // whitespace from: http://es5.github.io/#x15.5.4.20
+      // implementation from https://github.com/es-shims/es5-shim/blob/v3.4.0/es5-shim.js#L1304-L1324
+      var ws = [
+        '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003',
+        '\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028',
+        '\u2029\uFEFF'
+      ].join('');
+      var trimBeginRegexp = new RegExp('^[' + ws + '][' + ws + ']*');
+      var trimEndRegexp = new RegExp('[' + ws + '][' + ws + ']*$');
+      defineProperties(String.prototype, {
+        trim: function() {
+          if (this === undefined || this === null) {
+            throw new TypeError("can't convert " + this + " to object");
+          }
+          return String(this)
+            .replace(trimBeginRegexp, "")
+            .replace(trimEndRegexp, "");
+          }
+      });
+    }
+
+    // see https://people.mozilla.org/~jorendorff/es6-draft.html#sec-string.prototype-@@iterator
+    var StringIterator = function(s) {
+      this._s = String(ES.CheckObjectCoercible(s));
+      this._i = 0;
+    };
+    StringIterator.prototype.next = function() {
+      var s = this._s, i = this._i;
+      if (s === undefined || i >= s.length) {
+        this._s = undefined;
+        return { value: undefined, done: true };
+      }
+      var first = s.charCodeAt(i), second, len;
+      if (first < 0xD800 || first > 0xDBFF || (i+1) == s.length) {
+        len = 1;
+      } else {
+        second = s.charCodeAt(i+1);
+        len = (second < 0xDC00 || second > 0xDFFF) ? 1 : 2;
+      }
+      this._i = i + len;
+      return { value: s.substr(i, len), done: false };
+    };
+    addIterator(StringIterator.prototype);
+    addIterator(String.prototype, function() {
+      return new StringIterator(this);
+    });
+
+    if (!startsWithIsCompliant) {
+      // Firefox has a noncompliant startsWith implementation
+      String.prototype.startsWith = StringShims.startsWith;
+      String.prototype.endsWith = StringShims.endsWith;
+    }
+
+    defineProperties(Array, {
+      from: function(iterable) {
+        var mapFn = arguments.length > 1 ? arguments[1] : undefined;
+        var thisArg = arguments.length > 2 ? arguments[2] : undefined;
+
+        var list = ES.ToObject(iterable, 'bad iterable');
+        if (mapFn !== undefined && !ES.IsCallable(mapFn)) {
+          throw new TypeError('Array.from: when provided, the second argument must be a function');
+        }
+
+        var usingIterator = ES.IsIterable(list);
+        // does the spec really mean that Arrays should use ArrayIterator?
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2416
+        //if (Array.isArray(list)) { usingIterator=false; }
+        var length = usingIterator ? 0 : ES.ToLength(list.length);
+        var result = ES.IsCallable(this) ? Object(usingIterator ? new this() : new this(length)) : new Array(length);
+        var it = usingIterator ? ES.GetIterator(list) : null;
+        var value;
+
+        for (var i = 0; usingIterator || (i < length); i++) {
+          if (usingIterator) {
+            value = ES.IteratorNext(it);
+            if (value.done) {
+              length = i;
+              break;
+            }
+            value = value.value;
+          } else {
+            value = list[i];
+          }
+          if (mapFn) {
+            result[i] = thisArg ? mapFn.call(thisArg, value, i) : mapFn(value, i);
+          } else {
+            result[i] = value;
+          }
+        }
+
+        result.length = length;
+        return result;
+      },
+
+      of: function() {
+        return Array.from(arguments);
+      }
+    });
+
+    // Our ArrayIterator is private; see
+    // https://github.com/paulmillr/es6-shim/issues/252
+    ArrayIterator = function(array, kind) {
+        this.i = 0;
+        this.array = array;
+        this.kind = kind;
+    };
+
+    defineProperties(ArrayIterator.prototype, {
+      next: function() {
+        var i = this.i, array = this.array;
+        if (i === undefined || this.kind === undefined) {
+          throw new TypeError('Not an ArrayIterator');
+        }
+        if (array!==undefined) {
+          var len = ES.ToLength(array.length);
+          for (; i < len; i++) {
+            var kind = this.kind;
+            var retval;
+            if (kind === "key") {
+              retval = i;
+            } else if (kind === "value") {
+              retval = array[i];
+            } else if (kind === "entry") {
+              retval = [i, array[i]];
+            }
+            this.i = i + 1;
+            return { value: retval, done: false };
+          }
+        }
+        this.array = undefined;
+        return { value: undefined, done: true };
+      }
+    });
+    addIterator(ArrayIterator.prototype);
+
+    defineProperties(Array.prototype, {
+      copyWithin: function(target, start) {
+        var end = arguments[2]; // copyWithin.length must be 2
+        var o = ES.ToObject(this);
+        var len = ES.ToLength(o.length);
+        target = ES.ToInteger(target);
+        start = ES.ToInteger(start);
+        var to = target < 0 ? Math.max(len + target, 0) : Math.min(target, len);
+        var from = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+        end = (end===undefined) ? len : ES.ToInteger(end);
+        var fin = end < 0 ? Math.max(len + end, 0) : Math.min(end, len);
+        var count = Math.min(fin - from, len - to);
+        var direction = 1;
+        if (from < to && to < (from + count)) {
+          direction = -1;
+          from += count - 1;
+          to += count - 1;
+        }
+        while (count > 0) {
+          if (_hasOwnProperty.call(o, from)) {
+            o[to] = o[from];
+          } else {
+            delete o[from];
+          }
+          from += direction;
+          to += direction;
+          count -= 1;
+        }
+        return o;
+      },
+
+      fill: function(value) {
+        var start = arguments[1], end = arguments[2]; // fill.length===1
+        var O = ES.ToObject(this);
+        var len = ES.ToLength(O.length);
+        start = ES.ToInteger(start===undefined ? 0 : start);
+        end = ES.ToInteger(end===undefined ? len : end);
+
+        var relativeStart = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+
+        for (var i = relativeStart; i < len && i < end; ++i) {
+          O[i] = value;
+        }
+        return O;
+      },
+
+      find: function(predicate) {
+        var list = ES.ToObject(this);
+        var length = ES.ToLength(list.length);
+        if (!ES.IsCallable(predicate)) {
+          throw new TypeError('Array#find: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0, value; i < length; i++) {
+          if (i in list) {
+            value = list[i];
+            if (predicate.call(thisArg, value, i, list)) return value;
+          }
+        }
+        return undefined;
+      },
+
+      findIndex: function(predicate) {
+        var list = ES.ToObject(this);
+        var length = ES.ToLength(list.length);
+        if (!ES.IsCallable(predicate)) {
+          throw new TypeError('Array#findIndex: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0; i < length; i++) {
+          if (i in list) {
+            if (predicate.call(thisArg, list[i], i, list)) return i;
+          }
+        }
+        return -1;
+      },
+
+      keys: function() {
+        return new ArrayIterator(this, "key");
+      },
+
+      values: function() {
+        return new ArrayIterator(this, "value");
+      },
+
+      entries: function() {
+        return new ArrayIterator(this, "entry");
+      }
+    });
+    addIterator(Array.prototype, function() { return this.values(); });
+    // Chrome defines keys/values/entries on Array, but doesn't give us
+    // any way to identify its iterator.  So add our own shimmed field.
+    if (Object.getPrototypeOf) {
+      addIterator(Object.getPrototypeOf([].values()));
+    }
+
+    var maxSafeInteger = Math.pow(2, 53) - 1;
+    defineProperties(Number, {
+      MAX_SAFE_INTEGER: maxSafeInteger,
+      MIN_SAFE_INTEGER: -maxSafeInteger,
+      EPSILON: 2.220446049250313e-16,
+
+      parseInt: globals.parseInt,
+      parseFloat: globals.parseFloat,
+
+      isFinite: function(value) {
+        return typeof value === 'number' && global_isFinite(value);
+      },
+
+      isInteger: function(value) {
+        return typeof value === 'number' &&
+          !Number.isNaN(value) &&
+          Number.isFinite(value) &&
+          ES.ToInteger(value) === value;
+      },
+
+      isSafeInteger: function(value) {
+        return Number.isInteger(value) && Math.abs(value) <= Number.MAX_SAFE_INTEGER;
+      },
+
+      isNaN: function(value) {
+        // NaN !== NaN, but they are identical.
+        // NaNs are the only non-reflexive value, i.e., if x !== x,
+        // then x is NaN.
+        // isNaN is broken: it converts its argument to number, so
+        // isNaN('foo') => true
+        return value !== value;
+      }
+
+    });
+
+    if (supportsDescriptors) {
+      defineProperties(Object, {
+        getPropertyDescriptor: function(subject, name) {
+          var pd = Object.getOwnPropertyDescriptor(subject, name);
+          var proto = Object.getPrototypeOf(subject);
+          while (pd === undefined && proto !== null) {
+            pd = Object.getOwnPropertyDescriptor(proto, name);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return pd;
+        },
+
+        getPropertyNames: function(subject) {
+          var result = Object.getOwnPropertyNames(subject);
+          var proto = Object.getPrototypeOf(subject);
+
+          var addProperty = function(property) {
+            if (result.indexOf(property) === -1) {
+              result.push(property);
+            }
+          };
+
+          while (proto !== null) {
+            Object.getOwnPropertyNames(proto).forEach(addProperty);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return result;
+        }
+      });
+
+      defineProperties(Object, {
+        // 19.1.3.1
+        assign: function(target, source) {
+          if (!ES.TypeIsObject(target)) {
+            throw new TypeError('target must be an object');
+          }
+          return Array.prototype.reduce.call(arguments, function(target, source) {
+            if (!ES.TypeIsObject(source)) {
+              throw new TypeError('source must be an object');
+            }
+            return Object.keys(source).reduce(function(target, key) {
+              target[key] = source[key];
+              return target;
+            }, target);
+          });
+        },
+
+        getOwnPropertyKeys: function(subject) {
+          return Object.keys(subject);
+        },
+
+        is: function(a, b) {
+          return ES.SameValue(a, b);
+        },
+
+        // 19.1.3.9
+        // shim from https://gist.github.com/WebReflection/5593554
+        setPrototypeOf: (function(Object, magic) {
+          var set;
+
+          var checkArgs = function(O, proto) {
+            if (!ES.TypeIsObject(O)) {
+              throw new TypeError('cannot set prototype on a non-object');
+            }
+            if (!(proto===null || ES.TypeIsObject(proto))) {
+              throw new TypeError('can only set prototype to an object or null'+proto);
+            }
+          };
+
+          var setPrototypeOf = function(O, proto) {
+            checkArgs(O, proto);
+            set.call(O, proto);
+            return O;
+          };
+
+          try {
+            // this works already in Firefox and Safari
+            set = Object.getOwnPropertyDescriptor(Object.prototype, magic).set;
+            set.call({}, null);
+          } catch (e) {
+            if (Object.prototype !== {}[magic]) {
+              // IE < 11 cannot be shimmed
+              return;
+            }
+            // probably Chrome or some old Mobile stock browser
+            set = function(proto) {
+              this[magic] = proto;
+            };
+            // please note that this will **not** work
+            // in those browsers that do not inherit
+            // __proto__ by mistake from Object.prototype
+            // in these cases we should probably throw an error
+            // or at least be informed about the issue
+            setPrototypeOf.polyfill = setPrototypeOf(
+              setPrototypeOf({}, null),
+              Object.prototype
+            ) instanceof Object;
+            // setPrototypeOf.polyfill === true means it works as meant
+            // setPrototypeOf.polyfill === false means it's not 100% reliable
+            // setPrototypeOf.polyfill === undefined
+            // or
+            // setPrototypeOf.polyfill ==  null means it's not a polyfill
+            // which means it works as expected
+            // we can even delete Object.prototype.__proto__;
+          }
+          return setPrototypeOf;
+        })(Object, '__proto__')
+      });
+    }
+
+    // Workaround bug in Opera 12 where setPrototypeOf(x, null) doesn't work,
+    // but Object.create(null) does.
+    if (Object.setPrototypeOf && Object.getPrototypeOf &&
+        Object.getPrototypeOf(Object.setPrototypeOf({}, null)) !== null &&
+        Object.getPrototypeOf(Object.create(null)) === null) {
+      (function() {
+        var FAKENULL = Object.create(null);
+        var gpo = Object.getPrototypeOf, spo = Object.setPrototypeOf;
+        Object.getPrototypeOf = function(o) {
+          var result = gpo(o);
+          return result === FAKENULL ? null : result;
+        };
+        Object.setPrototypeOf = function(o, p) {
+          if (p === null) { p = FAKENULL; }
+          return spo(o, p);
+        };
+        Object.setPrototypeOf.polyfill = false;
+      })();
+    }
+
+    try {
+      Object.keys('foo');
+    } catch (e) {
+      var originalObjectKeys = Object.keys;
+      Object.keys = function (obj) {
+        return originalObjectKeys(ES.ToObject(obj));
+      };
+    }
+
+    var MathShims = {
+      acosh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < 1) return NaN;
+        if (value === 1) return 0;
+        if (value === Infinity) return value;
+        return Math.log(value + Math.sqrt(value * value - 1));
+      },
+
+      asinh: function(value) {
+        value = Number(value);
+        if (value === 0 || !global_isFinite(value)) {
+          return value;
+        }
+        return value < 0 ? -Math.asinh(-value) : Math.log(value + Math.sqrt(value * value + 1));
+      },
+
+      atanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < -1 || value > 1) {
+          return NaN;
+        }
+        if (value === -1) return -Infinity;
+        if (value === 1) return Infinity;
+        if (value === 0) return value;
+        return 0.5 * Math.log((1 + value) / (1 - value));
+      },
+
+      cbrt: function(value) {
+        value = Number(value);
+        if (value === 0) return value;
+        var negate = value < 0, result;
+        if (negate) value = -value;
+        result = Math.pow(value, 1/3);
+        return negate ? -result : result;
+      },
+
+      clz32: function(value) {
+        // See https://bugs.ecmascript.org/show_bug.cgi?id=2465
+        value = Number(value);
+        if (Number.isNaN(value)) return NaN;
+        var number = ES.ToUint32(value);
+        if (number === 0) {
+          return 32;
+        }
+        return 32 - (number).toString(2).length;
+      },
+
+      cosh: function(value) {
+        value = Number(value);
+        if (value === 0) return 1; // +0 or -0
+        if (Number.isNaN(value)) return NaN;
+        if (!global_isFinite(value)) return Infinity;
+        if (value < 0) value = -value;
+        if (value > 21) return Math.exp(value) / 2;
+        return (Math.exp(value) + Math.exp(-value)) / 2;
+      },
+
+      expm1: function(value) {
+        value = Number(value);
+        if (value === -Infinity) return -1;
+        if (!global_isFinite(value) || value === 0) return value;
+        return Math.exp(value) - 1;
+      },
+
+      hypot: function(x, y) {
+        var anyNaN = false;
+        var allZero = true;
+        var anyInfinity = false;
+        var numbers = [];
+        Array.prototype.every.call(arguments, function(arg) {
+          var num = Number(arg);
+          if (Number.isNaN(num)) anyNaN = true;
+          else if (num === Infinity || num === -Infinity) anyInfinity = true;
+          else if (num !== 0) allZero = false;
+          if (anyInfinity) {
+            return false;
+          } else if (!anyNaN) {
+            numbers.push(Math.abs(num));
+          }
+          return true;
+        });
+        if (anyInfinity) return Infinity;
+        if (anyNaN) return NaN;
+        if (allZero) return 0;
+
+        numbers.sort(function (a, b) { return b - a; });
+        var largest = numbers[0];
+        var divided = numbers.map(function (number) { return number / largest; });
+        var sum = divided.reduce(function (sum, number) { return sum += number * number; }, 0);
+        return largest * Math.sqrt(sum);
+      },
+
+      log2: function(value) {
+        return Math.log(value) * Math.LOG2E;
+      },
+
+      log10: function(value) {
+        return Math.log(value) * Math.LOG10E;
+      },
+
+      log1p: function(value) {
+        value = Number(value);
+        if (value < -1 || Number.isNaN(value)) return NaN;
+        if (value === 0 || value === Infinity) return value;
+        if (value === -1) return -Infinity;
+        var result = 0;
+        var n = 50;
+
+        if (value < 0 || value > 1) return Math.log(1 + value);
+        for (var i = 1; i < n; i++) {
+          if ((i % 2) === 0) {
+            result -= Math.pow(value, i) / i;
+          } else {
+            result += Math.pow(value, i) / i;
+          }
+        }
+
+        return result;
+      },
+
+      sign: function(value) {
+        var number = +value;
+        if (number === 0) return number;
+        if (Number.isNaN(number)) return number;
+        return number < 0 ? -1 : 1;
+      },
+
+      sinh: function(value) {
+        value = Number(value);
+        if (!global_isFinite(value) || value === 0) return value;
+        return (Math.exp(value) - Math.exp(-value)) / 2;
+      },
+
+      tanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value === 0) return value;
+        if (value === Infinity) return 1;
+        if (value === -Infinity) return -1;
+        return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+      },
+
+      trunc: function(value) {
+        var number = Number(value);
+        return number < 0 ? -Math.floor(-number) : Math.floor(number);
+      },
+
+      imul: function(x, y) {
+        // taken from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
+        var ah  = (x >>> 16) & 0xffff;
+        var al = x & 0xffff;
+        var bh  = (y >>> 16) & 0xffff;
+        var bl = y & 0xffff;
+        // the shift by 0 fixes the sign on the high part
+        // the final |0 converts the unsigned value into a signed value
+        return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);
+      },
+
+      fround: function(x) {
+        if (x === 0 || x === Infinity || x === -Infinity || Number.isNaN(x)) {
+          return x;
+        }
+        var num = Number(x);
+        return numberConversion.toFloat32(num);
+      }
+    };
+    defineProperties(Math, MathShims);
+
+    if (Math.imul(0xffffffff, 5) !== -5) {
+      // Safari 6.1, at least, reports "0" for this value
+      Math.imul = MathShims.imul;
+    }
+
+    // Promises
+    // Simplest possible implementation; use a 3rd-party library if you
+    // want the best possible speed and/or long stack traces.
+    var PromiseShim = (function() {
+
+      var Promise, Promise$prototype;
+
+      ES.IsPromise = function(promise) {
+        if (!ES.TypeIsObject(promise)) {
+          return false;
+        }
+        if (!promise._promiseConstructor) {
+          // _promiseConstructor is a bit more unique than _status, so we'll
+          // check that instead of the [[PromiseStatus]] internal field.
+          return false;
+        }
+        if (promise._status === undefined) {
+          return false; // uninitialized
+        }
+        return true;
+      };
+
+      // "PromiseCapability" in the spec is what most promise implementations
+      // call a "deferred".
+      var PromiseCapability = function(C) {
+        if (!ES.IsCallable(C)) {
+          throw new TypeError('bad promise constructor');
+        }
+        var capability = this;
+        var resolver = function(resolve, reject) {
+          capability.resolve = resolve;
+          capability.reject = reject;
+        };
+        capability.promise = ES.Construct(C, [resolver]);
+        // see https://bugs.ecmascript.org/show_bug.cgi?id=2478
+        if (!capability.promise._es6construct) {
+          throw new TypeError('bad promise constructor');
+        }
+        if (!(ES.IsCallable(capability.resolve) &&
+              ES.IsCallable(capability.reject))) {
+          throw new TypeError('bad promise constructor');
+        }
+      };
+
+      // find an appropriate setImmediate-alike
+      var setTimeout = globals.setTimeout;
+      var makeZeroTimeout;
+      if (typeof window !== 'undefined' && ES.IsCallable(window.postMessage)) {
+        makeZeroTimeout = function() {
+          // from http://dbaron.org/log/20100309-faster-timeouts
+          var timeouts = [];
+          var messageName = "zero-timeout-message";
+          var setZeroTimeout = function(fn) {
+            timeouts.push(fn);
+            window.postMessage(messageName, "*");
+          };
+          var handleMessage = function(event) {
+            if (event.source == window && event.data == messageName) {
+              event.stopPropagation();
+              if (timeouts.length === 0) { return; }
+              var fn = timeouts.shift();
+              fn();
+            }
+          };
+          window.addEventListener("message", handleMessage, true);
+          return setZeroTimeout;
+        };
+      }
+      var makePromiseAsap = function() {
+        // An efficient task-scheduler based on a pre-existing Promise
+        // implementation, which we can use even if we override the
+        // global Promise below (in order to workaround bugs)
+        // https://github.com/Raynos/observ-hash/issues/2#issuecomment-35857671
+        var P = globals.Promise;
+        return P && P.resolve && function(task) {
+          return P.resolve().then(task);
+        };
+      };
+      var enqueue = ES.IsCallable(globals.setImmediate) ?
+        globals.setImmediate.bind(globals) :
+        typeof process === 'object' && process.nextTick ? process.nextTick :
+        makePromiseAsap() ||
+        (ES.IsCallable(makeZeroTimeout) ? makeZeroTimeout() :
+        function(task) { setTimeout(task, 0); }); // fallback
+
+      var triggerPromiseReactions = function(reactions, x) {
+        reactions.forEach(function(reaction) {
+          enqueue(function() {
+            // PromiseReactionTask
+            var handler = reaction.handler;
+            var capability = reaction.capability;
+            var resolve = capability.resolve;
+            var reject = capability.reject;
+            try {
+              var result = handler(x);
+              if (result === capability.promise) {
+                throw new TypeError('self resolution');
+              }
+              var updateResult =
+                updatePromiseFromPotentialThenable(result, capability);
+              if (!updateResult) {
+                resolve(result);
+              }
+            } catch (e) {
+              reject(e);
+            }
+          });
+        });
+      };
+
+      var updatePromiseFromPotentialThenable = function(x, capability) {
+        if (!ES.TypeIsObject(x)) {
+          return false;
+        }
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          var then = x.then; // only one invocation of accessor
+          if (!ES.IsCallable(then)) { return false; }
+          then.call(x, resolve, reject);
+        } catch(e) {
+          reject(e);
+        }
+        return true;
+      };
+
+      var promiseResolutionHandler = function(promise, onFulfilled, onRejected){
+        return function(x) {
+          if (x === promise) {
+            return onRejected(new TypeError('self resolution'));
+          }
+          var C = promise._promiseConstructor;
+          var capability = new PromiseCapability(C);
+          var updateResult = updatePromiseFromPotentialThenable(x, capability);
+          if (updateResult) {
+            return capability.promise.then(onFulfilled, onRejected);
+          } else {
+            return onFulfilled(x);
+          }
+        };
+      };
+
+      Promise = function(resolver) {
+        var promise = this;
+        promise = emulateES6construct(promise);
+        if (!promise._promiseConstructor) {
+          // we use _promiseConstructor as a stand-in for the internal
+          // [[PromiseStatus]] field; it's a little more unique.
+          throw new TypeError('bad promise');
+        }
+        if (promise._status !== undefined) {
+          throw new TypeError('promise already initialized');
+        }
+        // see https://bugs.ecmascript.org/show_bug.cgi?id=2482
+        if (!ES.IsCallable(resolver)) {
+          throw new TypeError('not a valid resolver');
+        }
+        promise._status = 'unresolved';
+        promise._resolveReactions = [];
+        promise._rejectReactions = [];
+
+        var resolve = function(resolution) {
+          if (promise._status !== 'unresolved') { return; }
+          var reactions = promise._resolveReactions;
+          promise._result = resolution;
+          promise._resolveReactions = undefined;
+          promise._rejectReactions = undefined;
+          promise._status = 'has-resolution';
+          triggerPromiseReactions(reactions, resolution);
+        };
+        var reject = function(reason) {
+          if (promise._status !== 'unresolved') { return; }
+          var reactions = promise._rejectReactions;
+          promise._result = reason;
+          promise._resolveReactions = undefined;
+          promise._rejectReactions = undefined;
+          promise._status = 'has-rejection';
+          triggerPromiseReactions(reactions, reason);
+        };
+        try {
+          resolver(resolve, reject);
+        } catch (e) {
+          reject(e);
+        }
+        return promise;
+      };
+      Promise$prototype = Promise.prototype;
+      defineProperties(Promise, {
+        '@@create': function(obj) {
+          var constructor = this;
+          // AllocatePromise
+          // The `obj` parameter is a hack we use for es5
+          // compatibility.
+          var prototype = constructor.prototype || Promise$prototype;
+          obj = obj || create(prototype);
+          defineProperties(obj, {
+            _status: undefined,
+            _result: undefined,
+            _resolveReactions: undefined,
+            _rejectReactions: undefined,
+            _promiseConstructor: undefined
+          });
+          obj._promiseConstructor = constructor;
+          return obj;
+        }
+      });
+
+      var _promiseAllResolver = function(index, values, capability, remaining) {
+        var done = false;
+        return function(x) {
+          if (done) { return; } // protect against being called multiple times
+          done = true;
+          values[index] = x;
+          if ((--remaining.count) === 0) {
+            var resolve = capability.resolve;
+            resolve(values); // call w/ this===undefined
+          }
+        };
+      };
+
+      Promise.all = function(iterable) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          if (!ES.IsIterable(iterable)) {
+            throw new TypeError('bad iterable');
+          }
+          var it = ES.GetIterator(iterable);
+          var values = [], remaining = { count: 1 };
+          for (var index = 0; ; index++) {
+            var next = ES.IteratorNext(it);
+            if (next.done) {
+              break;
+            }
+            var nextPromise = C.resolve(next.value);
+            var resolveElement = _promiseAllResolver(
+              index, values, capability, remaining
+            );
+            remaining.count++;
+            nextPromise.then(resolveElement, capability.reject);
+          }
+          if ((--remaining.count) === 0) {
+            resolve(values); // call w/ this===undefined
+          }
+        } catch (e) {
+          reject(e);
+        }
+        return capability.promise;
+      };
+
+      Promise.race = function(iterable) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          if (!ES.IsIterable(iterable)) {
+            throw new TypeError('bad iterable');
+          }
+          var it = ES.GetIterator(iterable);
+          while (true) {
+            var next = ES.IteratorNext(it);
+            if (next.done) {
+              // If iterable has no items, resulting promise will never
+              // resolve; see:
+              // https://github.com/domenic/promises-unwrapping/issues/75
+              // https://bugs.ecmascript.org/show_bug.cgi?id=2515
+              break;
+            }
+            var nextPromise = C.resolve(next.value);
+            nextPromise.then(resolve, reject);
+          }
+        } catch (e) {
+          reject(e);
+        }
+        return capability.promise;
+      };
+
+      Promise.reject = function(reason) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var reject = capability.reject;
+        reject(reason); // call with this===undefined
+        return capability.promise;
+      };
+
+      Promise.resolve = function(v) {
+        var C = this;
+        if (ES.IsPromise(v)) {
+          var constructor = v._promiseConstructor;
+          if (constructor === C) { return v; }
+        }
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        resolve(v); // call with this===undefined
+        return capability.promise;
+      };
+
+      Promise.prototype['catch'] = function( onRejected ) {
+        return this.then(undefined, onRejected);
+      };
+
+      Promise.prototype.then = function( onFulfilled, onRejected ) {
+        var promise = this;
+        if (!ES.IsPromise(promise)) { throw new TypeError('not a promise'); }
+        // this.constructor not this._promiseConstructor; see
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2513
+        var C = this.constructor;
+        var capability = new PromiseCapability(C);
+        if (!ES.IsCallable(onRejected)) {
+          onRejected = function(e) { throw e; };
+        }
+        if (!ES.IsCallable(onFulfilled)) {
+          onFulfilled = function(x) { return x; };
+        }
+        var resolutionHandler =
+          promiseResolutionHandler(promise, onFulfilled, onRejected);
+        var resolveReaction =
+          { capability: capability, handler: resolutionHandler };
+        var rejectReaction =
+          { capability: capability, handler: onRejected };
+        switch (promise._status) {
+        case 'unresolved':
+          promise._resolveReactions.push(resolveReaction);
+          promise._rejectReactions.push(rejectReaction);
+          break;
+        case 'has-resolution':
+          triggerPromiseReactions([resolveReaction], promise._result);
+          break;
+        case 'has-rejection':
+          triggerPromiseReactions([rejectReaction], promise._result);
+          break;
+        default:
+          throw new TypeError('unexpected');
+        }
+        return capability.promise;
+      };
+
+      return Promise;
+    })();
+    // export the Promise constructor.
+    defineProperties(globals, { Promise: PromiseShim });
+    // In Chrome 33 (and thereabouts) Promise is defined, but the
+    // implementation is buggy in a number of ways.  Let's check subclassing
+    // support to see if we have a buggy implementation.
+    var promiseSupportsSubclassing = supportsSubclassing(globals.Promise, function(S) {
+      return S.resolve(42) instanceof S;
+    });
+    var promiseIgnoresNonFunctionThenCallbacks = (function () {
+      try {
+        globals.Promise.reject(42).then(null, 5).then(null, function () {});
+        return true;
+      } catch (ex) {
+        return false;
+      }
+    }());
+    if (!promiseSupportsSubclassing || !promiseIgnoresNonFunctionThenCallbacks) {
+      globals.Promise = PromiseShim;
+    }
+
+    // Map and Set require a true ES5 environment
+    if (supportsDescriptors) {
+
+      var fastkey = function fastkey(key) {
+        var type = typeof key;
+        if (type === 'string') {
+          return '$' + key;
+        } else if (type === 'number') {
+          // note that -0 will get coerced to "0" when used as a property key
+          return key;
+        }
+        return null;
+      };
+
+      var emptyObject = function emptyObject() {
+        // accomodate some older not-quite-ES5 browsers
+        return Object.create ? Object.create(null) : {};
+      };
+
+      var collectionShims = {
+        Map: (function() {
+
+          var empty = {};
+
+          function MapEntry(key, value) {
+            this.key = key;
+            this.value = value;
+            this.next = null;
+            this.prev = null;
+          }
+
+          MapEntry.prototype.isRemoved = function() {
+            return this.key === empty;
+          };
+
+          function MapIterator(map, kind) {
+            this.head = map._head;
+            this.i = this.head;
+            this.kind = kind;
+          }
+
+          MapIterator.prototype = {
+            next: function() {
+              var i = this.i, kind = this.kind, head = this.head, result;
+              if (this.i === undefined) {
+                return { value: undefined, done: true };
+              }
+              while (i.isRemoved() && i !== head) {
+                // back up off of removed entries
+                i = i.prev;
+              }
+              // advance to next unreturned element.
+              while (i.next !== head) {
+                i = i.next;
+                if (!i.isRemoved()) {
+                  if (kind === "key") {
+                    result = i.key;
+                  } else if (kind === "value") {
+                    result = i.value;
+                  } else {
+                    result = [i.key, i.value];
+                  }
+                  this.i = i;
+                  return { value: result, done: false };
+                }
+              }
+              // once the iterator is done, it is done forever.
+              this.i = undefined;
+              return { value: undefined, done: true };
+            }
+          };
+          addIterator(MapIterator.prototype);
+
+          function Map() {
+            var map = this;
+            map = emulateES6construct(map);
+            if (!map._es6map) {
+              throw new TypeError('bad map');
+            }
+
+            var head = new MapEntry(null, null);
+            // circular doubly-linked list.
+            head.next = head.prev = head;
+
+            defineProperties(map, {
+              '_head': head,
+              '_storage': emptyObject(),
+              '_size': 0
+            });
+
+            // Optionally initialize map from iterable
+            var iterable = arguments[0];
+            if (iterable !== undefined && iterable !== null) {
+              var it = ES.GetIterator(iterable);
+              var adder = map.set;
+              if (!ES.IsCallable(adder)) { throw new TypeError('bad map'); }
+              while (true) {
+                var next = ES.IteratorNext(it);
+                if (next.done) { break; }
+                var nextItem = next.value;
+                if (!ES.TypeIsObject(nextItem)) {
+                  throw new TypeError('expected iterable of pairs');
+                }
+                adder.call(map, nextItem[0], nextItem[1]);
+              }
+            }
+            return map;
+          }
+          var Map$prototype = Map.prototype;
+          defineProperties(Map, {
+            '@@create': function(obj) {
+              var constructor = this;
+              var prototype = constructor.prototype || Map$prototype;
+              obj = obj || create(prototype);
+              defineProperties(obj, { _es6map: true });
+              return obj;
+            }
+          });
+
+          Object.defineProperty(Map.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._size === 'undefined') {
+                throw new TypeError('size method called on incompatible Map');
+              }
+              return this._size;
+            }
+          });
+
+          defineProperties(Map.prototype, {
+            get: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                var entry = this._storage[fkey];
+                return entry ? entry.value : undefined;
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return i.value;
+                }
+              }
+              return undefined;
+            },
+
+            has: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                return typeof this._storage[fkey] !== 'undefined';
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            set: function(key, value) {
+              var head = this._head, i = head, entry;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] !== 'undefined') {
+                  this._storage[fkey].value = value;
+                  return;
+                } else {
+                  entry = this._storage[fkey] = new MapEntry(key, value);
+                  i = head.prev;
+                  // fall through
+                }
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.value = value;
+                  return;
+                }
+              }
+              entry = entry || new MapEntry(key, value);
+              if (ES.SameValue(-0, key)) {
+                entry.key = +0; // coerce -0 to +0 in entry
+              }
+              entry.next = this._head;
+              entry.prev = this._head.prev;
+              entry.prev.next = entry;
+              entry.next.prev = entry;
+              this._size += 1;
+            },
+
+            'delete': function(key) {
+              var head = this._head, i = head;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] === 'undefined') {
+                  return false;
+                }
+                i = this._storage[fkey].prev;
+                delete this._storage[fkey];
+                // fall through
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.key = i.value = empty;
+                  i.prev.next = i.next;
+                  i.next.prev = i.prev;
+                  this._size -= 1;
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            clear: function() {
+              this._size = 0;
+              this._storage = emptyObject();
+              var head = this._head, i = head, p = i.next;
+              while ((i = p) !== head) {
+                i.key = i.value = empty;
+                p = i.next;
+                i.next = i.prev = head;
+              }
+              head.next = head.prev = head;
+            },
+
+            keys: function() {
+              return new MapIterator(this, "key");
+            },
+
+            values: function() {
+              return new MapIterator(this, "value");
+            },
+
+            entries: function() {
+              return new MapIterator(this, "key+value");
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var it = this.entries();
+              for (var entry = it.next(); !entry.done; entry = it.next()) {
+                callback.call(context, entry.value[1], entry.value[0], this);
+              }
+            }
+          });
+          addIterator(Map.prototype, function() { return this.entries(); });
+
+          return Map;
+        })(),
+
+        Set: (function() {
+          // Creating a Map is expensive.  To speed up the common case of
+          // Sets containing only string or numeric keys, we use an object
+          // as backing storage and lazily create a full Map only when
+          // required.
+          var SetShim = function Set() {
+            var set = this;
+            set = emulateES6construct(set);
+            if (!set._es6set) {
+              throw new TypeError('bad set');
+            }
+
+            defineProperties(set, {
+              '[[SetData]]': null,
+              '_storage': emptyObject()
+            });
+
+            // Optionally initialize map from iterable
+            var iterable = arguments[0];
+            if (iterable !== undefined && iterable !== null) {
+              var it = ES.GetIterator(iterable);
+              var adder = set.add;
+              if (!ES.IsCallable(adder)) { throw new TypeError('bad set'); }
+              while (true) {
+                var next = ES.IteratorNext(it);
+                if (next.done) { break; }
+                var nextItem = next.value;
+                adder.call(set, nextItem);
+              }
+            }
+            return set;
+          };
+          var Set$prototype = SetShim.prototype;
+          defineProperties(SetShim, {
+            '@@create': function(obj) {
+              var constructor = this;
+              var prototype = constructor.prototype || Set$prototype;
+              obj = obj || create(prototype);
+              defineProperties(obj, { _es6set: true });
+              return obj;
+            }
+          });
+
+          // Switch from the object backing storage to a full Map.
+          var ensureMap = function ensureMap(set) {
+            if (!set['[[SetData]]']) {
+              var m = set['[[SetData]]'] = new collectionShims.Map();
+              Object.keys(set._storage).forEach(function(k) {
+                // fast check for leading '$'
+                if (k.charCodeAt(0) === 36) {
+                  k = k.substring(1);
+                } else {
+                  k = +k;
+                }
+                m.set(k, k);
+              });
+              set._storage = null; // free old backing storage
+            }
+          };
+
+          Object.defineProperty(SetShim.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._storage === 'undefined') {
+                // https://github.com/paulmillr/es6-shim/issues/176
+                throw new TypeError('size method called on incompatible Set');
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].size;
+            }
+          });
+
+          defineProperties(SetShim.prototype, {
+            has: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                return !!this._storage[fkey];
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].has(key);
+            },
+
+            add: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                this._storage[fkey]=true;
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].set(key, key);
+            },
+
+            'delete': function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                delete this._storage[fkey];
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]']['delete'](key);
+            },
+
+            clear: function() {
+              if (this._storage) {
+                this._storage = emptyObject();
+                return;
+              }
+              return this['[[SetData]]'].clear();
+            },
+
+            keys: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].keys();
+            },
+
+            values: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].values();
+            },
+
+            entries: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].entries();
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var entireSet = this;
+              ensureMap(this);
+              this['[[SetData]]'].forEach(function(value, key) {
+                callback.call(context, key, key, entireSet);
+              });
+            }
+          });
+          addIterator(SetShim.prototype, function() { return this.values(); });
+
+          return SetShim;
+        })()
+      };
+      defineProperties(globals, collectionShims);
+
+      if (globals.Map || globals.Set) {
+        /*
+          - In Firefox < 23, Map#size is a function.
+          - In all current Firefox, Set#entries/keys/values & Map#clear do not exist
+          - https://bugzilla.mozilla.org/show_bug.cgi?id=869996
+          - In Firefox 24, Map and Set do not implement forEach
+          - In Firefox 25 at least, Map and Set are callable without "new"
+        */
+        if (
+          typeof globals.Map.prototype.clear !== 'function' ||
+          new globals.Set().size !== 0 ||
+          new globals.Map().size !== 0 ||
+          typeof globals.Map.prototype.keys !== 'function' ||
+          typeof globals.Set.prototype.keys !== 'function' ||
+          typeof globals.Map.prototype.forEach !== 'function' ||
+          typeof globals.Set.prototype.forEach !== 'function' ||
+          isCallableWithoutNew(globals.Map) ||
+          isCallableWithoutNew(globals.Set) ||
+          !supportsSubclassing(globals.Map, function(M) {
+            return (new M([])) instanceof M;
+          })
+        ) {
+          globals.Map = collectionShims.Map;
+          globals.Set = collectionShims.Set;
+        }
+      }
+      // Shim incomplete iterator implementations.
+      addIterator(Object.getPrototypeOf((new globals.Map()).keys()));
+      addIterator(Object.getPrototypeOf((new globals.Set()).keys()));
+    }
+  };
+
+  if (typeof define === 'function' && define.amd) {
+    define(main); // RequireJS
+  } else {
+    main(); // CommonJS and <script>
+  }
+})();
+
diff --git a/ajax/libs/es6-shim/0.13.0/es6-shim.map b/ajax/libs/es6-shim/0.13.0/es6-shim.map
new file mode 100644
index 000000000..9a0e564ec
--- /dev/null
+++ b/ajax/libs/es6-shim/0.13.0/es6-shim.map
@@ -0,0 +1 @@
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new file mode 100644
index 000000000..bc3d31c2c
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t=arguments.length>1?arguments[1]:null;var r=this.entries();for(var n=r.next();!n.done;n=r.next()){e.call(t,n.value[1],n.value[0],this)}}});m(a.prototype,function(){return this.entries()});return a}(),Set:function(){var t=function a(){var t=this;t=d(t);if(!t._es6set){throw new TypeError("bad set")}y(t,{"[[SetData]]":null,_storage:D()});var r=arguments[0];if(r!==e&&r!==null){var n=j.GetIterator(r);var a=t.add;if(!j.IsCallable(a)){throw new TypeError("bad set")}while(true){var i=j.IteratorNext(n);if(i.done){break}var o=i.value;a.call(t,o)}}return t};var r=t.prototype;y(t,{"@@create":function(e){var t=this;var n=t.prototype||r;e=e||b(n);y(e,{_es6set:true});return e}});var n=function i(e){if(!e["[[SetData]]"]){var t=e["[[SetData]]"]=new G.Map;Object.keys(e._storage).forEach(function(e){if(e.charCodeAt(0)===36){e=e.substring(1)}else{e=+e}t.set(e,e)});e._storage=null}};Object.defineProperty(t.prototype,"size",{configurable:true,enumerable:false,get:function(){if(typeof this._storage==="undefined"){throw new TypeError("size method called on incompatible Set")}n(this);return this["[[SetData]]"].size}});y(t.prototype,{has:function(e){var t;if(this._storage&&(t=z(e))!==null){return!!this._storage[t]}n(this);return this["[[SetData]]"].has(e)},add:function(e){var t;if(this._storage&&(t=z(e))!==null){this._storage[t]=true;return}n(this);return this["[[SetData]]"].set(e,e)},"delete":function(e){var t;if(this._storage&&(t=z(e))!==null){delete this._storage[t];return}n(this);return this["[[SetData]]"]["delete"](e)},clear:function(){if(this._storage){this._storage=D();return}return this["[[SetData]]"].clear()},keys:function(){n(this);return this["[[SetData]]"].keys()},values:function(){n(this);return this["[[SetData]]"].values()},entries:function(){n(this);return this["[[SetData]]"].entries()},forEach:function(e){var t=arguments.length>1?arguments[1]:null;var r=this;n(this);this["[[SetData]]"].forEach(function(n,a){e.call(t,a,a,r)})}});m(t.prototype,function(){return this.values()});return t}()};y(o,G);if(o.Map||o.Set){if(typeof o.Map.prototype.clear!=="function"||(new o.Set).size!==0||(new o.Map).size!==0||typeof o.Map.prototype.keys!=="function"||typeof o.Set.prototype.keys!=="function"||typeof o.Map.prototype.forEach!=="function"||typeof o.Set.prototype.forEach!=="function"||t(o.Map)||t(o.Set)||!r(o.Map,function(e){return new e([])instanceof e})){o.Map=G.Map;o.Set=G.Set}}m(Object.getPrototypeOf((new o.Map).keys()));m(Object.getPrototypeOf((new o.Set).keys()))}};if(typeof define==="function"&&define.amd){define(o)}else{o()}})();
+//# sourceMappingURL=es6-shim.map
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.14.0/es6-shim.js b/ajax/libs/es6-shim/0.14.0/es6-shim.js
new file mode 100644
index 000000000..8b5b03801
--- /dev/null
+++ b/ajax/libs/es6-shim/0.14.0/es6-shim.js
@@ -0,0 +1,1882 @@
+// ES6-shim 0.14.0 (c) 2013-2014 Paul Miller (http://paulmillr.com)
+// ES6-shim may be freely distributed under the MIT license.
+// For more details and documentation:
+// https://github.com/paulmillr/es6-shim/
+
+(function(undefined) {
+  'use strict';
+
+  var isCallableWithoutNew = function(func) {
+    try { func(); }
+    catch (e) { return false; }
+    return true;
+  };
+
+  var supportsSubclassing = function(C, f) {
+    /* jshint proto:true */
+    try {
+      var Sub = function() { C.apply(this, arguments); };
+      if (!Sub.__proto__) { return false; /* skip test on IE < 11 */ }
+      Object.setPrototypeOf(Sub, C);
+      Sub.prototype = Object.create(C.prototype, {
+        constructor: { value: C }
+      });
+      return f(Sub);
+    } catch (e) {
+      return false;
+    }
+  };
+
+  var arePropertyDescriptorsSupported = function() {
+    try {
+      Object.defineProperty({}, 'x', {});
+      return true;
+    } catch (e) { /* this is IE 8. */
+      return false;
+    }
+  };
+
+  var startsWithRejectsRegex = function() {
+    var rejectsRegex = false;
+    if (String.prototype.startsWith) {
+      try {
+        '/a/'.startsWith(/a/);
+      } catch (e) { /* this is spec compliant */
+        rejectsRegex = true;
+      }
+    }
+    return rejectsRegex;
+  };
+
+  /*jshint evil: true */
+  var getGlobal = new Function('return this;');
+  /*jshint evil: false */
+
+  var main = function() {
+    var globals = getGlobal();
+    var global_isFinite = globals.isFinite;
+    var supportsDescriptors = !!Object.defineProperty && arePropertyDescriptorsSupported();
+    var startsWithIsCompliant = startsWithRejectsRegex();
+    var _slice = Array.prototype.slice;
+    var _indexOf = String.prototype.indexOf;
+    var _toString = Object.prototype.toString;
+    var _hasOwnProperty = Object.prototype.hasOwnProperty;
+    var ArrayIterator; // make our implementation private
+
+    // Define configurable, writable and non-enumerable props
+    // if they don’t exist.
+    var defineProperties = function(object, map) {
+      Object.keys(map).forEach(function(name) {
+        var method = map[name];
+        if (name in object) return;
+        if (supportsDescriptors) {
+          Object.defineProperty(object, name, {
+            configurable: true,
+            enumerable: false,
+            writable: true,
+            value: method
+          });
+        } else {
+          object[name] = method;
+        }
+      });
+    };
+
+    // Simple shim for Object.create on ES3 browsers
+    // (unlike real shim, no attempt to support `prototype === null`)
+    var create = Object.create || function(prototype, properties) {
+      function Type() {}
+      Type.prototype = prototype;
+      var object = new Type();
+      if (typeof properties !== "undefined") {
+        defineProperties(object, properties);
+      }
+      return object;
+    };
+
+    // This is a private name in the es6 spec, equal to '[Symbol.iterator]'
+    // we're going to use an arbitrary _-prefixed name to make our shims
+    // work properly with each other, even though we don't have full Iterator
+    // support.  That is, `Array.from(map.keys())` will work, but we don't
+    // pretend to export a "real" Iterator interface.
+    var $iterator$ = (typeof Symbol === 'function' && Symbol.iterator) ||
+      '_es6shim_iterator_';
+    // Firefox ships a partial implementation using the name @@iterator.
+    // https://bugzilla.mozilla.org/show_bug.cgi?id=907077#c14
+    // So use that name if we detect it.
+    if (globals.Set && typeof new globals.Set()['@@iterator'] === 'function') {
+      $iterator$ = '@@iterator';
+    }
+    var addIterator = function(prototype, impl) {
+      if (!impl) { impl = function iterator() { return this; }; }
+      var o = {};
+      o[$iterator$] = impl;
+      defineProperties(prototype, o);
+    };
+
+    // taken directly from https://github.com/ljharb/is-arguments/blob/master/index.js
+    // can be replaced with require('is-arguments') if we ever use a build process instead
+    var isArguments = function isArguments(value) {
+      var str = _toString.call(value);
+      var result = str === '[object Arguments]';
+      if (!result) {
+        result = str !== '[object Array]' &&
+          value !== null &&
+          typeof value === 'object' &&
+          typeof value.length === 'number' &&
+          value.length >= 0 &&
+          _toString.call(value.callee) === '[object Function]';
+      }
+      return result;
+    };
+
+    var emulateES6construct = function(o) {
+      if (!ES.TypeIsObject(o)) throw new TypeError('bad object');
+      // es5 approximation to es6 subclass semantics: in es6, 'new Foo'
+      // would invoke Foo.@@create to allocation/initialize the new object.
+      // In es5 we just get the plain object.  So if we detect an
+      // uninitialized object, invoke o.constructor.@@create
+      if (!o._es6construct) {
+        if (o.constructor && ES.IsCallable(o.constructor['@@create'])) {
+          o = o.constructor['@@create'](o);
+        }
+        defineProperties(o, { _es6construct: true });
+      }
+      return o;
+    };
+
+    var ES = {
+      CheckObjectCoercible: function(x, optMessage) {
+        /* jshint eqnull:true */
+        if (x == null)
+          throw new TypeError(optMessage || ('Cannot call method on ' + x));
+        return x;
+      },
+
+      TypeIsObject: function(x) {
+        /* jshint eqnull:true */
+        // this is expensive when it returns false; use this function
+        // when you expect it to return true in the common case.
+        return x != null && Object(x) === x;
+      },
+
+      ToObject: function(o, optMessage) {
+        return Object(ES.CheckObjectCoercible(o, optMessage));
+      },
+
+      IsCallable: function(x) {
+        return typeof x === 'function' &&
+          // some versions of IE say that typeof /abc/ === 'function'
+          _toString.call(x) === '[object Function]';
+      },
+
+      ToInt32: function(x) {
+        return x >> 0;
+      },
+
+      ToUint32: function(x) {
+        return x >>> 0;
+      },
+
+      ToInteger: function(value) {
+        var number = +value;
+        if (Number.isNaN(number)) return 0;
+        if (number === 0 || !Number.isFinite(number)) return number;
+        return Math.sign(number) * Math.floor(Math.abs(number));
+      },
+
+      ToLength: function(value) {
+        var len = ES.ToInteger(value);
+        if (len <= 0) return 0; // includes converting -0 to +0
+        if (len > Number.MAX_SAFE_INTEGER) return Number.MAX_SAFE_INTEGER;
+        return len;
+      },
+
+      SameValue: function(a, b) {
+        if (a === b) {
+          // 0 === -0, but they are not identical.
+          if (a === 0) return 1 / a === 1 / b;
+          return true;
+        }
+        return Number.isNaN(a) && Number.isNaN(b);
+      },
+
+      SameValueZero: function(a, b) {
+        // same as SameValue except for SameValueZero(+0, -0) == true
+        return (a === b) || (Number.isNaN(a) && Number.isNaN(b));
+      },
+
+      IsIterable: function(o) {
+        return ES.TypeIsObject(o) &&
+          (o[$iterator$] !== undefined || isArguments(o));
+      },
+
+      GetIterator: function(o) {
+        if (isArguments(o)) {
+          // special case support for `arguments`
+          return new ArrayIterator(o, "value");
+        }
+        var it = o[$iterator$]();
+        if (!ES.TypeIsObject(it)) {
+          throw new TypeError('bad iterator');
+        }
+        return it;
+      },
+
+      IteratorNext: function(it) {
+        var result = (arguments.length > 1) ? it.next(arguments[1]) : it.next();
+        if (!ES.TypeIsObject(result)) {
+          throw new TypeError('bad iterator');
+        }
+        return result;
+      },
+
+      Construct: function(C, args) {
+        // CreateFromConstructor
+        var obj;
+        if (ES.IsCallable(C['@@create'])) {
+          obj = C['@@create']();
+        } else {
+          // OrdinaryCreateFromConstructor
+          obj = create(C.prototype || null);
+        }
+        // Mark that we've used the es6 construct path
+        // (see emulateES6construct)
+        defineProperties(obj, { _es6construct: true });
+        // Call the constructor.
+        var result = C.apply(obj, args);
+        return ES.TypeIsObject(result) ? result : obj;
+      }
+    };
+
+    var numberConversion = (function () {
+      // from https://github.com/inexorabletash/polyfill/blob/master/typedarray.js#L176-L266
+      // with permission and license, per https://twitter.com/inexorabletash/status/372206509540659200
+
+      function roundToEven(n) {
+        var w = Math.floor(n), f = n - w;
+        if (f < 0.5) {
+          return w;
+        }
+        if (f > 0.5) {
+          return w + 1;
+        }
+        return w % 2 ? w + 1 : w;
+      }
+
+      function packIEEE754(v, ebits, fbits) {
+        var bias = (1 << (ebits - 1)) - 1,
+          s, e, f, ln,
+          i, bits, str, bytes;
+
+        // Compute sign, exponent, fraction
+        if (v !== v) {
+          // NaN
+          // http://dev.w3.org/2006/webapi/WebIDL/#es-type-mapping
+          e = (1 << ebits) - 1;
+          f = Math.pow(2, fbits - 1);
+          s = 0;
+        } else if (v === Infinity || v === -Infinity) {
+          e = (1 << ebits) - 1;
+          f = 0;
+          s = (v < 0) ? 1 : 0;
+        } else if (v === 0) {
+          e = 0;
+          f = 0;
+          s = (1 / v === -Infinity) ? 1 : 0;
+        } else {
+          s = v < 0;
+          v = Math.abs(v);
+
+          if (v >= Math.pow(2, 1 - bias)) {
+            e = Math.min(Math.floor(Math.log(v) / Math.LN2), 1023);
+            f = roundToEven(v / Math.pow(2, e) * Math.pow(2, fbits));
+            if (f / Math.pow(2, fbits) >= 2) {
+              e = e + 1;
+              f = 1;
+            }
+            if (e > bias) {
+              // Overflow
+              e = (1 << ebits) - 1;
+              f = 0;
+            } else {
+              // Normal
+              e = e + bias;
+              f = f - Math.pow(2, fbits);
+            }
+          } else {
+            // Subnormal
+            e = 0;
+            f = roundToEven(v / Math.pow(2, 1 - bias - fbits));
+          }
+        }
+
+        // Pack sign, exponent, fraction
+        bits = [];
+        for (i = fbits; i; i -= 1) {
+          bits.push(f % 2 ? 1 : 0);
+          f = Math.floor(f / 2);
+        }
+        for (i = ebits; i; i -= 1) {
+          bits.push(e % 2 ? 1 : 0);
+          e = Math.floor(e / 2);
+        }
+        bits.push(s ? 1 : 0);
+        bits.reverse();
+        str = bits.join('');
+
+        // Bits to bytes
+        bytes = [];
+        while (str.length) {
+          bytes.push(parseInt(str.slice(0, 8), 2));
+          str = str.slice(8);
+        }
+        return bytes;
+      }
+
+      function unpackIEEE754(bytes, ebits, fbits) {
+        // Bytes to bits
+        var bits = [], i, j, b, str,
+            bias, s, e, f;
+
+        for (i = bytes.length; i; i -= 1) {
+          b = bytes[i - 1];
+          for (j = 8; j; j -= 1) {
+            bits.push(b % 2 ? 1 : 0);
+            b = b >> 1;
+          }
+        }
+        bits.reverse();
+        str = bits.join('');
+
+        // Unpack sign, exponent, fraction
+        bias = (1 << (ebits - 1)) - 1;
+        s = parseInt(str.slice(0, 1), 2) ? -1 : 1;
+        e = parseInt(str.slice(1, 1 + ebits), 2);
+        f = parseInt(str.slice(1 + ebits), 2);
+
+        // Produce number
+        if (e === (1 << ebits) - 1) {
+          return f !== 0 ? NaN : s * Infinity;
+        } else if (e > 0) {
+          // Normalized
+          return s * Math.pow(2, e - bias) * (1 + f / Math.pow(2, fbits));
+        } else if (f !== 0) {
+          // Denormalized
+          return s * Math.pow(2, -(bias - 1)) * (f / Math.pow(2, fbits));
+        } else {
+          return s < 0 ? -0 : 0;
+        }
+      }
+
+      function unpackFloat64(b) { return unpackIEEE754(b, 11, 52); }
+      function packFloat64(v) { return packIEEE754(v, 11, 52); }
+      function unpackFloat32(b) { return unpackIEEE754(b, 8, 23); }
+      function packFloat32(v) { return packIEEE754(v, 8, 23); }
+
+      var conversions = {
+        toFloat32: function (num) { return unpackFloat32(packFloat32(num)); }
+      };
+      if (typeof Float32Array !== 'undefined') {
+        var float32array = new Float32Array(1);
+        conversions.toFloat32 = function (num) {
+          float32array[0] = num;
+          return float32array[0];
+        };
+      }
+      return conversions;
+    }());
+
+    defineProperties(String, {
+      fromCodePoint: function(_) { // length = 1
+        var points = _slice.call(arguments, 0, arguments.length);
+        var result = [];
+        var next;
+        for (var i = 0, length = points.length; i < length; i++) {
+          next = Number(points[i]);
+          if (!ES.SameValue(next, ES.ToInteger(next)) ||
+              next < 0 || next > 0x10FFFF) {
+            throw new RangeError('Invalid code point ' + next);
+          }
+
+          if (next < 0x10000) {
+            result.push(String.fromCharCode(next));
+          } else {
+            next -= 0x10000;
+            result.push(String.fromCharCode((next >> 10) + 0xD800));
+            result.push(String.fromCharCode((next % 0x400) + 0xDC00));
+          }
+        }
+        return result.join('');
+      },
+
+      raw: function(callSite) { // raw.length===1
+        var substitutions = _slice.call(arguments, 1, arguments.length);
+        var cooked = ES.ToObject(callSite, 'bad callSite');
+        var rawValue = cooked.raw;
+        var raw = ES.ToObject(rawValue, 'bad raw value');
+        var len = Object.keys(raw).length;
+        var literalsegments = ES.ToLength(len);
+        if (literalsegments === 0) {
+          return '';
+        }
+
+        var stringElements = [];
+        var nextIndex = 0;
+        var nextKey, next, nextSeg, nextSub;
+        while (nextIndex < literalsegments) {
+          nextKey = String(nextIndex);
+          next = raw[nextKey];
+          nextSeg = String(next);
+          stringElements.push(nextSeg);
+          if (nextIndex + 1 >= literalsegments) {
+            break;
+          }
+          next = substitutions[nextKey];
+          if (next === undefined) {
+            break;
+          }
+          nextSub = String(next);
+          stringElements.push(nextSub);
+          nextIndex++;
+        }
+        return stringElements.join('');
+      }
+    });
+
+    var StringShims = {
+      // Fast repeat, uses the `Exponentiation by squaring` algorithm.
+      // Perf: http://jsperf.com/string-repeat2/2
+      repeat: (function() {
+        var repeat = function(s, times) {
+          if (times < 1) return '';
+          if (times % 2) return repeat(s, times - 1) + s;
+          var half = repeat(s, times / 2);
+          return half + half;
+        };
+
+        return function(times) {
+          var thisStr = String(ES.CheckObjectCoercible(this));
+          times = ES.ToInteger(times);
+          if (times < 0 || times === Infinity) {
+            throw new RangeError('Invalid String#repeat value');
+          }
+          return repeat(thisStr, times);
+        };
+      })(),
+
+      startsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "startsWith" with a regex');
+        searchStr = String(searchStr);
+        var startArg = arguments.length > 1 ? arguments[1] : undefined;
+        var start = Math.max(ES.ToInteger(startArg), 0);
+        return thisStr.slice(start, start + searchStr.length) === searchStr;
+      },
+
+      endsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "endsWith" with a regex');
+        searchStr = String(searchStr);
+        var thisLen = thisStr.length;
+        var posArg = arguments.length > 1 ? arguments[1] : undefined;
+        var pos = posArg === undefined ? thisLen : ES.ToInteger(posArg);
+        var end = Math.min(Math.max(pos, 0), thisLen);
+        return thisStr.slice(end - searchStr.length, end) === searchStr;
+      },
+
+      contains: function(searchString) {
+        var position = arguments.length > 1 ? arguments[1] : undefined;
+        // Somehow this trick makes method 100% compat with the spec.
+        return _indexOf.call(this, searchString, position) !== -1;
+      },
+
+      codePointAt: function(pos) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        var position = ES.ToInteger(pos);
+        var length = thisStr.length;
+        if (position < 0 || position >= length) return undefined;
+        var first = thisStr.charCodeAt(position);
+        var isEnd = (position + 1 === length);
+        if (first < 0xD800 || first > 0xDBFF || isEnd) return first;
+        var second = thisStr.charCodeAt(position + 1);
+        if (second < 0xDC00 || second > 0xDFFF) return first;
+        return ((first - 0xD800) * 1024) + (second - 0xDC00) + 0x10000;
+      }
+    };
+    defineProperties(String.prototype, StringShims);
+
+    var hasStringTrimBug = '\u0085'.trim().length !== 1;
+    if (hasStringTrimBug) {
+      var originalStringTrim = String.prototype.trim;
+      delete String.prototype.trim;
+      // whitespace from: http://es5.github.io/#x15.5.4.20
+      // implementation from https://github.com/es-shims/es5-shim/blob/v3.4.0/es5-shim.js#L1304-L1324
+      var ws = [
+        '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003',
+        '\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028',
+        '\u2029\uFEFF'
+      ].join('');
+      var trimBeginRegexp = new RegExp('^[' + ws + '][' + ws + ']*');
+      var trimEndRegexp = new RegExp('[' + ws + '][' + ws + ']*$');
+      defineProperties(String.prototype, {
+        trim: function() {
+          if (this === undefined || this === null) {
+            throw new TypeError("can't convert " + this + " to object");
+          }
+          return String(this)
+            .replace(trimBeginRegexp, "")
+            .replace(trimEndRegexp, "");
+          }
+      });
+    }
+
+    // see https://people.mozilla.org/~jorendorff/es6-draft.html#sec-string.prototype-@@iterator
+    var StringIterator = function(s) {
+      this._s = String(ES.CheckObjectCoercible(s));
+      this._i = 0;
+    };
+    StringIterator.prototype.next = function() {
+      var s = this._s, i = this._i;
+      if (s === undefined || i >= s.length) {
+        this._s = undefined;
+        return { value: undefined, done: true };
+      }
+      var first = s.charCodeAt(i), second, len;
+      if (first < 0xD800 || first > 0xDBFF || (i+1) == s.length) {
+        len = 1;
+      } else {
+        second = s.charCodeAt(i+1);
+        len = (second < 0xDC00 || second > 0xDFFF) ? 1 : 2;
+      }
+      this._i = i + len;
+      return { value: s.substr(i, len), done: false };
+    };
+    addIterator(StringIterator.prototype);
+    addIterator(String.prototype, function() {
+      return new StringIterator(this);
+    });
+
+    if (!startsWithIsCompliant) {
+      // Firefox has a noncompliant startsWith implementation
+      String.prototype.startsWith = StringShims.startsWith;
+      String.prototype.endsWith = StringShims.endsWith;
+    }
+
+    defineProperties(Array, {
+      from: function(iterable) {
+        var mapFn = arguments.length > 1 ? arguments[1] : undefined;
+        var thisArg = arguments.length > 2 ? arguments[2] : undefined;
+
+        var list = ES.ToObject(iterable, 'bad iterable');
+        if (mapFn !== undefined && !ES.IsCallable(mapFn)) {
+          throw new TypeError('Array.from: when provided, the second argument must be a function');
+        }
+
+        var usingIterator = ES.IsIterable(list);
+        // does the spec really mean that Arrays should use ArrayIterator?
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2416
+        //if (Array.isArray(list)) { usingIterator=false; }
+        var length = usingIterator ? 0 : ES.ToLength(list.length);
+        var result = ES.IsCallable(this) ? Object(usingIterator ? new this() : new this(length)) : new Array(length);
+        var it = usingIterator ? ES.GetIterator(list) : null;
+        var value;
+
+        for (var i = 0; usingIterator || (i < length); i++) {
+          if (usingIterator) {
+            value = ES.IteratorNext(it);
+            if (value.done) {
+              length = i;
+              break;
+            }
+            value = value.value;
+          } else {
+            value = list[i];
+          }
+          if (mapFn) {
+            result[i] = thisArg ? mapFn.call(thisArg, value, i) : mapFn(value, i);
+          } else {
+            result[i] = value;
+          }
+        }
+
+        result.length = length;
+        return result;
+      },
+
+      of: function() {
+        return Array.from(arguments);
+      }
+    });
+
+    // Our ArrayIterator is private; see
+    // https://github.com/paulmillr/es6-shim/issues/252
+    ArrayIterator = function(array, kind) {
+        this.i = 0;
+        this.array = array;
+        this.kind = kind;
+    };
+
+    defineProperties(ArrayIterator.prototype, {
+      next: function() {
+        var i = this.i, array = this.array;
+        if (i === undefined || this.kind === undefined) {
+          throw new TypeError('Not an ArrayIterator');
+        }
+        if (array!==undefined) {
+          var len = ES.ToLength(array.length);
+          for (; i < len; i++) {
+            var kind = this.kind;
+            var retval;
+            if (kind === "key") {
+              retval = i;
+            } else if (kind === "value") {
+              retval = array[i];
+            } else if (kind === "entry") {
+              retval = [i, array[i]];
+            }
+            this.i = i + 1;
+            return { value: retval, done: false };
+          }
+        }
+        this.array = undefined;
+        return { value: undefined, done: true };
+      }
+    });
+    addIterator(ArrayIterator.prototype);
+
+    defineProperties(Array.prototype, {
+      copyWithin: function(target, start) {
+        var end = arguments[2]; // copyWithin.length must be 2
+        var o = ES.ToObject(this);
+        var len = ES.ToLength(o.length);
+        target = ES.ToInteger(target);
+        start = ES.ToInteger(start);
+        var to = target < 0 ? Math.max(len + target, 0) : Math.min(target, len);
+        var from = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+        end = (end===undefined) ? len : ES.ToInteger(end);
+        var fin = end < 0 ? Math.max(len + end, 0) : Math.min(end, len);
+        var count = Math.min(fin - from, len - to);
+        var direction = 1;
+        if (from < to && to < (from + count)) {
+          direction = -1;
+          from += count - 1;
+          to += count - 1;
+        }
+        while (count > 0) {
+          if (_hasOwnProperty.call(o, from)) {
+            o[to] = o[from];
+          } else {
+            delete o[from];
+          }
+          from += direction;
+          to += direction;
+          count -= 1;
+        }
+        return o;
+      },
+
+      fill: function(value) {
+        var start = arguments.length > 1 ? arguments[1] : undefined;
+        var end = arguments.length > 2 ? arguments[2] : undefined;
+        var O = ES.ToObject(this);
+        var len = ES.ToLength(O.length);
+        start = ES.ToInteger(start === undefined ? 0 : start);
+        end = ES.ToInteger(end === undefined ? len : end);
+
+        var relativeStart = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+        var relativeEnd = end < 0 ? len + end : end;
+
+        for (var i = relativeStart; i < len && i < relativeEnd; ++i) {
+          O[i] = value;
+        }
+        return O;
+      },
+
+      find: function(predicate) {
+        var list = ES.ToObject(this);
+        var length = ES.ToLength(list.length);
+        if (!ES.IsCallable(predicate)) {
+          throw new TypeError('Array#find: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0, value; i < length; i++) {
+          if (i in list) {
+            value = list[i];
+            if (predicate.call(thisArg, value, i, list)) return value;
+          }
+        }
+        return undefined;
+      },
+
+      findIndex: function(predicate) {
+        var list = ES.ToObject(this);
+        var length = ES.ToLength(list.length);
+        if (!ES.IsCallable(predicate)) {
+          throw new TypeError('Array#findIndex: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0; i < length; i++) {
+          if (i in list) {
+            if (predicate.call(thisArg, list[i], i, list)) return i;
+          }
+        }
+        return -1;
+      },
+
+      keys: function() {
+        return new ArrayIterator(this, "key");
+      },
+
+      values: function() {
+        return new ArrayIterator(this, "value");
+      },
+
+      entries: function() {
+        return new ArrayIterator(this, "entry");
+      }
+    });
+    addIterator(Array.prototype, function() { return this.values(); });
+    // Chrome defines keys/values/entries on Array, but doesn't give us
+    // any way to identify its iterator.  So add our own shimmed field.
+    if (Object.getPrototypeOf) {
+      addIterator(Object.getPrototypeOf([].values()));
+    }
+
+    var maxSafeInteger = Math.pow(2, 53) - 1;
+    defineProperties(Number, {
+      MAX_SAFE_INTEGER: maxSafeInteger,
+      MIN_SAFE_INTEGER: -maxSafeInteger,
+      EPSILON: 2.220446049250313e-16,
+
+      parseInt: globals.parseInt,
+      parseFloat: globals.parseFloat,
+
+      isFinite: function(value) {
+        return typeof value === 'number' && global_isFinite(value);
+      },
+
+      isInteger: function(value) {
+        return Number.isFinite(value) &&
+          ES.ToInteger(value) === value;
+      },
+
+      isSafeInteger: function(value) {
+        return Number.isInteger(value) && Math.abs(value) <= Number.MAX_SAFE_INTEGER;
+      },
+
+      isNaN: function(value) {
+        // NaN !== NaN, but they are identical.
+        // NaNs are the only non-reflexive value, i.e., if x !== x,
+        // then x is NaN.
+        // isNaN is broken: it converts its argument to number, so
+        // isNaN('foo') => true
+        return value !== value;
+      }
+
+    });
+
+    if (supportsDescriptors) {
+      defineProperties(Object, {
+        getPropertyDescriptor: function(subject, name) {
+          var pd = Object.getOwnPropertyDescriptor(subject, name);
+          var proto = Object.getPrototypeOf(subject);
+          while (pd === undefined && proto !== null) {
+            pd = Object.getOwnPropertyDescriptor(proto, name);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return pd;
+        },
+
+        getPropertyNames: function(subject) {
+          var result = Object.getOwnPropertyNames(subject);
+          var proto = Object.getPrototypeOf(subject);
+
+          var addProperty = function(property) {
+            if (result.indexOf(property) === -1) {
+              result.push(property);
+            }
+          };
+
+          while (proto !== null) {
+            Object.getOwnPropertyNames(proto).forEach(addProperty);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return result;
+        }
+      });
+
+      defineProperties(Object, {
+        // 19.1.3.1
+        assign: function(target, source) {
+          if (!ES.TypeIsObject(target)) {
+            throw new TypeError('target must be an object');
+          }
+          return Array.prototype.reduce.call(arguments, function(target, source) {
+            if (!ES.TypeIsObject(source)) {
+              throw new TypeError('source must be an object');
+            }
+            return Object.keys(source).reduce(function(target, key) {
+              target[key] = source[key];
+              return target;
+            }, target);
+          });
+        },
+
+        is: function(a, b) {
+          return ES.SameValue(a, b);
+        },
+
+        // 19.1.3.9
+        // shim from https://gist.github.com/WebReflection/5593554
+        setPrototypeOf: (function(Object, magic) {
+          var set;
+
+          var checkArgs = function(O, proto) {
+            if (!ES.TypeIsObject(O)) {
+              throw new TypeError('cannot set prototype on a non-object');
+            }
+            if (!(proto===null || ES.TypeIsObject(proto))) {
+              throw new TypeError('can only set prototype to an object or null'+proto);
+            }
+          };
+
+          var setPrototypeOf = function(O, proto) {
+            checkArgs(O, proto);
+            set.call(O, proto);
+            return O;
+          };
+
+          try {
+            // this works already in Firefox and Safari
+            set = Object.getOwnPropertyDescriptor(Object.prototype, magic).set;
+            set.call({}, null);
+          } catch (e) {
+            if (Object.prototype !== {}[magic]) {
+              // IE < 11 cannot be shimmed
+              return;
+            }
+            // probably Chrome or some old Mobile stock browser
+            set = function(proto) {
+              this[magic] = proto;
+            };
+            // please note that this will **not** work
+            // in those browsers that do not inherit
+            // __proto__ by mistake from Object.prototype
+            // in these cases we should probably throw an error
+            // or at least be informed about the issue
+            setPrototypeOf.polyfill = setPrototypeOf(
+              setPrototypeOf({}, null),
+              Object.prototype
+            ) instanceof Object;
+            // setPrototypeOf.polyfill === true means it works as meant
+            // setPrototypeOf.polyfill === false means it's not 100% reliable
+            // setPrototypeOf.polyfill === undefined
+            // or
+            // setPrototypeOf.polyfill ==  null means it's not a polyfill
+            // which means it works as expected
+            // we can even delete Object.prototype.__proto__;
+          }
+          return setPrototypeOf;
+        })(Object, '__proto__')
+      });
+    }
+
+    // Workaround bug in Opera 12 where setPrototypeOf(x, null) doesn't work,
+    // but Object.create(null) does.
+    if (Object.setPrototypeOf && Object.getPrototypeOf &&
+        Object.getPrototypeOf(Object.setPrototypeOf({}, null)) !== null &&
+        Object.getPrototypeOf(Object.create(null)) === null) {
+      (function() {
+        var FAKENULL = Object.create(null);
+        var gpo = Object.getPrototypeOf, spo = Object.setPrototypeOf;
+        Object.getPrototypeOf = function(o) {
+          var result = gpo(o);
+          return result === FAKENULL ? null : result;
+        };
+        Object.setPrototypeOf = function(o, p) {
+          if (p === null) { p = FAKENULL; }
+          return spo(o, p);
+        };
+        Object.setPrototypeOf.polyfill = false;
+      })();
+    }
+
+    try {
+      Object.keys('foo');
+    } catch (e) {
+      var originalObjectKeys = Object.keys;
+      Object.keys = function (obj) {
+        return originalObjectKeys(ES.ToObject(obj));
+      };
+    }
+
+    var MathShims = {
+      acosh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < 1) return NaN;
+        if (value === 1) return 0;
+        if (value === Infinity) return value;
+        return Math.log(value + Math.sqrt(value * value - 1));
+      },
+
+      asinh: function(value) {
+        value = Number(value);
+        if (value === 0 || !global_isFinite(value)) {
+          return value;
+        }
+        return value < 0 ? -Math.asinh(-value) : Math.log(value + Math.sqrt(value * value + 1));
+      },
+
+      atanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < -1 || value > 1) {
+          return NaN;
+        }
+        if (value === -1) return -Infinity;
+        if (value === 1) return Infinity;
+        if (value === 0) return value;
+        return 0.5 * Math.log((1 + value) / (1 - value));
+      },
+
+      cbrt: function(value) {
+        value = Number(value);
+        if (value === 0) return value;
+        var negate = value < 0, result;
+        if (negate) value = -value;
+        result = Math.pow(value, 1/3);
+        return negate ? -result : result;
+      },
+
+      clz32: function(value) {
+        // See https://bugs.ecmascript.org/show_bug.cgi?id=2465
+        value = Number(value);
+        var number = ES.ToUint32(value);
+        if (number === 0) {
+          return 32;
+        }
+        return 32 - (number).toString(2).length;
+      },
+
+      cosh: function(value) {
+        value = Number(value);
+        if (value === 0) return 1; // +0 or -0
+        if (Number.isNaN(value)) return NaN;
+        if (!global_isFinite(value)) return Infinity;
+        if (value < 0) value = -value;
+        if (value > 21) return Math.exp(value) / 2;
+        return (Math.exp(value) + Math.exp(-value)) / 2;
+      },
+
+      expm1: function(value) {
+        value = Number(value);
+        if (value === -Infinity) return -1;
+        if (!global_isFinite(value) || value === 0) return value;
+        return Math.exp(value) - 1;
+      },
+
+      hypot: function(x, y) {
+        var anyNaN = false;
+        var allZero = true;
+        var anyInfinity = false;
+        var numbers = [];
+        Array.prototype.every.call(arguments, function(arg) {
+          var num = Number(arg);
+          if (Number.isNaN(num)) anyNaN = true;
+          else if (num === Infinity || num === -Infinity) anyInfinity = true;
+          else if (num !== 0) allZero = false;
+          if (anyInfinity) {
+            return false;
+          } else if (!anyNaN) {
+            numbers.push(Math.abs(num));
+          }
+          return true;
+        });
+        if (anyInfinity) return Infinity;
+        if (anyNaN) return NaN;
+        if (allZero) return 0;
+
+        numbers.sort(function (a, b) { return b - a; });
+        var largest = numbers[0];
+        var divided = numbers.map(function (number) { return number / largest; });
+        var sum = divided.reduce(function (sum, number) { return sum += number * number; }, 0);
+        return largest * Math.sqrt(sum);
+      },
+
+      log2: function(value) {
+        return Math.log(value) * Math.LOG2E;
+      },
+
+      log10: function(value) {
+        return Math.log(value) * Math.LOG10E;
+      },
+
+      log1p: function(value) {
+        value = Number(value);
+        if (value < -1 || Number.isNaN(value)) return NaN;
+        if (value === 0 || value === Infinity) return value;
+        if (value === -1) return -Infinity;
+        var result = 0;
+        var n = 50;
+
+        if (value < 0 || value > 1) return Math.log(1 + value);
+        for (var i = 1; i < n; i++) {
+          if ((i % 2) === 0) {
+            result -= Math.pow(value, i) / i;
+          } else {
+            result += Math.pow(value, i) / i;
+          }
+        }
+
+        return result;
+      },
+
+      sign: function(value) {
+        var number = +value;
+        if (number === 0) return number;
+        if (Number.isNaN(number)) return number;
+        return number < 0 ? -1 : 1;
+      },
+
+      sinh: function(value) {
+        value = Number(value);
+        if (!global_isFinite(value) || value === 0) return value;
+        return (Math.exp(value) - Math.exp(-value)) / 2;
+      },
+
+      tanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value === 0) return value;
+        if (value === Infinity) return 1;
+        if (value === -Infinity) return -1;
+        return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+      },
+
+      trunc: function(value) {
+        var number = Number(value);
+        return number < 0 ? -Math.floor(-number) : Math.floor(number);
+      },
+
+      imul: function(x, y) {
+        // taken from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
+        x = ES.ToUint32(x);
+        y = ES.ToUint32(y);
+        var ah  = (x >>> 16) & 0xffff;
+        var al = x & 0xffff;
+        var bh  = (y >>> 16) & 0xffff;
+        var bl = y & 0xffff;
+        // the shift by 0 fixes the sign on the high part
+        // the final |0 converts the unsigned value into a signed value
+        return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);
+      },
+
+      fround: function(x) {
+        if (x === 0 || x === Infinity || x === -Infinity || Number.isNaN(x)) {
+          return x;
+        }
+        var num = Number(x);
+        return numberConversion.toFloat32(num);
+      }
+    };
+    defineProperties(Math, MathShims);
+
+    if (Math.imul(0xffffffff, 5) !== -5) {
+      // Safari 6.1, at least, reports "0" for this value
+      Math.imul = MathShims.imul;
+    }
+
+    // Promises
+    // Simplest possible implementation; use a 3rd-party library if you
+    // want the best possible speed and/or long stack traces.
+    var PromiseShim = (function() {
+
+      var Promise, Promise$prototype;
+
+      ES.IsPromise = function(promise) {
+        if (!ES.TypeIsObject(promise)) {
+          return false;
+        }
+        if (!promise._promiseConstructor) {
+          // _promiseConstructor is a bit more unique than _status, so we'll
+          // check that instead of the [[PromiseStatus]] internal field.
+          return false;
+        }
+        if (promise._status === undefined) {
+          return false; // uninitialized
+        }
+        return true;
+      };
+
+      // "PromiseCapability" in the spec is what most promise implementations
+      // call a "deferred".
+      var PromiseCapability = function(C) {
+        if (!ES.IsCallable(C)) {
+          throw new TypeError('bad promise constructor');
+        }
+        var capability = this;
+        var resolver = function(resolve, reject) {
+          capability.resolve = resolve;
+          capability.reject = reject;
+        };
+        capability.promise = ES.Construct(C, [resolver]);
+        // see https://bugs.ecmascript.org/show_bug.cgi?id=2478
+        if (!capability.promise._es6construct) {
+          throw new TypeError('bad promise constructor');
+        }
+        if (!(ES.IsCallable(capability.resolve) &&
+              ES.IsCallable(capability.reject))) {
+          throw new TypeError('bad promise constructor');
+        }
+      };
+
+      // find an appropriate setImmediate-alike
+      var setTimeout = globals.setTimeout;
+      var makeZeroTimeout;
+      if (typeof window !== 'undefined' && ES.IsCallable(window.postMessage)) {
+        makeZeroTimeout = function() {
+          // from http://dbaron.org/log/20100309-faster-timeouts
+          var timeouts = [];
+          var messageName = "zero-timeout-message";
+          var setZeroTimeout = function(fn) {
+            timeouts.push(fn);
+            window.postMessage(messageName, "*");
+          };
+          var handleMessage = function(event) {
+            if (event.source == window && event.data == messageName) {
+              event.stopPropagation();
+              if (timeouts.length === 0) { return; }
+              var fn = timeouts.shift();
+              fn();
+            }
+          };
+          window.addEventListener("message", handleMessage, true);
+          return setZeroTimeout;
+        };
+      }
+      var makePromiseAsap = function() {
+        // An efficient task-scheduler based on a pre-existing Promise
+        // implementation, which we can use even if we override the
+        // global Promise below (in order to workaround bugs)
+        // https://github.com/Raynos/observ-hash/issues/2#issuecomment-35857671
+        var P = globals.Promise;
+        return P && P.resolve && function(task) {
+          return P.resolve().then(task);
+        };
+      };
+      var enqueue = ES.IsCallable(globals.setImmediate) ?
+        globals.setImmediate.bind(globals) :
+        typeof process === 'object' && process.nextTick ? process.nextTick :
+        makePromiseAsap() ||
+        (ES.IsCallable(makeZeroTimeout) ? makeZeroTimeout() :
+        function(task) { setTimeout(task, 0); }); // fallback
+
+      var triggerPromiseReactions = function(reactions, x) {
+        reactions.forEach(function(reaction) {
+          enqueue(function() {
+            // PromiseReactionTask
+            var handler = reaction.handler;
+            var capability = reaction.capability;
+            var resolve = capability.resolve;
+            var reject = capability.reject;
+            try {
+              var result = handler(x);
+              if (result === capability.promise) {
+                throw new TypeError('self resolution');
+              }
+              var updateResult =
+                updatePromiseFromPotentialThenable(result, capability);
+              if (!updateResult) {
+                resolve(result);
+              }
+            } catch (e) {
+              reject(e);
+            }
+          });
+        });
+      };
+
+      var updatePromiseFromPotentialThenable = function(x, capability) {
+        if (!ES.TypeIsObject(x)) {
+          return false;
+        }
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          var then = x.then; // only one invocation of accessor
+          if (!ES.IsCallable(then)) { return false; }
+          then.call(x, resolve, reject);
+        } catch(e) {
+          reject(e);
+        }
+        return true;
+      };
+
+      var promiseResolutionHandler = function(promise, onFulfilled, onRejected){
+        return function(x) {
+          if (x === promise) {
+            return onRejected(new TypeError('self resolution'));
+          }
+          var C = promise._promiseConstructor;
+          var capability = new PromiseCapability(C);
+          var updateResult = updatePromiseFromPotentialThenable(x, capability);
+          if (updateResult) {
+            return capability.promise.then(onFulfilled, onRejected);
+          } else {
+            return onFulfilled(x);
+          }
+        };
+      };
+
+      Promise = function(resolver) {
+        var promise = this;
+        promise = emulateES6construct(promise);
+        if (!promise._promiseConstructor) {
+          // we use _promiseConstructor as a stand-in for the internal
+          // [[PromiseStatus]] field; it's a little more unique.
+          throw new TypeError('bad promise');
+        }
+        if (promise._status !== undefined) {
+          throw new TypeError('promise already initialized');
+        }
+        // see https://bugs.ecmascript.org/show_bug.cgi?id=2482
+        if (!ES.IsCallable(resolver)) {
+          throw new TypeError('not a valid resolver');
+        }
+        promise._status = 'unresolved';
+        promise._resolveReactions = [];
+        promise._rejectReactions = [];
+
+        var resolve = function(resolution) {
+          if (promise._status !== 'unresolved') { return; }
+          var reactions = promise._resolveReactions;
+          promise._result = resolution;
+          promise._resolveReactions = undefined;
+          promise._rejectReactions = undefined;
+          promise._status = 'has-resolution';
+          triggerPromiseReactions(reactions, resolution);
+        };
+        var reject = function(reason) {
+          if (promise._status !== 'unresolved') { return; }
+          var reactions = promise._rejectReactions;
+          promise._result = reason;
+          promise._resolveReactions = undefined;
+          promise._rejectReactions = undefined;
+          promise._status = 'has-rejection';
+          triggerPromiseReactions(reactions, reason);
+        };
+        try {
+          resolver(resolve, reject);
+        } catch (e) {
+          reject(e);
+        }
+        return promise;
+      };
+      Promise$prototype = Promise.prototype;
+      defineProperties(Promise, {
+        '@@create': function(obj) {
+          var constructor = this;
+          // AllocatePromise
+          // The `obj` parameter is a hack we use for es5
+          // compatibility.
+          var prototype = constructor.prototype || Promise$prototype;
+          obj = obj || create(prototype);
+          defineProperties(obj, {
+            _status: undefined,
+            _result: undefined,
+            _resolveReactions: undefined,
+            _rejectReactions: undefined,
+            _promiseConstructor: undefined
+          });
+          obj._promiseConstructor = constructor;
+          return obj;
+        }
+      });
+
+      var _promiseAllResolver = function(index, values, capability, remaining) {
+        var done = false;
+        return function(x) {
+          if (done) { return; } // protect against being called multiple times
+          done = true;
+          values[index] = x;
+          if ((--remaining.count) === 0) {
+            var resolve = capability.resolve;
+            resolve(values); // call w/ this===undefined
+          }
+        };
+      };
+
+      Promise.all = function(iterable) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          if (!ES.IsIterable(iterable)) {
+            throw new TypeError('bad iterable');
+          }
+          var it = ES.GetIterator(iterable);
+          var values = [], remaining = { count: 1 };
+          for (var index = 0; ; index++) {
+            var next = ES.IteratorNext(it);
+            if (next.done) {
+              break;
+            }
+            var nextPromise = C.resolve(next.value);
+            var resolveElement = _promiseAllResolver(
+              index, values, capability, remaining
+            );
+            remaining.count++;
+            nextPromise.then(resolveElement, capability.reject);
+          }
+          if ((--remaining.count) === 0) {
+            resolve(values); // call w/ this===undefined
+          }
+        } catch (e) {
+          reject(e);
+        }
+        return capability.promise;
+      };
+
+      Promise.race = function(iterable) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          if (!ES.IsIterable(iterable)) {
+            throw new TypeError('bad iterable');
+          }
+          var it = ES.GetIterator(iterable);
+          while (true) {
+            var next = ES.IteratorNext(it);
+            if (next.done) {
+              // If iterable has no items, resulting promise will never
+              // resolve; see:
+              // https://github.com/domenic/promises-unwrapping/issues/75
+              // https://bugs.ecmascript.org/show_bug.cgi?id=2515
+              break;
+            }
+            var nextPromise = C.resolve(next.value);
+            nextPromise.then(resolve, reject);
+          }
+        } catch (e) {
+          reject(e);
+        }
+        return capability.promise;
+      };
+
+      Promise.reject = function(reason) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var reject = capability.reject;
+        reject(reason); // call with this===undefined
+        return capability.promise;
+      };
+
+      Promise.resolve = function(v) {
+        var C = this;
+        if (ES.IsPromise(v)) {
+          var constructor = v._promiseConstructor;
+          if (constructor === C) { return v; }
+        }
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        resolve(v); // call with this===undefined
+        return capability.promise;
+      };
+
+      Promise.prototype['catch'] = function( onRejected ) {
+        return this.then(undefined, onRejected);
+      };
+
+      Promise.prototype.then = function( onFulfilled, onRejected ) {
+        var promise = this;
+        if (!ES.IsPromise(promise)) { throw new TypeError('not a promise'); }
+        // this.constructor not this._promiseConstructor; see
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2513
+        var C = this.constructor;
+        var capability = new PromiseCapability(C);
+        if (!ES.IsCallable(onRejected)) {
+          onRejected = function(e) { throw e; };
+        }
+        if (!ES.IsCallable(onFulfilled)) {
+          onFulfilled = function(x) { return x; };
+        }
+        var resolutionHandler =
+          promiseResolutionHandler(promise, onFulfilled, onRejected);
+        var resolveReaction =
+          { capability: capability, handler: resolutionHandler };
+        var rejectReaction =
+          { capability: capability, handler: onRejected };
+        switch (promise._status) {
+        case 'unresolved':
+          promise._resolveReactions.push(resolveReaction);
+          promise._rejectReactions.push(rejectReaction);
+          break;
+        case 'has-resolution':
+          triggerPromiseReactions([resolveReaction], promise._result);
+          break;
+        case 'has-rejection':
+          triggerPromiseReactions([rejectReaction], promise._result);
+          break;
+        default:
+          throw new TypeError('unexpected');
+        }
+        return capability.promise;
+      };
+
+      return Promise;
+    })();
+    // export the Promise constructor.
+    defineProperties(globals, { Promise: PromiseShim });
+    // In Chrome 33 (and thereabouts) Promise is defined, but the
+    // implementation is buggy in a number of ways.  Let's check subclassing
+    // support to see if we have a buggy implementation.
+    var promiseSupportsSubclassing = supportsSubclassing(globals.Promise, function(S) {
+      return S.resolve(42) instanceof S;
+    });
+    var promiseIgnoresNonFunctionThenCallbacks = (function () {
+      try {
+        globals.Promise.reject(42).then(null, 5).then(null, function () {});
+        return true;
+      } catch (ex) {
+        return false;
+      }
+    }());
+    if (!promiseSupportsSubclassing || !promiseIgnoresNonFunctionThenCallbacks) {
+      globals.Promise = PromiseShim;
+    }
+
+    // Map and Set require a true ES5 environment
+    if (supportsDescriptors) {
+
+      var fastkey = function fastkey(key) {
+        var type = typeof key;
+        if (type === 'string') {
+          return '$' + key;
+        } else if (type === 'number') {
+          // note that -0 will get coerced to "0" when used as a property key
+          return key;
+        }
+        return null;
+      };
+
+      var emptyObject = function emptyObject() {
+        // accomodate some older not-quite-ES5 browsers
+        return Object.create ? Object.create(null) : {};
+      };
+
+      var collectionShims = {
+        Map: (function() {
+
+          var empty = {};
+
+          function MapEntry(key, value) {
+            this.key = key;
+            this.value = value;
+            this.next = null;
+            this.prev = null;
+          }
+
+          MapEntry.prototype.isRemoved = function() {
+            return this.key === empty;
+          };
+
+          function MapIterator(map, kind) {
+            this.head = map._head;
+            this.i = this.head;
+            this.kind = kind;
+          }
+
+          MapIterator.prototype = {
+            next: function() {
+              var i = this.i, kind = this.kind, head = this.head, result;
+              if (this.i === undefined) {
+                return { value: undefined, done: true };
+              }
+              while (i.isRemoved() && i !== head) {
+                // back up off of removed entries
+                i = i.prev;
+              }
+              // advance to next unreturned element.
+              while (i.next !== head) {
+                i = i.next;
+                if (!i.isRemoved()) {
+                  if (kind === "key") {
+                    result = i.key;
+                  } else if (kind === "value") {
+                    result = i.value;
+                  } else {
+                    result = [i.key, i.value];
+                  }
+                  this.i = i;
+                  return { value: result, done: false };
+                }
+              }
+              // once the iterator is done, it is done forever.
+              this.i = undefined;
+              return { value: undefined, done: true };
+            }
+          };
+          addIterator(MapIterator.prototype);
+
+          function Map(iterable) {
+            var map = this;
+            map = emulateES6construct(map);
+            if (!map._es6map) {
+              throw new TypeError('bad map');
+            }
+
+            var head = new MapEntry(null, null);
+            // circular doubly-linked list.
+            head.next = head.prev = head;
+
+            defineProperties(map, {
+              '_head': head,
+              '_storage': emptyObject(),
+              '_size': 0
+            });
+
+            // Optionally initialize map from iterable
+            if (iterable !== undefined && iterable !== null) {
+              var it = ES.GetIterator(iterable);
+              var adder = map.set;
+              if (!ES.IsCallable(adder)) { throw new TypeError('bad map'); }
+              while (true) {
+                var next = ES.IteratorNext(it);
+                if (next.done) { break; }
+                var nextItem = next.value;
+                if (!ES.TypeIsObject(nextItem)) {
+                  throw new TypeError('expected iterable of pairs');
+                }
+                adder.call(map, nextItem[0], nextItem[1]);
+              }
+            }
+            return map;
+          }
+          var Map$prototype = Map.prototype;
+          defineProperties(Map, {
+            '@@create': function(obj) {
+              var constructor = this;
+              var prototype = constructor.prototype || Map$prototype;
+              obj = obj || create(prototype);
+              defineProperties(obj, { _es6map: true });
+              return obj;
+            }
+          });
+
+          Object.defineProperty(Map.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._size === 'undefined') {
+                throw new TypeError('size method called on incompatible Map');
+              }
+              return this._size;
+            }
+          });
+
+          defineProperties(Map.prototype, {
+            get: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                var entry = this._storage[fkey];
+                return entry ? entry.value : undefined;
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return i.value;
+                }
+              }
+              return undefined;
+            },
+
+            has: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                return typeof this._storage[fkey] !== 'undefined';
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            set: function(key, value) {
+              var head = this._head, i = head, entry;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] !== 'undefined') {
+                  this._storage[fkey].value = value;
+                  return;
+                } else {
+                  entry = this._storage[fkey] = new MapEntry(key, value);
+                  i = head.prev;
+                  // fall through
+                }
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.value = value;
+                  return;
+                }
+              }
+              entry = entry || new MapEntry(key, value);
+              if (ES.SameValue(-0, key)) {
+                entry.key = +0; // coerce -0 to +0 in entry
+              }
+              entry.next = this._head;
+              entry.prev = this._head.prev;
+              entry.prev.next = entry;
+              entry.next.prev = entry;
+              this._size += 1;
+            },
+
+            'delete': function(key) {
+              var head = this._head, i = head;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] === 'undefined') {
+                  return false;
+                }
+                i = this._storage[fkey].prev;
+                delete this._storage[fkey];
+                // fall through
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.key = i.value = empty;
+                  i.prev.next = i.next;
+                  i.next.prev = i.prev;
+                  this._size -= 1;
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            clear: function() {
+              this._size = 0;
+              this._storage = emptyObject();
+              var head = this._head, i = head, p = i.next;
+              while ((i = p) !== head) {
+                i.key = i.value = empty;
+                p = i.next;
+                i.next = i.prev = head;
+              }
+              head.next = head.prev = head;
+            },
+
+            keys: function() {
+              return new MapIterator(this, "key");
+            },
+
+            values: function() {
+              return new MapIterator(this, "value");
+            },
+
+            entries: function() {
+              return new MapIterator(this, "key+value");
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var it = this.entries();
+              for (var entry = it.next(); !entry.done; entry = it.next()) {
+                callback.call(context, entry.value[1], entry.value[0], this);
+              }
+            }
+          });
+          addIterator(Map.prototype, function() { return this.entries(); });
+
+          return Map;
+        })(),
+
+        Set: (function() {
+          // Creating a Map is expensive.  To speed up the common case of
+          // Sets containing only string or numeric keys, we use an object
+          // as backing storage and lazily create a full Map only when
+          // required.
+          var SetShim = function Set(iterable) {
+            var set = this;
+            set = emulateES6construct(set);
+            if (!set._es6set) {
+              throw new TypeError('bad set');
+            }
+
+            defineProperties(set, {
+              '[[SetData]]': null,
+              '_storage': emptyObject()
+            });
+
+            // Optionally initialize map from iterable
+            if (iterable !== undefined && iterable !== null) {
+              var it = ES.GetIterator(iterable);
+              var adder = set.add;
+              if (!ES.IsCallable(adder)) { throw new TypeError('bad set'); }
+              while (true) {
+                var next = ES.IteratorNext(it);
+                if (next.done) { break; }
+                var nextItem = next.value;
+                adder.call(set, nextItem);
+              }
+            }
+            return set;
+          };
+          var Set$prototype = SetShim.prototype;
+          defineProperties(SetShim, {
+            '@@create': function(obj) {
+              var constructor = this;
+              var prototype = constructor.prototype || Set$prototype;
+              obj = obj || create(prototype);
+              defineProperties(obj, { _es6set: true });
+              return obj;
+            }
+          });
+
+          // Switch from the object backing storage to a full Map.
+          var ensureMap = function ensureMap(set) {
+            if (!set['[[SetData]]']) {
+              var m = set['[[SetData]]'] = new collectionShims.Map();
+              Object.keys(set._storage).forEach(function(k) {
+                // fast check for leading '$'
+                if (k.charCodeAt(0) === 36) {
+                  k = k.slice(1);
+                } else {
+                  k = +k;
+                }
+                m.set(k, k);
+              });
+              set._storage = null; // free old backing storage
+            }
+          };
+
+          Object.defineProperty(SetShim.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._storage === 'undefined') {
+                // https://github.com/paulmillr/es6-shim/issues/176
+                throw new TypeError('size method called on incompatible Set');
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].size;
+            }
+          });
+
+          defineProperties(SetShim.prototype, {
+            has: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                return !!this._storage[fkey];
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].has(key);
+            },
+
+            add: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                this._storage[fkey]=true;
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].set(key, key);
+            },
+
+            'delete': function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                delete this._storage[fkey];
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]']['delete'](key);
+            },
+
+            clear: function() {
+              if (this._storage) {
+                this._storage = emptyObject();
+                return;
+              }
+              return this['[[SetData]]'].clear();
+            },
+
+            keys: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].keys();
+            },
+
+            values: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].values();
+            },
+
+            entries: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].entries();
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var entireSet = this;
+              ensureMap(this);
+              this['[[SetData]]'].forEach(function(value, key) {
+                callback.call(context, key, key, entireSet);
+              });
+            }
+          });
+          addIterator(SetShim.prototype, function() { return this.values(); });
+
+          return SetShim;
+        })()
+      };
+      defineProperties(globals, collectionShims);
+
+      if (globals.Map || globals.Set) {
+        /*
+          - In Firefox < 23, Map#size is a function.
+          - In all current Firefox, Set#entries/keys/values & Map#clear do not exist
+          - https://bugzilla.mozilla.org/show_bug.cgi?id=869996
+          - In Firefox 24, Map and Set do not implement forEach
+          - In Firefox 25 at least, Map and Set are callable without "new"
+        */
+        if (
+          typeof globals.Map.prototype.clear !== 'function' ||
+          new globals.Set().size !== 0 ||
+          new globals.Map().size !== 0 ||
+          typeof globals.Map.prototype.keys !== 'function' ||
+          typeof globals.Set.prototype.keys !== 'function' ||
+          typeof globals.Map.prototype.forEach !== 'function' ||
+          typeof globals.Set.prototype.forEach !== 'function' ||
+          isCallableWithoutNew(globals.Map) ||
+          isCallableWithoutNew(globals.Set) ||
+          !supportsSubclassing(globals.Map, function(M) {
+            return (new M([])) instanceof M;
+          })
+        ) {
+          globals.Map = collectionShims.Map;
+          globals.Set = collectionShims.Set;
+        }
+      }
+      // Shim incomplete iterator implementations.
+      addIterator(Object.getPrototypeOf((new globals.Map()).keys()));
+      addIterator(Object.getPrototypeOf((new globals.Set()).keys()));
+    }
+  };
+
+  if (typeof define === 'function' && define.amd) {
+    define(main); // RequireJS
+  } else {
+    main(); // CommonJS and <script>
+  }
+})();
+
diff --git a/ajax/libs/es6-shim/0.14.0/es6-shim.map b/ajax/libs/es6-shim/0.14.0/es6-shim.map
new file mode 100644
index 000000000..ef652b2a7
--- /dev/null
+++ b/ajax/libs/es6-shim/0.14.0/es6-shim.map
@@ -0,0 +1 @@
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diff --git a/ajax/libs/es6-shim/0.14.0/es6-shim.min.js b/ajax/libs/es6-shim/0.14.0/es6-shim.min.js
new file mode 100644
index 000000000..cf175a5b7
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t=arguments.length>1?arguments[1]:null;var r=this.entries();for(var n=r.next();!n.done;n=r.next()){e.call(t,n.value[1],n.value[0],this)}}});m(a.prototype,function(){return this.entries()});return a}(),Set:function(){var t=function a(t){var r=this;r=d(r);if(!r._es6set){throw new TypeError("bad set")}y(r,{"[[SetData]]":null,_storage:D()});if(t!==e&&t!==null){var n=j.GetIterator(t);var a=r.add;if(!j.IsCallable(a)){throw new TypeError("bad set")}while(true){var i=j.IteratorNext(n);if(i.done){break}var o=i.value;a.call(r,o)}}return r};var r=t.prototype;y(t,{"@@create":function(e){var t=this;var n=t.prototype||r;e=e||b(n);y(e,{_es6set:true});return e}});var n=function i(e){if(!e["[[SetData]]"]){var t=e["[[SetData]]"]=new G.Map;Object.keys(e._storage).forEach(function(e){if(e.charCodeAt(0)===36){e=e.slice(1)}else{e=+e}t.set(e,e)});e._storage=null}};Object.defineProperty(t.prototype,"size",{configurable:true,enumerable:false,get:function(){if(typeof this._storage==="undefined"){throw new TypeError("size method called on incompatible Set")}n(this);return this["[[SetData]]"].size}});y(t.prototype,{has:function(e){var t;if(this._storage&&(t=z(e))!==null){return!!this._storage[t]}n(this);return this["[[SetData]]"].has(e)},add:function(e){var t;if(this._storage&&(t=z(e))!==null){this._storage[t]=true;return}n(this);return this["[[SetData]]"].set(e,e)},"delete":function(e){var t;if(this._storage&&(t=z(e))!==null){delete this._storage[t];return}n(this);return this["[[SetData]]"]["delete"](e)},clear:function(){if(this._storage){this._storage=D();return}return this["[[SetData]]"].clear()},keys:function(){n(this);return this["[[SetData]]"].keys()},values:function(){n(this);return this["[[SetData]]"].values()},entries:function(){n(this);return this["[[SetData]]"].entries()},forEach:function(e){var t=arguments.length>1?arguments[1]:null;var r=this;n(this);this["[[SetData]]"].forEach(function(n,a){e.call(t,a,a,r)})}});m(t.prototype,function(){return this.values()});return t}()};y(o,G);if(o.Map||o.Set){if(typeof o.Map.prototype.clear!=="function"||(new o.Set).size!==0||(new o.Map).size!==0||typeof o.Map.prototype.keys!=="function"||typeof o.Set.prototype.keys!=="function"||typeof o.Map.prototype.forEach!=="function"||typeof o.Set.prototype.forEach!=="function"||t(o.Map)||t(o.Set)||!r(o.Map,function(e){return new e([])instanceof e})){o.Map=G.Map;o.Set=G.Set}}m(Object.getPrototypeOf((new o.Map).keys()));m(Object.getPrototypeOf((new o.Set).keys()))}};if(typeof define==="function"&&define.amd){define(o)}else{o()}})();
+//# sourceMappingURL=es6-shim.map
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.15.0/es6-shim.js b/ajax/libs/es6-shim/0.15.0/es6-shim.js
new file mode 100644
index 000000000..418f92643
--- /dev/null
+++ b/ajax/libs/es6-shim/0.15.0/es6-shim.js
@@ -0,0 +1,1879 @@
+// ES6-shim 0.15.0 (c) 2013-2014 Paul Miller (http://paulmillr.com)
+// ES6-shim may be freely distributed under the MIT license.
+// For more details and documentation:
+// https://github.com/paulmillr/es6-shim/
+
+(function(undefined) {
+  'use strict';
+
+  var isCallableWithoutNew = function(func) {
+    try { func(); }
+    catch (e) { return false; }
+    return true;
+  };
+
+  var supportsSubclassing = function(C, f) {
+    /* jshint proto:true */
+    try {
+      var Sub = function() { C.apply(this, arguments); };
+      if (!Sub.__proto__) { return false; /* skip test on IE < 11 */ }
+      Object.setPrototypeOf(Sub, C);
+      Sub.prototype = Object.create(C.prototype, {
+        constructor: { value: C }
+      });
+      return f(Sub);
+    } catch (e) {
+      return false;
+    }
+  };
+
+  var arePropertyDescriptorsSupported = function() {
+    try {
+      Object.defineProperty({}, 'x', {});
+      return true;
+    } catch (e) { /* this is IE 8. */
+      return false;
+    }
+  };
+
+  var startsWithRejectsRegex = function() {
+    var rejectsRegex = false;
+    if (String.prototype.startsWith) {
+      try {
+        '/a/'.startsWith(/a/);
+      } catch (e) { /* this is spec compliant */
+        rejectsRegex = true;
+      }
+    }
+    return rejectsRegex;
+  };
+
+  /*jshint evil: true */
+  var getGlobal = new Function('return this;');
+  /*jshint evil: false */
+
+  var main = function() {
+    var globals = getGlobal();
+    var global_isFinite = globals.isFinite;
+    var supportsDescriptors = !!Object.defineProperty && arePropertyDescriptorsSupported();
+    var startsWithIsCompliant = startsWithRejectsRegex();
+    var _slice = Array.prototype.slice;
+    var _indexOf = String.prototype.indexOf;
+    var _toString = Object.prototype.toString;
+    var _hasOwnProperty = Object.prototype.hasOwnProperty;
+    var ArrayIterator; // make our implementation private
+
+    // Define configurable, writable and non-enumerable props
+    // if they don’t exist.
+    var defineProperties = function(object, map) {
+      Object.keys(map).forEach(function(name) {
+        var method = map[name];
+        if (name in object) return;
+        if (supportsDescriptors) {
+          Object.defineProperty(object, name, {
+            configurable: true,
+            enumerable: false,
+            writable: true,
+            value: method
+          });
+        } else {
+          object[name] = method;
+        }
+      });
+    };
+
+    // Simple shim for Object.create on ES3 browsers
+    // (unlike real shim, no attempt to support `prototype === null`)
+    var create = Object.create || function(prototype, properties) {
+      function Type() {}
+      Type.prototype = prototype;
+      var object = new Type();
+      if (typeof properties !== "undefined") {
+        defineProperties(object, properties);
+      }
+      return object;
+    };
+
+    // This is a private name in the es6 spec, equal to '[Symbol.iterator]'
+    // we're going to use an arbitrary _-prefixed name to make our shims
+    // work properly with each other, even though we don't have full Iterator
+    // support.  That is, `Array.from(map.keys())` will work, but we don't
+    // pretend to export a "real" Iterator interface.
+    var $iterator$ = (typeof Symbol === 'function' && Symbol.iterator) ||
+      '_es6shim_iterator_';
+    // Firefox ships a partial implementation using the name @@iterator.
+    // https://bugzilla.mozilla.org/show_bug.cgi?id=907077#c14
+    // So use that name if we detect it.
+    if (globals.Set && typeof new globals.Set()['@@iterator'] === 'function') {
+      $iterator$ = '@@iterator';
+    }
+    var addIterator = function(prototype, impl) {
+      if (!impl) { impl = function iterator() { return this; }; }
+      var o = {};
+      o[$iterator$] = impl;
+      defineProperties(prototype, o);
+    };
+
+    // taken directly from https://github.com/ljharb/is-arguments/blob/master/index.js
+    // can be replaced with require('is-arguments') if we ever use a build process instead
+    var isArguments = function isArguments(value) {
+      var str = _toString.call(value);
+      var result = str === '[object Arguments]';
+      if (!result) {
+        result = str !== '[object Array]' &&
+          value !== null &&
+          typeof value === 'object' &&
+          typeof value.length === 'number' &&
+          value.length >= 0 &&
+          _toString.call(value.callee) === '[object Function]';
+      }
+      return result;
+    };
+
+    var emulateES6construct = function(o) {
+      if (!ES.TypeIsObject(o)) throw new TypeError('bad object');
+      // es5 approximation to es6 subclass semantics: in es6, 'new Foo'
+      // would invoke Foo.@@create to allocation/initialize the new object.
+      // In es5 we just get the plain object.  So if we detect an
+      // uninitialized object, invoke o.constructor.@@create
+      if (!o._es6construct) {
+        if (o.constructor && ES.IsCallable(o.constructor['@@create'])) {
+          o = o.constructor['@@create'](o);
+        }
+        defineProperties(o, { _es6construct: true });
+      }
+      return o;
+    };
+
+    var ES = {
+      CheckObjectCoercible: function(x, optMessage) {
+        /* jshint eqnull:true */
+        if (x == null)
+          throw new TypeError(optMessage || ('Cannot call method on ' + x));
+        return x;
+      },
+
+      TypeIsObject: function(x) {
+        /* jshint eqnull:true */
+        // this is expensive when it returns false; use this function
+        // when you expect it to return true in the common case.
+        return x != null && Object(x) === x;
+      },
+
+      ToObject: function(o, optMessage) {
+        return Object(ES.CheckObjectCoercible(o, optMessage));
+      },
+
+      IsCallable: function(x) {
+        return typeof x === 'function' &&
+          // some versions of IE say that typeof /abc/ === 'function'
+          _toString.call(x) === '[object Function]';
+      },
+
+      ToInt32: function(x) {
+        return x >> 0;
+      },
+
+      ToUint32: function(x) {
+        return x >>> 0;
+      },
+
+      ToInteger: function(value) {
+        var number = +value;
+        if (Number.isNaN(number)) return 0;
+        if (number === 0 || !Number.isFinite(number)) return number;
+        return Math.sign(number) * Math.floor(Math.abs(number));
+      },
+
+      ToLength: function(value) {
+        var len = ES.ToInteger(value);
+        if (len <= 0) return 0; // includes converting -0 to +0
+        if (len > Number.MAX_SAFE_INTEGER) return Number.MAX_SAFE_INTEGER;
+        return len;
+      },
+
+      SameValue: function(a, b) {
+        if (a === b) {
+          // 0 === -0, but they are not identical.
+          if (a === 0) return 1 / a === 1 / b;
+          return true;
+        }
+        return Number.isNaN(a) && Number.isNaN(b);
+      },
+
+      SameValueZero: function(a, b) {
+        // same as SameValue except for SameValueZero(+0, -0) == true
+        return (a === b) || (Number.isNaN(a) && Number.isNaN(b));
+      },
+
+      IsIterable: function(o) {
+        return ES.TypeIsObject(o) &&
+          (o[$iterator$] !== undefined || isArguments(o));
+      },
+
+      GetIterator: function(o) {
+        if (isArguments(o)) {
+          // special case support for `arguments`
+          return new ArrayIterator(o, "value");
+        }
+        var it = o[$iterator$]();
+        if (!ES.TypeIsObject(it)) {
+          throw new TypeError('bad iterator');
+        }
+        return it;
+      },
+
+      IteratorNext: function(it) {
+        var result = (arguments.length > 1) ? it.next(arguments[1]) : it.next();
+        if (!ES.TypeIsObject(result)) {
+          throw new TypeError('bad iterator');
+        }
+        return result;
+      },
+
+      Construct: function(C, args) {
+        // CreateFromConstructor
+        var obj;
+        if (ES.IsCallable(C['@@create'])) {
+          obj = C['@@create']();
+        } else {
+          // OrdinaryCreateFromConstructor
+          obj = create(C.prototype || null);
+        }
+        // Mark that we've used the es6 construct path
+        // (see emulateES6construct)
+        defineProperties(obj, { _es6construct: true });
+        // Call the constructor.
+        var result = C.apply(obj, args);
+        return ES.TypeIsObject(result) ? result : obj;
+      }
+    };
+
+    var numberConversion = (function () {
+      // from https://github.com/inexorabletash/polyfill/blob/master/typedarray.js#L176-L266
+      // with permission and license, per https://twitter.com/inexorabletash/status/372206509540659200
+
+      function roundToEven(n) {
+        var w = Math.floor(n), f = n - w;
+        if (f < 0.5) {
+          return w;
+        }
+        if (f > 0.5) {
+          return w + 1;
+        }
+        return w % 2 ? w + 1 : w;
+      }
+
+      function packIEEE754(v, ebits, fbits) {
+        var bias = (1 << (ebits - 1)) - 1,
+          s, e, f, ln,
+          i, bits, str, bytes;
+
+        // Compute sign, exponent, fraction
+        if (v !== v) {
+          // NaN
+          // http://dev.w3.org/2006/webapi/WebIDL/#es-type-mapping
+          e = (1 << ebits) - 1;
+          f = Math.pow(2, fbits - 1);
+          s = 0;
+        } else if (v === Infinity || v === -Infinity) {
+          e = (1 << ebits) - 1;
+          f = 0;
+          s = (v < 0) ? 1 : 0;
+        } else if (v === 0) {
+          e = 0;
+          f = 0;
+          s = (1 / v === -Infinity) ? 1 : 0;
+        } else {
+          s = v < 0;
+          v = Math.abs(v);
+
+          if (v >= Math.pow(2, 1 - bias)) {
+            e = Math.min(Math.floor(Math.log(v) / Math.LN2), 1023);
+            f = roundToEven(v / Math.pow(2, e) * Math.pow(2, fbits));
+            if (f / Math.pow(2, fbits) >= 2) {
+              e = e + 1;
+              f = 1;
+            }
+            if (e > bias) {
+              // Overflow
+              e = (1 << ebits) - 1;
+              f = 0;
+            } else {
+              // Normal
+              e = e + bias;
+              f = f - Math.pow(2, fbits);
+            }
+          } else {
+            // Subnormal
+            e = 0;
+            f = roundToEven(v / Math.pow(2, 1 - bias - fbits));
+          }
+        }
+
+        // Pack sign, exponent, fraction
+        bits = [];
+        for (i = fbits; i; i -= 1) {
+          bits.push(f % 2 ? 1 : 0);
+          f = Math.floor(f / 2);
+        }
+        for (i = ebits; i; i -= 1) {
+          bits.push(e % 2 ? 1 : 0);
+          e = Math.floor(e / 2);
+        }
+        bits.push(s ? 1 : 0);
+        bits.reverse();
+        str = bits.join('');
+
+        // Bits to bytes
+        bytes = [];
+        while (str.length) {
+          bytes.push(parseInt(str.slice(0, 8), 2));
+          str = str.slice(8);
+        }
+        return bytes;
+      }
+
+      function unpackIEEE754(bytes, ebits, fbits) {
+        // Bytes to bits
+        var bits = [], i, j, b, str,
+            bias, s, e, f;
+
+        for (i = bytes.length; i; i -= 1) {
+          b = bytes[i - 1];
+          for (j = 8; j; j -= 1) {
+            bits.push(b % 2 ? 1 : 0);
+            b = b >> 1;
+          }
+        }
+        bits.reverse();
+        str = bits.join('');
+
+        // Unpack sign, exponent, fraction
+        bias = (1 << (ebits - 1)) - 1;
+        s = parseInt(str.slice(0, 1), 2) ? -1 : 1;
+        e = parseInt(str.slice(1, 1 + ebits), 2);
+        f = parseInt(str.slice(1 + ebits), 2);
+
+        // Produce number
+        if (e === (1 << ebits) - 1) {
+          return f !== 0 ? NaN : s * Infinity;
+        } else if (e > 0) {
+          // Normalized
+          return s * Math.pow(2, e - bias) * (1 + f / Math.pow(2, fbits));
+        } else if (f !== 0) {
+          // Denormalized
+          return s * Math.pow(2, -(bias - 1)) * (f / Math.pow(2, fbits));
+        } else {
+          return s < 0 ? -0 : 0;
+        }
+      }
+
+      function unpackFloat64(b) { return unpackIEEE754(b, 11, 52); }
+      function packFloat64(v) { return packIEEE754(v, 11, 52); }
+      function unpackFloat32(b) { return unpackIEEE754(b, 8, 23); }
+      function packFloat32(v) { return packIEEE754(v, 8, 23); }
+
+      var conversions = {
+        toFloat32: function (num) { return unpackFloat32(packFloat32(num)); }
+      };
+      if (typeof Float32Array !== 'undefined') {
+        var float32array = new Float32Array(1);
+        conversions.toFloat32 = function (num) {
+          float32array[0] = num;
+          return float32array[0];
+        };
+      }
+      return conversions;
+    }());
+
+    defineProperties(String, {
+      fromCodePoint: function(_) { // length = 1
+        var points = _slice.call(arguments, 0, arguments.length);
+        var result = [];
+        var next;
+        for (var i = 0, length = points.length; i < length; i++) {
+          next = Number(points[i]);
+          if (!ES.SameValue(next, ES.ToInteger(next)) ||
+              next < 0 || next > 0x10FFFF) {
+            throw new RangeError('Invalid code point ' + next);
+          }
+
+          if (next < 0x10000) {
+            result.push(String.fromCharCode(next));
+          } else {
+            next -= 0x10000;
+            result.push(String.fromCharCode((next >> 10) + 0xD800));
+            result.push(String.fromCharCode((next % 0x400) + 0xDC00));
+          }
+        }
+        return result.join('');
+      },
+
+      raw: function(callSite) { // raw.length===1
+        var substitutions = _slice.call(arguments, 1, arguments.length);
+        var cooked = ES.ToObject(callSite, 'bad callSite');
+        var rawValue = cooked.raw;
+        var raw = ES.ToObject(rawValue, 'bad raw value');
+        var len = Object.keys(raw).length;
+        var literalsegments = ES.ToLength(len);
+        if (literalsegments === 0) {
+          return '';
+        }
+
+        var stringElements = [];
+        var nextIndex = 0;
+        var nextKey, next, nextSeg, nextSub;
+        while (nextIndex < literalsegments) {
+          nextKey = String(nextIndex);
+          next = raw[nextKey];
+          nextSeg = String(next);
+          stringElements.push(nextSeg);
+          if (nextIndex + 1 >= literalsegments) {
+            break;
+          }
+          next = substitutions[nextKey];
+          if (next === undefined) {
+            break;
+          }
+          nextSub = String(next);
+          stringElements.push(nextSub);
+          nextIndex++;
+        }
+        return stringElements.join('');
+      }
+    });
+
+    var StringShims = {
+      // Fast repeat, uses the `Exponentiation by squaring` algorithm.
+      // Perf: http://jsperf.com/string-repeat2/2
+      repeat: (function() {
+        var repeat = function(s, times) {
+          if (times < 1) return '';
+          if (times % 2) return repeat(s, times - 1) + s;
+          var half = repeat(s, times / 2);
+          return half + half;
+        };
+
+        return function(times) {
+          var thisStr = String(ES.CheckObjectCoercible(this));
+          times = ES.ToInteger(times);
+          if (times < 0 || times === Infinity) {
+            throw new RangeError('Invalid String#repeat value');
+          }
+          return repeat(thisStr, times);
+        };
+      })(),
+
+      startsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "startsWith" with a regex');
+        searchStr = String(searchStr);
+        var startArg = arguments.length > 1 ? arguments[1] : undefined;
+        var start = Math.max(ES.ToInteger(startArg), 0);
+        return thisStr.slice(start, start + searchStr.length) === searchStr;
+      },
+
+      endsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "endsWith" with a regex');
+        searchStr = String(searchStr);
+        var thisLen = thisStr.length;
+        var posArg = arguments.length > 1 ? arguments[1] : undefined;
+        var pos = posArg === undefined ? thisLen : ES.ToInteger(posArg);
+        var end = Math.min(Math.max(pos, 0), thisLen);
+        return thisStr.slice(end - searchStr.length, end) === searchStr;
+      },
+
+      contains: function(searchString) {
+        var position = arguments.length > 1 ? arguments[1] : undefined;
+        // Somehow this trick makes method 100% compat with the spec.
+        return _indexOf.call(this, searchString, position) !== -1;
+      },
+
+      codePointAt: function(pos) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        var position = ES.ToInteger(pos);
+        var length = thisStr.length;
+        if (position < 0 || position >= length) return undefined;
+        var first = thisStr.charCodeAt(position);
+        var isEnd = (position + 1 === length);
+        if (first < 0xD800 || first > 0xDBFF || isEnd) return first;
+        var second = thisStr.charCodeAt(position + 1);
+        if (second < 0xDC00 || second > 0xDFFF) return first;
+        return ((first - 0xD800) * 1024) + (second - 0xDC00) + 0x10000;
+      }
+    };
+    defineProperties(String.prototype, StringShims);
+
+    var hasStringTrimBug = '\u0085'.trim().length !== 1;
+    if (hasStringTrimBug) {
+      var originalStringTrim = String.prototype.trim;
+      delete String.prototype.trim;
+      // whitespace from: http://es5.github.io/#x15.5.4.20
+      // implementation from https://github.com/es-shims/es5-shim/blob/v3.4.0/es5-shim.js#L1304-L1324
+      var ws = [
+        '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003',
+        '\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028',
+        '\u2029\uFEFF'
+      ].join('');
+      var trimBeginRegexp = new RegExp('^[' + ws + '][' + ws + ']*');
+      var trimEndRegexp = new RegExp('[' + ws + '][' + ws + ']*$');
+      defineProperties(String.prototype, {
+        trim: function() {
+          if (this === undefined || this === null) {
+            throw new TypeError("can't convert " + this + " to object");
+          }
+          return String(this)
+            .replace(trimBeginRegexp, "")
+            .replace(trimEndRegexp, "");
+          }
+      });
+    }
+
+    // see https://people.mozilla.org/~jorendorff/es6-draft.html#sec-string.prototype-@@iterator
+    var StringIterator = function(s) {
+      this._s = String(ES.CheckObjectCoercible(s));
+      this._i = 0;
+    };
+    StringIterator.prototype.next = function() {
+      var s = this._s, i = this._i;
+      if (s === undefined || i >= s.length) {
+        this._s = undefined;
+        return { value: undefined, done: true };
+      }
+      var first = s.charCodeAt(i), second, len;
+      if (first < 0xD800 || first > 0xDBFF || (i+1) == s.length) {
+        len = 1;
+      } else {
+        second = s.charCodeAt(i+1);
+        len = (second < 0xDC00 || second > 0xDFFF) ? 1 : 2;
+      }
+      this._i = i + len;
+      return { value: s.substr(i, len), done: false };
+    };
+    addIterator(StringIterator.prototype);
+    addIterator(String.prototype, function() {
+      return new StringIterator(this);
+    });
+
+    if (!startsWithIsCompliant) {
+      // Firefox has a noncompliant startsWith implementation
+      String.prototype.startsWith = StringShims.startsWith;
+      String.prototype.endsWith = StringShims.endsWith;
+    }
+
+    defineProperties(Array, {
+      from: function(iterable) {
+        var mapFn = arguments.length > 1 ? arguments[1] : undefined;
+        var thisArg = arguments.length > 2 ? arguments[2] : undefined;
+
+        var list = ES.ToObject(iterable, 'bad iterable');
+        if (mapFn !== undefined && !ES.IsCallable(mapFn)) {
+          throw new TypeError('Array.from: when provided, the second argument must be a function');
+        }
+
+        var usingIterator = ES.IsIterable(list);
+        // does the spec really mean that Arrays should use ArrayIterator?
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2416
+        //if (Array.isArray(list)) { usingIterator=false; }
+        var length = usingIterator ? 0 : ES.ToLength(list.length);
+        var result = ES.IsCallable(this) ? Object(usingIterator ? new this() : new this(length)) : new Array(length);
+        var it = usingIterator ? ES.GetIterator(list) : null;
+        var value;
+
+        for (var i = 0; usingIterator || (i < length); i++) {
+          if (usingIterator) {
+            value = ES.IteratorNext(it);
+            if (value.done) {
+              length = i;
+              break;
+            }
+            value = value.value;
+          } else {
+            value = list[i];
+          }
+          if (mapFn) {
+            result[i] = thisArg ? mapFn.call(thisArg, value, i) : mapFn(value, i);
+          } else {
+            result[i] = value;
+          }
+        }
+
+        result.length = length;
+        return result;
+      },
+
+      of: function() {
+        return Array.from(arguments);
+      }
+    });
+
+    // Our ArrayIterator is private; see
+    // https://github.com/paulmillr/es6-shim/issues/252
+    ArrayIterator = function(array, kind) {
+        this.i = 0;
+        this.array = array;
+        this.kind = kind;
+    };
+
+    defineProperties(ArrayIterator.prototype, {
+      next: function() {
+        var i = this.i, array = this.array;
+        if (i === undefined || this.kind === undefined) {
+          throw new TypeError('Not an ArrayIterator');
+        }
+        if (array!==undefined) {
+          var len = ES.ToLength(array.length);
+          for (; i < len; i++) {
+            var kind = this.kind;
+            var retval;
+            if (kind === "key") {
+              retval = i;
+            } else if (kind === "value") {
+              retval = array[i];
+            } else if (kind === "entry") {
+              retval = [i, array[i]];
+            }
+            this.i = i + 1;
+            return { value: retval, done: false };
+          }
+        }
+        this.array = undefined;
+        return { value: undefined, done: true };
+      }
+    });
+    addIterator(ArrayIterator.prototype);
+
+    defineProperties(Array.prototype, {
+      copyWithin: function(target, start) {
+        var end = arguments[2]; // copyWithin.length must be 2
+        var o = ES.ToObject(this);
+        var len = ES.ToLength(o.length);
+        target = ES.ToInteger(target);
+        start = ES.ToInteger(start);
+        var to = target < 0 ? Math.max(len + target, 0) : Math.min(target, len);
+        var from = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+        end = (end===undefined) ? len : ES.ToInteger(end);
+        var fin = end < 0 ? Math.max(len + end, 0) : Math.min(end, len);
+        var count = Math.min(fin - from, len - to);
+        var direction = 1;
+        if (from < to && to < (from + count)) {
+          direction = -1;
+          from += count - 1;
+          to += count - 1;
+        }
+        while (count > 0) {
+          if (_hasOwnProperty.call(o, from)) {
+            o[to] = o[from];
+          } else {
+            delete o[from];
+          }
+          from += direction;
+          to += direction;
+          count -= 1;
+        }
+        return o;
+      },
+
+      fill: function(value) {
+        var start = arguments.length > 1 ? arguments[1] : undefined;
+        var end = arguments.length > 2 ? arguments[2] : undefined;
+        var O = ES.ToObject(this);
+        var len = ES.ToLength(O.length);
+        start = ES.ToInteger(start === undefined ? 0 : start);
+        end = ES.ToInteger(end === undefined ? len : end);
+
+        var relativeStart = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+        var relativeEnd = end < 0 ? len + end : end;
+
+        for (var i = relativeStart; i < len && i < relativeEnd; ++i) {
+          O[i] = value;
+        }
+        return O;
+      },
+
+      find: function(predicate) {
+        var list = ES.ToObject(this);
+        var length = ES.ToLength(list.length);
+        if (!ES.IsCallable(predicate)) {
+          throw new TypeError('Array#find: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0, value; i < length; i++) {
+          if (i in list) {
+            value = list[i];
+            if (predicate.call(thisArg, value, i, list)) return value;
+          }
+        }
+        return undefined;
+      },
+
+      findIndex: function(predicate) {
+        var list = ES.ToObject(this);
+        var length = ES.ToLength(list.length);
+        if (!ES.IsCallable(predicate)) {
+          throw new TypeError('Array#findIndex: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0; i < length; i++) {
+          if (i in list) {
+            if (predicate.call(thisArg, list[i], i, list)) return i;
+          }
+        }
+        return -1;
+      },
+
+      keys: function() {
+        return new ArrayIterator(this, "key");
+      },
+
+      values: function() {
+        return new ArrayIterator(this, "value");
+      },
+
+      entries: function() {
+        return new ArrayIterator(this, "entry");
+      }
+    });
+    addIterator(Array.prototype, function() { return this.values(); });
+    // Chrome defines keys/values/entries on Array, but doesn't give us
+    // any way to identify its iterator.  So add our own shimmed field.
+    if (Object.getPrototypeOf) {
+      addIterator(Object.getPrototypeOf([].values()));
+    }
+
+    var maxSafeInteger = Math.pow(2, 53) - 1;
+    defineProperties(Number, {
+      MAX_SAFE_INTEGER: maxSafeInteger,
+      MIN_SAFE_INTEGER: -maxSafeInteger,
+      EPSILON: 2.220446049250313e-16,
+
+      parseInt: globals.parseInt,
+      parseFloat: globals.parseFloat,
+
+      isFinite: function(value) {
+        return typeof value === 'number' && global_isFinite(value);
+      },
+
+      isInteger: function(value) {
+        return Number.isFinite(value) &&
+          ES.ToInteger(value) === value;
+      },
+
+      isSafeInteger: function(value) {
+        return Number.isInteger(value) && Math.abs(value) <= Number.MAX_SAFE_INTEGER;
+      },
+
+      isNaN: function(value) {
+        // NaN !== NaN, but they are identical.
+        // NaNs are the only non-reflexive value, i.e., if x !== x,
+        // then x is NaN.
+        // isNaN is broken: it converts its argument to number, so
+        // isNaN('foo') => true
+        return value !== value;
+      }
+
+    });
+
+    if (supportsDescriptors) {
+      defineProperties(Object, {
+        getPropertyDescriptor: function(subject, name) {
+          var pd = Object.getOwnPropertyDescriptor(subject, name);
+          var proto = Object.getPrototypeOf(subject);
+          while (pd === undefined && proto !== null) {
+            pd = Object.getOwnPropertyDescriptor(proto, name);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return pd;
+        },
+
+        getPropertyNames: function(subject) {
+          var result = Object.getOwnPropertyNames(subject);
+          var proto = Object.getPrototypeOf(subject);
+
+          var addProperty = function(property) {
+            if (result.indexOf(property) === -1) {
+              result.push(property);
+            }
+          };
+
+          while (proto !== null) {
+            Object.getOwnPropertyNames(proto).forEach(addProperty);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return result;
+        }
+      });
+
+      defineProperties(Object, {
+        // 19.1.3.1
+        assign: function(target, source) {
+          if (!ES.TypeIsObject(target)) {
+            throw new TypeError('target must be an object');
+          }
+          return Array.prototype.reduce.call(arguments, function(target, source) {
+            return Object.keys(Object(source)).reduce(function(target, key) {
+              target[key] = source[key];
+              return target;
+            }, target);
+          });
+        },
+
+        is: function(a, b) {
+          return ES.SameValue(a, b);
+        },
+
+        // 19.1.3.9
+        // shim from https://gist.github.com/WebReflection/5593554
+        setPrototypeOf: (function(Object, magic) {
+          var set;
+
+          var checkArgs = function(O, proto) {
+            if (!ES.TypeIsObject(O)) {
+              throw new TypeError('cannot set prototype on a non-object');
+            }
+            if (!(proto===null || ES.TypeIsObject(proto))) {
+              throw new TypeError('can only set prototype to an object or null'+proto);
+            }
+          };
+
+          var setPrototypeOf = function(O, proto) {
+            checkArgs(O, proto);
+            set.call(O, proto);
+            return O;
+          };
+
+          try {
+            // this works already in Firefox and Safari
+            set = Object.getOwnPropertyDescriptor(Object.prototype, magic).set;
+            set.call({}, null);
+          } catch (e) {
+            if (Object.prototype !== {}[magic]) {
+              // IE < 11 cannot be shimmed
+              return;
+            }
+            // probably Chrome or some old Mobile stock browser
+            set = function(proto) {
+              this[magic] = proto;
+            };
+            // please note that this will **not** work
+            // in those browsers that do not inherit
+            // __proto__ by mistake from Object.prototype
+            // in these cases we should probably throw an error
+            // or at least be informed about the issue
+            setPrototypeOf.polyfill = setPrototypeOf(
+              setPrototypeOf({}, null),
+              Object.prototype
+            ) instanceof Object;
+            // setPrototypeOf.polyfill === true means it works as meant
+            // setPrototypeOf.polyfill === false means it's not 100% reliable
+            // setPrototypeOf.polyfill === undefined
+            // or
+            // setPrototypeOf.polyfill ==  null means it's not a polyfill
+            // which means it works as expected
+            // we can even delete Object.prototype.__proto__;
+          }
+          return setPrototypeOf;
+        })(Object, '__proto__')
+      });
+    }
+
+    // Workaround bug in Opera 12 where setPrototypeOf(x, null) doesn't work,
+    // but Object.create(null) does.
+    if (Object.setPrototypeOf && Object.getPrototypeOf &&
+        Object.getPrototypeOf(Object.setPrototypeOf({}, null)) !== null &&
+        Object.getPrototypeOf(Object.create(null)) === null) {
+      (function() {
+        var FAKENULL = Object.create(null);
+        var gpo = Object.getPrototypeOf, spo = Object.setPrototypeOf;
+        Object.getPrototypeOf = function(o) {
+          var result = gpo(o);
+          return result === FAKENULL ? null : result;
+        };
+        Object.setPrototypeOf = function(o, p) {
+          if (p === null) { p = FAKENULL; }
+          return spo(o, p);
+        };
+        Object.setPrototypeOf.polyfill = false;
+      })();
+    }
+
+    try {
+      Object.keys('foo');
+    } catch (e) {
+      var originalObjectKeys = Object.keys;
+      Object.keys = function (obj) {
+        return originalObjectKeys(ES.ToObject(obj));
+      };
+    }
+
+    var MathShims = {
+      acosh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < 1) return NaN;
+        if (value === 1) return 0;
+        if (value === Infinity) return value;
+        return Math.log(value + Math.sqrt(value * value - 1));
+      },
+
+      asinh: function(value) {
+        value = Number(value);
+        if (value === 0 || !global_isFinite(value)) {
+          return value;
+        }
+        return value < 0 ? -Math.asinh(-value) : Math.log(value + Math.sqrt(value * value + 1));
+      },
+
+      atanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < -1 || value > 1) {
+          return NaN;
+        }
+        if (value === -1) return -Infinity;
+        if (value === 1) return Infinity;
+        if (value === 0) return value;
+        return 0.5 * Math.log((1 + value) / (1 - value));
+      },
+
+      cbrt: function(value) {
+        value = Number(value);
+        if (value === 0) return value;
+        var negate = value < 0, result;
+        if (negate) value = -value;
+        result = Math.pow(value, 1/3);
+        return negate ? -result : result;
+      },
+
+      clz32: function(value) {
+        // See https://bugs.ecmascript.org/show_bug.cgi?id=2465
+        value = Number(value);
+        var number = ES.ToUint32(value);
+        if (number === 0) {
+          return 32;
+        }
+        return 32 - (number).toString(2).length;
+      },
+
+      cosh: function(value) {
+        value = Number(value);
+        if (value === 0) return 1; // +0 or -0
+        if (Number.isNaN(value)) return NaN;
+        if (!global_isFinite(value)) return Infinity;
+        if (value < 0) value = -value;
+        if (value > 21) return Math.exp(value) / 2;
+        return (Math.exp(value) + Math.exp(-value)) / 2;
+      },
+
+      expm1: function(value) {
+        value = Number(value);
+        if (value === -Infinity) return -1;
+        if (!global_isFinite(value) || value === 0) return value;
+        return Math.exp(value) - 1;
+      },
+
+      hypot: function(x, y) {
+        var anyNaN = false;
+        var allZero = true;
+        var anyInfinity = false;
+        var numbers = [];
+        Array.prototype.every.call(arguments, function(arg) {
+          var num = Number(arg);
+          if (Number.isNaN(num)) anyNaN = true;
+          else if (num === Infinity || num === -Infinity) anyInfinity = true;
+          else if (num !== 0) allZero = false;
+          if (anyInfinity) {
+            return false;
+          } else if (!anyNaN) {
+            numbers.push(Math.abs(num));
+          }
+          return true;
+        });
+        if (anyInfinity) return Infinity;
+        if (anyNaN) return NaN;
+        if (allZero) return 0;
+
+        numbers.sort(function (a, b) { return b - a; });
+        var largest = numbers[0];
+        var divided = numbers.map(function (number) { return number / largest; });
+        var sum = divided.reduce(function (sum, number) { return sum += number * number; }, 0);
+        return largest * Math.sqrt(sum);
+      },
+
+      log2: function(value) {
+        return Math.log(value) * Math.LOG2E;
+      },
+
+      log10: function(value) {
+        return Math.log(value) * Math.LOG10E;
+      },
+
+      log1p: function(value) {
+        value = Number(value);
+        if (value < -1 || Number.isNaN(value)) return NaN;
+        if (value === 0 || value === Infinity) return value;
+        if (value === -1) return -Infinity;
+        var result = 0;
+        var n = 50;
+
+        if (value < 0 || value > 1) return Math.log(1 + value);
+        for (var i = 1; i < n; i++) {
+          if ((i % 2) === 0) {
+            result -= Math.pow(value, i) / i;
+          } else {
+            result += Math.pow(value, i) / i;
+          }
+        }
+
+        return result;
+      },
+
+      sign: function(value) {
+        var number = +value;
+        if (number === 0) return number;
+        if (Number.isNaN(number)) return number;
+        return number < 0 ? -1 : 1;
+      },
+
+      sinh: function(value) {
+        value = Number(value);
+        if (!global_isFinite(value) || value === 0) return value;
+        return (Math.exp(value) - Math.exp(-value)) / 2;
+      },
+
+      tanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value === 0) return value;
+        if (value === Infinity) return 1;
+        if (value === -Infinity) return -1;
+        return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+      },
+
+      trunc: function(value) {
+        var number = Number(value);
+        return number < 0 ? -Math.floor(-number) : Math.floor(number);
+      },
+
+      imul: function(x, y) {
+        // taken from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
+        x = ES.ToUint32(x);
+        y = ES.ToUint32(y);
+        var ah  = (x >>> 16) & 0xffff;
+        var al = x & 0xffff;
+        var bh  = (y >>> 16) & 0xffff;
+        var bl = y & 0xffff;
+        // the shift by 0 fixes the sign on the high part
+        // the final |0 converts the unsigned value into a signed value
+        return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);
+      },
+
+      fround: function(x) {
+        if (x === 0 || x === Infinity || x === -Infinity || Number.isNaN(x)) {
+          return x;
+        }
+        var num = Number(x);
+        return numberConversion.toFloat32(num);
+      }
+    };
+    defineProperties(Math, MathShims);
+
+    if (Math.imul(0xffffffff, 5) !== -5) {
+      // Safari 6.1, at least, reports "0" for this value
+      Math.imul = MathShims.imul;
+    }
+
+    // Promises
+    // Simplest possible implementation; use a 3rd-party library if you
+    // want the best possible speed and/or long stack traces.
+    var PromiseShim = (function() {
+
+      var Promise, Promise$prototype;
+
+      ES.IsPromise = function(promise) {
+        if (!ES.TypeIsObject(promise)) {
+          return false;
+        }
+        if (!promise._promiseConstructor) {
+          // _promiseConstructor is a bit more unique than _status, so we'll
+          // check that instead of the [[PromiseStatus]] internal field.
+          return false;
+        }
+        if (promise._status === undefined) {
+          return false; // uninitialized
+        }
+        return true;
+      };
+
+      // "PromiseCapability" in the spec is what most promise implementations
+      // call a "deferred".
+      var PromiseCapability = function(C) {
+        if (!ES.IsCallable(C)) {
+          throw new TypeError('bad promise constructor');
+        }
+        var capability = this;
+        var resolver = function(resolve, reject) {
+          capability.resolve = resolve;
+          capability.reject = reject;
+        };
+        capability.promise = ES.Construct(C, [resolver]);
+        // see https://bugs.ecmascript.org/show_bug.cgi?id=2478
+        if (!capability.promise._es6construct) {
+          throw new TypeError('bad promise constructor');
+        }
+        if (!(ES.IsCallable(capability.resolve) &&
+              ES.IsCallable(capability.reject))) {
+          throw new TypeError('bad promise constructor');
+        }
+      };
+
+      // find an appropriate setImmediate-alike
+      var setTimeout = globals.setTimeout;
+      var makeZeroTimeout;
+      if (typeof window !== 'undefined' && ES.IsCallable(window.postMessage)) {
+        makeZeroTimeout = function() {
+          // from http://dbaron.org/log/20100309-faster-timeouts
+          var timeouts = [];
+          var messageName = "zero-timeout-message";
+          var setZeroTimeout = function(fn) {
+            timeouts.push(fn);
+            window.postMessage(messageName, "*");
+          };
+          var handleMessage = function(event) {
+            if (event.source == window && event.data == messageName) {
+              event.stopPropagation();
+              if (timeouts.length === 0) { return; }
+              var fn = timeouts.shift();
+              fn();
+            }
+          };
+          window.addEventListener("message", handleMessage, true);
+          return setZeroTimeout;
+        };
+      }
+      var makePromiseAsap = function() {
+        // An efficient task-scheduler based on a pre-existing Promise
+        // implementation, which we can use even if we override the
+        // global Promise below (in order to workaround bugs)
+        // https://github.com/Raynos/observ-hash/issues/2#issuecomment-35857671
+        var P = globals.Promise;
+        return P && P.resolve && function(task) {
+          return P.resolve().then(task);
+        };
+      };
+      var enqueue = ES.IsCallable(globals.setImmediate) ?
+        globals.setImmediate.bind(globals) :
+        typeof process === 'object' && process.nextTick ? process.nextTick :
+        makePromiseAsap() ||
+        (ES.IsCallable(makeZeroTimeout) ? makeZeroTimeout() :
+        function(task) { setTimeout(task, 0); }); // fallback
+
+      var triggerPromiseReactions = function(reactions, x) {
+        reactions.forEach(function(reaction) {
+          enqueue(function() {
+            // PromiseReactionTask
+            var handler = reaction.handler;
+            var capability = reaction.capability;
+            var resolve = capability.resolve;
+            var reject = capability.reject;
+            try {
+              var result = handler(x);
+              if (result === capability.promise) {
+                throw new TypeError('self resolution');
+              }
+              var updateResult =
+                updatePromiseFromPotentialThenable(result, capability);
+              if (!updateResult) {
+                resolve(result);
+              }
+            } catch (e) {
+              reject(e);
+            }
+          });
+        });
+      };
+
+      var updatePromiseFromPotentialThenable = function(x, capability) {
+        if (!ES.TypeIsObject(x)) {
+          return false;
+        }
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          var then = x.then; // only one invocation of accessor
+          if (!ES.IsCallable(then)) { return false; }
+          then.call(x, resolve, reject);
+        } catch(e) {
+          reject(e);
+        }
+        return true;
+      };
+
+      var promiseResolutionHandler = function(promise, onFulfilled, onRejected){
+        return function(x) {
+          if (x === promise) {
+            return onRejected(new TypeError('self resolution'));
+          }
+          var C = promise._promiseConstructor;
+          var capability = new PromiseCapability(C);
+          var updateResult = updatePromiseFromPotentialThenable(x, capability);
+          if (updateResult) {
+            return capability.promise.then(onFulfilled, onRejected);
+          } else {
+            return onFulfilled(x);
+          }
+        };
+      };
+
+      Promise = function(resolver) {
+        var promise = this;
+        promise = emulateES6construct(promise);
+        if (!promise._promiseConstructor) {
+          // we use _promiseConstructor as a stand-in for the internal
+          // [[PromiseStatus]] field; it's a little more unique.
+          throw new TypeError('bad promise');
+        }
+        if (promise._status !== undefined) {
+          throw new TypeError('promise already initialized');
+        }
+        // see https://bugs.ecmascript.org/show_bug.cgi?id=2482
+        if (!ES.IsCallable(resolver)) {
+          throw new TypeError('not a valid resolver');
+        }
+        promise._status = 'unresolved';
+        promise._resolveReactions = [];
+        promise._rejectReactions = [];
+
+        var resolve = function(resolution) {
+          if (promise._status !== 'unresolved') { return; }
+          var reactions = promise._resolveReactions;
+          promise._result = resolution;
+          promise._resolveReactions = undefined;
+          promise._rejectReactions = undefined;
+          promise._status = 'has-resolution';
+          triggerPromiseReactions(reactions, resolution);
+        };
+        var reject = function(reason) {
+          if (promise._status !== 'unresolved') { return; }
+          var reactions = promise._rejectReactions;
+          promise._result = reason;
+          promise._resolveReactions = undefined;
+          promise._rejectReactions = undefined;
+          promise._status = 'has-rejection';
+          triggerPromiseReactions(reactions, reason);
+        };
+        try {
+          resolver(resolve, reject);
+        } catch (e) {
+          reject(e);
+        }
+        return promise;
+      };
+      Promise$prototype = Promise.prototype;
+      defineProperties(Promise, {
+        '@@create': function(obj) {
+          var constructor = this;
+          // AllocatePromise
+          // The `obj` parameter is a hack we use for es5
+          // compatibility.
+          var prototype = constructor.prototype || Promise$prototype;
+          obj = obj || create(prototype);
+          defineProperties(obj, {
+            _status: undefined,
+            _result: undefined,
+            _resolveReactions: undefined,
+            _rejectReactions: undefined,
+            _promiseConstructor: undefined
+          });
+          obj._promiseConstructor = constructor;
+          return obj;
+        }
+      });
+
+      var _promiseAllResolver = function(index, values, capability, remaining) {
+        var done = false;
+        return function(x) {
+          if (done) { return; } // protect against being called multiple times
+          done = true;
+          values[index] = x;
+          if ((--remaining.count) === 0) {
+            var resolve = capability.resolve;
+            resolve(values); // call w/ this===undefined
+          }
+        };
+      };
+
+      Promise.all = function(iterable) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          if (!ES.IsIterable(iterable)) {
+            throw new TypeError('bad iterable');
+          }
+          var it = ES.GetIterator(iterable);
+          var values = [], remaining = { count: 1 };
+          for (var index = 0; ; index++) {
+            var next = ES.IteratorNext(it);
+            if (next.done) {
+              break;
+            }
+            var nextPromise = C.resolve(next.value);
+            var resolveElement = _promiseAllResolver(
+              index, values, capability, remaining
+            );
+            remaining.count++;
+            nextPromise.then(resolveElement, capability.reject);
+          }
+          if ((--remaining.count) === 0) {
+            resolve(values); // call w/ this===undefined
+          }
+        } catch (e) {
+          reject(e);
+        }
+        return capability.promise;
+      };
+
+      Promise.race = function(iterable) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          if (!ES.IsIterable(iterable)) {
+            throw new TypeError('bad iterable');
+          }
+          var it = ES.GetIterator(iterable);
+          while (true) {
+            var next = ES.IteratorNext(it);
+            if (next.done) {
+              // If iterable has no items, resulting promise will never
+              // resolve; see:
+              // https://github.com/domenic/promises-unwrapping/issues/75
+              // https://bugs.ecmascript.org/show_bug.cgi?id=2515
+              break;
+            }
+            var nextPromise = C.resolve(next.value);
+            nextPromise.then(resolve, reject);
+          }
+        } catch (e) {
+          reject(e);
+        }
+        return capability.promise;
+      };
+
+      Promise.reject = function(reason) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var reject = capability.reject;
+        reject(reason); // call with this===undefined
+        return capability.promise;
+      };
+
+      Promise.resolve = function(v) {
+        var C = this;
+        if (ES.IsPromise(v)) {
+          var constructor = v._promiseConstructor;
+          if (constructor === C) { return v; }
+        }
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        resolve(v); // call with this===undefined
+        return capability.promise;
+      };
+
+      Promise.prototype['catch'] = function( onRejected ) {
+        return this.then(undefined, onRejected);
+      };
+
+      Promise.prototype.then = function( onFulfilled, onRejected ) {
+        var promise = this;
+        if (!ES.IsPromise(promise)) { throw new TypeError('not a promise'); }
+        // this.constructor not this._promiseConstructor; see
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2513
+        var C = this.constructor;
+        var capability = new PromiseCapability(C);
+        if (!ES.IsCallable(onRejected)) {
+          onRejected = function(e) { throw e; };
+        }
+        if (!ES.IsCallable(onFulfilled)) {
+          onFulfilled = function(x) { return x; };
+        }
+        var resolutionHandler =
+          promiseResolutionHandler(promise, onFulfilled, onRejected);
+        var resolveReaction =
+          { capability: capability, handler: resolutionHandler };
+        var rejectReaction =
+          { capability: capability, handler: onRejected };
+        switch (promise._status) {
+        case 'unresolved':
+          promise._resolveReactions.push(resolveReaction);
+          promise._rejectReactions.push(rejectReaction);
+          break;
+        case 'has-resolution':
+          triggerPromiseReactions([resolveReaction], promise._result);
+          break;
+        case 'has-rejection':
+          triggerPromiseReactions([rejectReaction], promise._result);
+          break;
+        default:
+          throw new TypeError('unexpected');
+        }
+        return capability.promise;
+      };
+
+      return Promise;
+    })();
+    // export the Promise constructor.
+    defineProperties(globals, { Promise: PromiseShim });
+    // In Chrome 33 (and thereabouts) Promise is defined, but the
+    // implementation is buggy in a number of ways.  Let's check subclassing
+    // support to see if we have a buggy implementation.
+    var promiseSupportsSubclassing = supportsSubclassing(globals.Promise, function(S) {
+      return S.resolve(42) instanceof S;
+    });
+    var promiseIgnoresNonFunctionThenCallbacks = (function () {
+      try {
+        globals.Promise.reject(42).then(null, 5).then(null, function () {});
+        return true;
+      } catch (ex) {
+        return false;
+      }
+    }());
+    if (!promiseSupportsSubclassing || !promiseIgnoresNonFunctionThenCallbacks) {
+      globals.Promise = PromiseShim;
+    }
+
+    // Map and Set require a true ES5 environment
+    if (supportsDescriptors) {
+
+      var fastkey = function fastkey(key) {
+        var type = typeof key;
+        if (type === 'string') {
+          return '$' + key;
+        } else if (type === 'number') {
+          // note that -0 will get coerced to "0" when used as a property key
+          return key;
+        }
+        return null;
+      };
+
+      var emptyObject = function emptyObject() {
+        // accomodate some older not-quite-ES5 browsers
+        return Object.create ? Object.create(null) : {};
+      };
+
+      var collectionShims = {
+        Map: (function() {
+
+          var empty = {};
+
+          function MapEntry(key, value) {
+            this.key = key;
+            this.value = value;
+            this.next = null;
+            this.prev = null;
+          }
+
+          MapEntry.prototype.isRemoved = function() {
+            return this.key === empty;
+          };
+
+          function MapIterator(map, kind) {
+            this.head = map._head;
+            this.i = this.head;
+            this.kind = kind;
+          }
+
+          MapIterator.prototype = {
+            next: function() {
+              var i = this.i, kind = this.kind, head = this.head, result;
+              if (this.i === undefined) {
+                return { value: undefined, done: true };
+              }
+              while (i.isRemoved() && i !== head) {
+                // back up off of removed entries
+                i = i.prev;
+              }
+              // advance to next unreturned element.
+              while (i.next !== head) {
+                i = i.next;
+                if (!i.isRemoved()) {
+                  if (kind === "key") {
+                    result = i.key;
+                  } else if (kind === "value") {
+                    result = i.value;
+                  } else {
+                    result = [i.key, i.value];
+                  }
+                  this.i = i;
+                  return { value: result, done: false };
+                }
+              }
+              // once the iterator is done, it is done forever.
+              this.i = undefined;
+              return { value: undefined, done: true };
+            }
+          };
+          addIterator(MapIterator.prototype);
+
+          function Map(iterable) {
+            var map = this;
+            map = emulateES6construct(map);
+            if (!map._es6map) {
+              throw new TypeError('bad map');
+            }
+
+            var head = new MapEntry(null, null);
+            // circular doubly-linked list.
+            head.next = head.prev = head;
+
+            defineProperties(map, {
+              '_head': head,
+              '_storage': emptyObject(),
+              '_size': 0
+            });
+
+            // Optionally initialize map from iterable
+            if (iterable !== undefined && iterable !== null) {
+              var it = ES.GetIterator(iterable);
+              var adder = map.set;
+              if (!ES.IsCallable(adder)) { throw new TypeError('bad map'); }
+              while (true) {
+                var next = ES.IteratorNext(it);
+                if (next.done) { break; }
+                var nextItem = next.value;
+                if (!ES.TypeIsObject(nextItem)) {
+                  throw new TypeError('expected iterable of pairs');
+                }
+                adder.call(map, nextItem[0], nextItem[1]);
+              }
+            }
+            return map;
+          }
+          var Map$prototype = Map.prototype;
+          defineProperties(Map, {
+            '@@create': function(obj) {
+              var constructor = this;
+              var prototype = constructor.prototype || Map$prototype;
+              obj = obj || create(prototype);
+              defineProperties(obj, { _es6map: true });
+              return obj;
+            }
+          });
+
+          Object.defineProperty(Map.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._size === 'undefined') {
+                throw new TypeError('size method called on incompatible Map');
+              }
+              return this._size;
+            }
+          });
+
+          defineProperties(Map.prototype, {
+            get: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                var entry = this._storage[fkey];
+                return entry ? entry.value : undefined;
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return i.value;
+                }
+              }
+              return undefined;
+            },
+
+            has: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                return typeof this._storage[fkey] !== 'undefined';
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            set: function(key, value) {
+              var head = this._head, i = head, entry;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] !== 'undefined') {
+                  this._storage[fkey].value = value;
+                  return;
+                } else {
+                  entry = this._storage[fkey] = new MapEntry(key, value);
+                  i = head.prev;
+                  // fall through
+                }
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.value = value;
+                  return;
+                }
+              }
+              entry = entry || new MapEntry(key, value);
+              if (ES.SameValue(-0, key)) {
+                entry.key = +0; // coerce -0 to +0 in entry
+              }
+              entry.next = this._head;
+              entry.prev = this._head.prev;
+              entry.prev.next = entry;
+              entry.next.prev = entry;
+              this._size += 1;
+            },
+
+            'delete': function(key) {
+              var head = this._head, i = head;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] === 'undefined') {
+                  return false;
+                }
+                i = this._storage[fkey].prev;
+                delete this._storage[fkey];
+                // fall through
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.key = i.value = empty;
+                  i.prev.next = i.next;
+                  i.next.prev = i.prev;
+                  this._size -= 1;
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            clear: function() {
+              this._size = 0;
+              this._storage = emptyObject();
+              var head = this._head, i = head, p = i.next;
+              while ((i = p) !== head) {
+                i.key = i.value = empty;
+                p = i.next;
+                i.next = i.prev = head;
+              }
+              head.next = head.prev = head;
+            },
+
+            keys: function() {
+              return new MapIterator(this, "key");
+            },
+
+            values: function() {
+              return new MapIterator(this, "value");
+            },
+
+            entries: function() {
+              return new MapIterator(this, "key+value");
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var it = this.entries();
+              for (var entry = it.next(); !entry.done; entry = it.next()) {
+                callback.call(context, entry.value[1], entry.value[0], this);
+              }
+            }
+          });
+          addIterator(Map.prototype, function() { return this.entries(); });
+
+          return Map;
+        })(),
+
+        Set: (function() {
+          // Creating a Map is expensive.  To speed up the common case of
+          // Sets containing only string or numeric keys, we use an object
+          // as backing storage and lazily create a full Map only when
+          // required.
+          var SetShim = function Set(iterable) {
+            var set = this;
+            set = emulateES6construct(set);
+            if (!set._es6set) {
+              throw new TypeError('bad set');
+            }
+
+            defineProperties(set, {
+              '[[SetData]]': null,
+              '_storage': emptyObject()
+            });
+
+            // Optionally initialize map from iterable
+            if (iterable !== undefined && iterable !== null) {
+              var it = ES.GetIterator(iterable);
+              var adder = set.add;
+              if (!ES.IsCallable(adder)) { throw new TypeError('bad set'); }
+              while (true) {
+                var next = ES.IteratorNext(it);
+                if (next.done) { break; }
+                var nextItem = next.value;
+                adder.call(set, nextItem);
+              }
+            }
+            return set;
+          };
+          var Set$prototype = SetShim.prototype;
+          defineProperties(SetShim, {
+            '@@create': function(obj) {
+              var constructor = this;
+              var prototype = constructor.prototype || Set$prototype;
+              obj = obj || create(prototype);
+              defineProperties(obj, { _es6set: true });
+              return obj;
+            }
+          });
+
+          // Switch from the object backing storage to a full Map.
+          var ensureMap = function ensureMap(set) {
+            if (!set['[[SetData]]']) {
+              var m = set['[[SetData]]'] = new collectionShims.Map();
+              Object.keys(set._storage).forEach(function(k) {
+                // fast check for leading '$'
+                if (k.charCodeAt(0) === 36) {
+                  k = k.slice(1);
+                } else {
+                  k = +k;
+                }
+                m.set(k, k);
+              });
+              set._storage = null; // free old backing storage
+            }
+          };
+
+          Object.defineProperty(SetShim.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._storage === 'undefined') {
+                // https://github.com/paulmillr/es6-shim/issues/176
+                throw new TypeError('size method called on incompatible Set');
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].size;
+            }
+          });
+
+          defineProperties(SetShim.prototype, {
+            has: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                return !!this._storage[fkey];
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].has(key);
+            },
+
+            add: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                this._storage[fkey]=true;
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].set(key, key);
+            },
+
+            'delete': function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                delete this._storage[fkey];
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]']['delete'](key);
+            },
+
+            clear: function() {
+              if (this._storage) {
+                this._storage = emptyObject();
+                return;
+              }
+              return this['[[SetData]]'].clear();
+            },
+
+            keys: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].keys();
+            },
+
+            values: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].values();
+            },
+
+            entries: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].entries();
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var entireSet = this;
+              ensureMap(this);
+              this['[[SetData]]'].forEach(function(value, key) {
+                callback.call(context, key, key, entireSet);
+              });
+            }
+          });
+          addIterator(SetShim.prototype, function() { return this.values(); });
+
+          return SetShim;
+        })()
+      };
+      defineProperties(globals, collectionShims);
+
+      if (globals.Map || globals.Set) {
+        /*
+          - In Firefox < 23, Map#size is a function.
+          - In all current Firefox, Set#entries/keys/values & Map#clear do not exist
+          - https://bugzilla.mozilla.org/show_bug.cgi?id=869996
+          - In Firefox 24, Map and Set do not implement forEach
+          - In Firefox 25 at least, Map and Set are callable without "new"
+        */
+        if (
+          typeof globals.Map.prototype.clear !== 'function' ||
+          new globals.Set().size !== 0 ||
+          new globals.Map().size !== 0 ||
+          typeof globals.Map.prototype.keys !== 'function' ||
+          typeof globals.Set.prototype.keys !== 'function' ||
+          typeof globals.Map.prototype.forEach !== 'function' ||
+          typeof globals.Set.prototype.forEach !== 'function' ||
+          isCallableWithoutNew(globals.Map) ||
+          isCallableWithoutNew(globals.Set) ||
+          !supportsSubclassing(globals.Map, function(M) {
+            return (new M([])) instanceof M;
+          })
+        ) {
+          globals.Map = collectionShims.Map;
+          globals.Set = collectionShims.Set;
+        }
+      }
+      // Shim incomplete iterator implementations.
+      addIterator(Object.getPrototypeOf((new globals.Map()).keys()));
+      addIterator(Object.getPrototypeOf((new globals.Set()).keys()));
+    }
+  };
+
+  if (typeof define === 'function' && define.amd) {
+    define(main); // RequireJS
+  } else {
+    main(); // CommonJS and <script>
+  }
+})();
+
diff --git a/ajax/libs/es6-shim/0.15.0/es6-shim.map b/ajax/libs/es6-shim/0.15.0/es6-shim.map
new file mode 100644
index 000000000..3543b6244
--- /dev/null
+++ b/ajax/libs/es6-shim/0.15.0/es6-shim.map
@@ -0,0 +1 @@
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new file mode 100644
index 000000000..d5b2c2432
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t=arguments.length>1?arguments[1]:null;var r=this.entries();for(var n=r.next();!n.done;n=r.next()){e.call(t,n.value[1],n.value[0],this)}}});m(a.prototype,function(){return this.entries()});return a}(),Set:function(){var t=function a(t){var r=this;r=d(r);if(!r._es6set){throw new TypeError("bad set")}y(r,{"[[SetData]]":null,_storage:D()});if(t!==e&&t!==null){var n=j.GetIterator(t);var a=r.add;if(!j.IsCallable(a)){throw new TypeError("bad set")}while(true){var i=j.IteratorNext(n);if(i.done){break}var o=i.value;a.call(r,o)}}return r};var r=t.prototype;y(t,{"@@create":function(e){var t=this;var n=t.prototype||r;e=e||b(n);y(e,{_es6set:true});return e}});var n=function i(e){if(!e["[[SetData]]"]){var t=e["[[SetData]]"]=new G.Map;Object.keys(e._storage).forEach(function(e){if(e.charCodeAt(0)===36){e=e.slice(1)}else{e=+e}t.set(e,e)});e._storage=null}};Object.defineProperty(t.prototype,"size",{configurable:true,enumerable:false,get:function(){if(typeof this._storage==="undefined"){throw new TypeError("size method called on incompatible Set")}n(this);return this["[[SetData]]"].size}});y(t.prototype,{has:function(e){var t;if(this._storage&&(t=z(e))!==null){return!!this._storage[t]}n(this);return this["[[SetData]]"].has(e)},add:function(e){var t;if(this._storage&&(t=z(e))!==null){this._storage[t]=true;return}n(this);return this["[[SetData]]"].set(e,e)},"delete":function(e){var t;if(this._storage&&(t=z(e))!==null){delete this._storage[t];return}n(this);return this["[[SetData]]"]["delete"](e)},clear:function(){if(this._storage){this._storage=D();return}return this["[[SetData]]"].clear()},keys:function(){n(this);return this["[[SetData]]"].keys()},values:function(){n(this);return this["[[SetData]]"].values()},entries:function(){n(this);return this["[[SetData]]"].entries()},forEach:function(e){var t=arguments.length>1?arguments[1]:null;var r=this;n(this);this["[[SetData]]"].forEach(function(n,a){e.call(t,a,a,r)})}});m(t.prototype,function(){return this.values()});return t}()};y(o,G);if(o.Map||o.Set){if(typeof o.Map.prototype.clear!=="function"||(new o.Set).size!==0||(new o.Map).size!==0||typeof o.Map.prototype.keys!=="function"||typeof o.Set.prototype.keys!=="function"||typeof o.Map.prototype.forEach!=="function"||typeof o.Set.prototype.forEach!=="function"||t(o.Map)||t(o.Set)||!r(o.Map,function(e){return new e([])instanceof e})){o.Map=G.Map;o.Set=G.Set}}m(Object.getPrototypeOf((new o.Map).keys()));m(Object.getPrototypeOf((new o.Set).keys()))}};if(typeof define==="function"&&define.amd){define(o)}else{o()}})();
+//# sourceMappingURL=es6-shim.map
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.15.1/es6-shim.js b/ajax/libs/es6-shim/0.15.1/es6-shim.js
new file mode 100644
index 000000000..77546cd52
--- /dev/null
+++ b/ajax/libs/es6-shim/0.15.1/es6-shim.js
@@ -0,0 +1,1881 @@
+// ES6-shim 0.15.1 (c) 2013-2014 Paul Miller (http://paulmillr.com)
+// ES6-shim may be freely distributed under the MIT license.
+// For more details and documentation:
+// https://github.com/paulmillr/es6-shim/
+
+(function(undefined) {
+  'use strict';
+
+  var isCallableWithoutNew = function(func) {
+    try { func(); }
+    catch (e) { return false; }
+    return true;
+  };
+
+  var supportsSubclassing = function(C, f) {
+    /* jshint proto:true */
+    try {
+      var Sub = function() { C.apply(this, arguments); };
+      if (!Sub.__proto__) { return false; /* skip test on IE < 11 */ }
+      Object.setPrototypeOf(Sub, C);
+      Sub.prototype = Object.create(C.prototype, {
+        constructor: { value: C }
+      });
+      return f(Sub);
+    } catch (e) {
+      return false;
+    }
+  };
+
+  var arePropertyDescriptorsSupported = function() {
+    try {
+      Object.defineProperty({}, 'x', {});
+      return true;
+    } catch (e) { /* this is IE 8. */
+      return false;
+    }
+  };
+
+  var startsWithRejectsRegex = function() {
+    var rejectsRegex = false;
+    if (String.prototype.startsWith) {
+      try {
+        '/a/'.startsWith(/a/);
+      } catch (e) { /* this is spec compliant */
+        rejectsRegex = true;
+      }
+    }
+    return rejectsRegex;
+  };
+
+  /*jshint evil: true */
+  var getGlobal = new Function('return this;');
+  /*jshint evil: false */
+
+  var main = function() {
+    var globals = getGlobal();
+    var global_isFinite = globals.isFinite;
+    var supportsDescriptors = !!Object.defineProperty && arePropertyDescriptorsSupported();
+    var startsWithIsCompliant = startsWithRejectsRegex();
+    var _slice = Array.prototype.slice;
+    var _indexOf = String.prototype.indexOf;
+    var _toString = Object.prototype.toString;
+    var _hasOwnProperty = Object.prototype.hasOwnProperty;
+    var ArrayIterator; // make our implementation private
+
+    // Define configurable, writable and non-enumerable props
+    // if they don’t exist.
+    var defineProperties = function(object, map) {
+      Object.keys(map).forEach(function(name) {
+        var method = map[name];
+        if (name in object) return;
+        if (supportsDescriptors) {
+          Object.defineProperty(object, name, {
+            configurable: true,
+            enumerable: false,
+            writable: true,
+            value: method
+          });
+        } else {
+          object[name] = method;
+        }
+      });
+    };
+
+    // Simple shim for Object.create on ES3 browsers
+    // (unlike real shim, no attempt to support `prototype === null`)
+    var create = Object.create || function(prototype, properties) {
+      function Type() {}
+      Type.prototype = prototype;
+      var object = new Type();
+      if (typeof properties !== "undefined") {
+        defineProperties(object, properties);
+      }
+      return object;
+    };
+
+    // This is a private name in the es6 spec, equal to '[Symbol.iterator]'
+    // we're going to use an arbitrary _-prefixed name to make our shims
+    // work properly with each other, even though we don't have full Iterator
+    // support.  That is, `Array.from(map.keys())` will work, but we don't
+    // pretend to export a "real" Iterator interface.
+    var $iterator$ = (typeof Symbol === 'function' && Symbol.iterator) ||
+      '_es6shim_iterator_';
+    // Firefox ships a partial implementation using the name @@iterator.
+    // https://bugzilla.mozilla.org/show_bug.cgi?id=907077#c14
+    // So use that name if we detect it.
+    if (globals.Set && typeof new globals.Set()['@@iterator'] === 'function') {
+      $iterator$ = '@@iterator';
+    }
+    var addIterator = function(prototype, impl) {
+      if (!impl) { impl = function iterator() { return this; }; }
+      var o = {};
+      o[$iterator$] = impl;
+      defineProperties(prototype, o);
+    };
+
+    // taken directly from https://github.com/ljharb/is-arguments/blob/master/index.js
+    // can be replaced with require('is-arguments') if we ever use a build process instead
+    var isArguments = function isArguments(value) {
+      var str = _toString.call(value);
+      var result = str === '[object Arguments]';
+      if (!result) {
+        result = str !== '[object Array]' &&
+          value !== null &&
+          typeof value === 'object' &&
+          typeof value.length === 'number' &&
+          value.length >= 0 &&
+          _toString.call(value.callee) === '[object Function]';
+      }
+      return result;
+    };
+
+    var emulateES6construct = function(o) {
+      if (!ES.TypeIsObject(o)) throw new TypeError('bad object');
+      // es5 approximation to es6 subclass semantics: in es6, 'new Foo'
+      // would invoke Foo.@@create to allocation/initialize the new object.
+      // In es5 we just get the plain object.  So if we detect an
+      // uninitialized object, invoke o.constructor.@@create
+      if (!o._es6construct) {
+        if (o.constructor && ES.IsCallable(o.constructor['@@create'])) {
+          o = o.constructor['@@create'](o);
+        }
+        defineProperties(o, { _es6construct: true });
+      }
+      return o;
+    };
+
+    var ES = {
+      CheckObjectCoercible: function(x, optMessage) {
+        /* jshint eqnull:true */
+        if (x == null)
+          throw new TypeError(optMessage || ('Cannot call method on ' + x));
+        return x;
+      },
+
+      TypeIsObject: function(x) {
+        /* jshint eqnull:true */
+        // this is expensive when it returns false; use this function
+        // when you expect it to return true in the common case.
+        return x != null && Object(x) === x;
+      },
+
+      ToObject: function(o, optMessage) {
+        return Object(ES.CheckObjectCoercible(o, optMessage));
+      },
+
+      IsCallable: function(x) {
+        return typeof x === 'function' &&
+          // some versions of IE say that typeof /abc/ === 'function'
+          _toString.call(x) === '[object Function]';
+      },
+
+      ToInt32: function(x) {
+        return x >> 0;
+      },
+
+      ToUint32: function(x) {
+        return x >>> 0;
+      },
+
+      ToInteger: function(value) {
+        var number = +value;
+        if (Number.isNaN(number)) return 0;
+        if (number === 0 || !Number.isFinite(number)) return number;
+        return Math.sign(number) * Math.floor(Math.abs(number));
+      },
+
+      ToLength: function(value) {
+        var len = ES.ToInteger(value);
+        if (len <= 0) return 0; // includes converting -0 to +0
+        if (len > Number.MAX_SAFE_INTEGER) return Number.MAX_SAFE_INTEGER;
+        return len;
+      },
+
+      SameValue: function(a, b) {
+        if (a === b) {
+          // 0 === -0, but they are not identical.
+          if (a === 0) return 1 / a === 1 / b;
+          return true;
+        }
+        return Number.isNaN(a) && Number.isNaN(b);
+      },
+
+      SameValueZero: function(a, b) {
+        // same as SameValue except for SameValueZero(+0, -0) == true
+        return (a === b) || (Number.isNaN(a) && Number.isNaN(b));
+      },
+
+      IsIterable: function(o) {
+        return ES.TypeIsObject(o) &&
+          (o[$iterator$] !== undefined || isArguments(o));
+      },
+
+      GetIterator: function(o) {
+        if (isArguments(o)) {
+          // special case support for `arguments`
+          return new ArrayIterator(o, "value");
+        }
+        var it = o[$iterator$]();
+        if (!ES.TypeIsObject(it)) {
+          throw new TypeError('bad iterator');
+        }
+        return it;
+      },
+
+      IteratorNext: function(it) {
+        var result = (arguments.length > 1) ? it.next(arguments[1]) : it.next();
+        if (!ES.TypeIsObject(result)) {
+          throw new TypeError('bad iterator');
+        }
+        return result;
+      },
+
+      Construct: function(C, args) {
+        // CreateFromConstructor
+        var obj;
+        if (ES.IsCallable(C['@@create'])) {
+          obj = C['@@create']();
+        } else {
+          // OrdinaryCreateFromConstructor
+          obj = create(C.prototype || null);
+        }
+        // Mark that we've used the es6 construct path
+        // (see emulateES6construct)
+        defineProperties(obj, { _es6construct: true });
+        // Call the constructor.
+        var result = C.apply(obj, args);
+        return ES.TypeIsObject(result) ? result : obj;
+      }
+    };
+
+    var numberConversion = (function () {
+      // from https://github.com/inexorabletash/polyfill/blob/master/typedarray.js#L176-L266
+      // with permission and license, per https://twitter.com/inexorabletash/status/372206509540659200
+
+      function roundToEven(n) {
+        var w = Math.floor(n), f = n - w;
+        if (f < 0.5) {
+          return w;
+        }
+        if (f > 0.5) {
+          return w + 1;
+        }
+        return w % 2 ? w + 1 : w;
+      }
+
+      function packIEEE754(v, ebits, fbits) {
+        var bias = (1 << (ebits - 1)) - 1,
+          s, e, f, ln,
+          i, bits, str, bytes;
+
+        // Compute sign, exponent, fraction
+        if (v !== v) {
+          // NaN
+          // http://dev.w3.org/2006/webapi/WebIDL/#es-type-mapping
+          e = (1 << ebits) - 1;
+          f = Math.pow(2, fbits - 1);
+          s = 0;
+        } else if (v === Infinity || v === -Infinity) {
+          e = (1 << ebits) - 1;
+          f = 0;
+          s = (v < 0) ? 1 : 0;
+        } else if (v === 0) {
+          e = 0;
+          f = 0;
+          s = (1 / v === -Infinity) ? 1 : 0;
+        } else {
+          s = v < 0;
+          v = Math.abs(v);
+
+          if (v >= Math.pow(2, 1 - bias)) {
+            e = Math.min(Math.floor(Math.log(v) / Math.LN2), 1023);
+            f = roundToEven(v / Math.pow(2, e) * Math.pow(2, fbits));
+            if (f / Math.pow(2, fbits) >= 2) {
+              e = e + 1;
+              f = 1;
+            }
+            if (e > bias) {
+              // Overflow
+              e = (1 << ebits) - 1;
+              f = 0;
+            } else {
+              // Normal
+              e = e + bias;
+              f = f - Math.pow(2, fbits);
+            }
+          } else {
+            // Subnormal
+            e = 0;
+            f = roundToEven(v / Math.pow(2, 1 - bias - fbits));
+          }
+        }
+
+        // Pack sign, exponent, fraction
+        bits = [];
+        for (i = fbits; i; i -= 1) {
+          bits.push(f % 2 ? 1 : 0);
+          f = Math.floor(f / 2);
+        }
+        for (i = ebits; i; i -= 1) {
+          bits.push(e % 2 ? 1 : 0);
+          e = Math.floor(e / 2);
+        }
+        bits.push(s ? 1 : 0);
+        bits.reverse();
+        str = bits.join('');
+
+        // Bits to bytes
+        bytes = [];
+        while (str.length) {
+          bytes.push(parseInt(str.slice(0, 8), 2));
+          str = str.slice(8);
+        }
+        return bytes;
+      }
+
+      function unpackIEEE754(bytes, ebits, fbits) {
+        // Bytes to bits
+        var bits = [], i, j, b, str,
+            bias, s, e, f;
+
+        for (i = bytes.length; i; i -= 1) {
+          b = bytes[i - 1];
+          for (j = 8; j; j -= 1) {
+            bits.push(b % 2 ? 1 : 0);
+            b = b >> 1;
+          }
+        }
+        bits.reverse();
+        str = bits.join('');
+
+        // Unpack sign, exponent, fraction
+        bias = (1 << (ebits - 1)) - 1;
+        s = parseInt(str.slice(0, 1), 2) ? -1 : 1;
+        e = parseInt(str.slice(1, 1 + ebits), 2);
+        f = parseInt(str.slice(1 + ebits), 2);
+
+        // Produce number
+        if (e === (1 << ebits) - 1) {
+          return f !== 0 ? NaN : s * Infinity;
+        } else if (e > 0) {
+          // Normalized
+          return s * Math.pow(2, e - bias) * (1 + f / Math.pow(2, fbits));
+        } else if (f !== 0) {
+          // Denormalized
+          return s * Math.pow(2, -(bias - 1)) * (f / Math.pow(2, fbits));
+        } else {
+          return s < 0 ? -0 : 0;
+        }
+      }
+
+      function unpackFloat64(b) { return unpackIEEE754(b, 11, 52); }
+      function packFloat64(v) { return packIEEE754(v, 11, 52); }
+      function unpackFloat32(b) { return unpackIEEE754(b, 8, 23); }
+      function packFloat32(v) { return packIEEE754(v, 8, 23); }
+
+      var conversions = {
+        toFloat32: function (num) { return unpackFloat32(packFloat32(num)); }
+      };
+      if (typeof Float32Array !== 'undefined') {
+        var float32array = new Float32Array(1);
+        conversions.toFloat32 = function (num) {
+          float32array[0] = num;
+          return float32array[0];
+        };
+      }
+      return conversions;
+    }());
+
+    defineProperties(String, {
+      fromCodePoint: function(_) { // length = 1
+        var points = _slice.call(arguments, 0, arguments.length);
+        var result = [];
+        var next;
+        for (var i = 0, length = points.length; i < length; i++) {
+          next = Number(points[i]);
+          if (!ES.SameValue(next, ES.ToInteger(next)) ||
+              next < 0 || next > 0x10FFFF) {
+            throw new RangeError('Invalid code point ' + next);
+          }
+
+          if (next < 0x10000) {
+            result.push(String.fromCharCode(next));
+          } else {
+            next -= 0x10000;
+            result.push(String.fromCharCode((next >> 10) + 0xD800));
+            result.push(String.fromCharCode((next % 0x400) + 0xDC00));
+          }
+        }
+        return result.join('');
+      },
+
+      raw: function(callSite) { // raw.length===1
+        var substitutions = _slice.call(arguments, 1, arguments.length);
+        var cooked = ES.ToObject(callSite, 'bad callSite');
+        var rawValue = cooked.raw;
+        var raw = ES.ToObject(rawValue, 'bad raw value');
+        var len = Object.keys(raw).length;
+        var literalsegments = ES.ToLength(len);
+        if (literalsegments === 0) {
+          return '';
+        }
+
+        var stringElements = [];
+        var nextIndex = 0;
+        var nextKey, next, nextSeg, nextSub;
+        while (nextIndex < literalsegments) {
+          nextKey = String(nextIndex);
+          next = raw[nextKey];
+          nextSeg = String(next);
+          stringElements.push(nextSeg);
+          if (nextIndex + 1 >= literalsegments) {
+            break;
+          }
+          next = substitutions[nextKey];
+          if (next === undefined) {
+            break;
+          }
+          nextSub = String(next);
+          stringElements.push(nextSub);
+          nextIndex++;
+        }
+        return stringElements.join('');
+      }
+    });
+
+    var StringShims = {
+      // Fast repeat, uses the `Exponentiation by squaring` algorithm.
+      // Perf: http://jsperf.com/string-repeat2/2
+      repeat: (function() {
+        var repeat = function(s, times) {
+          if (times < 1) return '';
+          if (times % 2) return repeat(s, times - 1) + s;
+          var half = repeat(s, times / 2);
+          return half + half;
+        };
+
+        return function(times) {
+          var thisStr = String(ES.CheckObjectCoercible(this));
+          times = ES.ToInteger(times);
+          if (times < 0 || times === Infinity) {
+            throw new RangeError('Invalid String#repeat value');
+          }
+          return repeat(thisStr, times);
+        };
+      })(),
+
+      startsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "startsWith" with a regex');
+        searchStr = String(searchStr);
+        var startArg = arguments.length > 1 ? arguments[1] : undefined;
+        var start = Math.max(ES.ToInteger(startArg), 0);
+        return thisStr.slice(start, start + searchStr.length) === searchStr;
+      },
+
+      endsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "endsWith" with a regex');
+        searchStr = String(searchStr);
+        var thisLen = thisStr.length;
+        var posArg = arguments.length > 1 ? arguments[1] : undefined;
+        var pos = posArg === undefined ? thisLen : ES.ToInteger(posArg);
+        var end = Math.min(Math.max(pos, 0), thisLen);
+        return thisStr.slice(end - searchStr.length, end) === searchStr;
+      },
+
+      contains: function(searchString) {
+        var position = arguments.length > 1 ? arguments[1] : undefined;
+        // Somehow this trick makes method 100% compat with the spec.
+        return _indexOf.call(this, searchString, position) !== -1;
+      },
+
+      codePointAt: function(pos) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        var position = ES.ToInteger(pos);
+        var length = thisStr.length;
+        if (position < 0 || position >= length) return undefined;
+        var first = thisStr.charCodeAt(position);
+        var isEnd = (position + 1 === length);
+        if (first < 0xD800 || first > 0xDBFF || isEnd) return first;
+        var second = thisStr.charCodeAt(position + 1);
+        if (second < 0xDC00 || second > 0xDFFF) return first;
+        return ((first - 0xD800) * 1024) + (second - 0xDC00) + 0x10000;
+      }
+    };
+    defineProperties(String.prototype, StringShims);
+
+    var hasStringTrimBug = '\u0085'.trim().length !== 1;
+    if (hasStringTrimBug) {
+      var originalStringTrim = String.prototype.trim;
+      delete String.prototype.trim;
+      // whitespace from: http://es5.github.io/#x15.5.4.20
+      // implementation from https://github.com/es-shims/es5-shim/blob/v3.4.0/es5-shim.js#L1304-L1324
+      var ws = [
+        '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003',
+        '\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028',
+        '\u2029\uFEFF'
+      ].join('');
+      var trimBeginRegexp = new RegExp('^[' + ws + '][' + ws + ']*');
+      var trimEndRegexp = new RegExp('[' + ws + '][' + ws + ']*$');
+      defineProperties(String.prototype, {
+        trim: function() {
+          if (this === undefined || this === null) {
+            throw new TypeError("can't convert " + this + " to object");
+          }
+          return String(this)
+            .replace(trimBeginRegexp, "")
+            .replace(trimEndRegexp, "");
+          }
+      });
+    }
+
+    // see https://people.mozilla.org/~jorendorff/es6-draft.html#sec-string.prototype-@@iterator
+    var StringIterator = function(s) {
+      this._s = String(ES.CheckObjectCoercible(s));
+      this._i = 0;
+    };
+    StringIterator.prototype.next = function() {
+      var s = this._s, i = this._i;
+      if (s === undefined || i >= s.length) {
+        this._s = undefined;
+        return { value: undefined, done: true };
+      }
+      var first = s.charCodeAt(i), second, len;
+      if (first < 0xD800 || first > 0xDBFF || (i+1) == s.length) {
+        len = 1;
+      } else {
+        second = s.charCodeAt(i+1);
+        len = (second < 0xDC00 || second > 0xDFFF) ? 1 : 2;
+      }
+      this._i = i + len;
+      return { value: s.substr(i, len), done: false };
+    };
+    addIterator(StringIterator.prototype);
+    addIterator(String.prototype, function() {
+      return new StringIterator(this);
+    });
+
+    if (!startsWithIsCompliant) {
+      // Firefox has a noncompliant startsWith implementation
+      String.prototype.startsWith = StringShims.startsWith;
+      String.prototype.endsWith = StringShims.endsWith;
+    }
+
+    defineProperties(Array, {
+      from: function(iterable) {
+        var mapFn = arguments.length > 1 ? arguments[1] : undefined;
+
+        var list = ES.ToObject(iterable, 'bad iterable');
+        if (arguments.length > 1 && !ES.IsCallable(mapFn)) {
+          throw new TypeError('Array.from: when provided, the second argument must be a function');
+        }
+
+        var hasThisArg = arguments.length > 2;
+        var thisArg = hasThisArg ? arguments[2] : undefined;
+
+        var usingIterator = ES.IsIterable(list);
+        // does the spec really mean that Arrays should use ArrayIterator?
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2416
+        //if (Array.isArray(list)) { usingIterator=false; }
+        var length = usingIterator ? 0 : ES.ToLength(list.length);
+        var result = ES.IsCallable(this) ? Object(usingIterator ? new this() : new this(length)) : new Array(length);
+        var it = usingIterator ? ES.GetIterator(list) : null;
+        var value;
+
+        for (var i = 0; usingIterator || (i < length); i++) {
+          if (usingIterator) {
+            value = ES.IteratorNext(it);
+            if (value.done) {
+              length = i;
+              break;
+            }
+            value = value.value;
+          } else {
+            value = list[i];
+          }
+          if (mapFn) {
+            result[i] = hasThisArg ? mapFn.call(thisArg, value, i) : mapFn(value, i);
+          } else {
+            result[i] = value;
+          }
+        }
+
+        result.length = length;
+        return result;
+      },
+
+      of: function() {
+        return Array.from(arguments);
+      }
+    });
+
+    // Our ArrayIterator is private; see
+    // https://github.com/paulmillr/es6-shim/issues/252
+    ArrayIterator = function(array, kind) {
+        this.i = 0;
+        this.array = array;
+        this.kind = kind;
+    };
+
+    defineProperties(ArrayIterator.prototype, {
+      next: function() {
+        var i = this.i, array = this.array;
+        if (i === undefined || this.kind === undefined) {
+          throw new TypeError('Not an ArrayIterator');
+        }
+        if (array!==undefined) {
+          var len = ES.ToLength(array.length);
+          for (; i < len; i++) {
+            var kind = this.kind;
+            var retval;
+            if (kind === "key") {
+              retval = i;
+            } else if (kind === "value") {
+              retval = array[i];
+            } else if (kind === "entry") {
+              retval = [i, array[i]];
+            }
+            this.i = i + 1;
+            return { value: retval, done: false };
+          }
+        }
+        this.array = undefined;
+        return { value: undefined, done: true };
+      }
+    });
+    addIterator(ArrayIterator.prototype);
+
+    defineProperties(Array.prototype, {
+      copyWithin: function(target, start) {
+        var end = arguments[2]; // copyWithin.length must be 2
+        var o = ES.ToObject(this);
+        var len = ES.ToLength(o.length);
+        target = ES.ToInteger(target);
+        start = ES.ToInteger(start);
+        var to = target < 0 ? Math.max(len + target, 0) : Math.min(target, len);
+        var from = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+        end = (end===undefined) ? len : ES.ToInteger(end);
+        var fin = end < 0 ? Math.max(len + end, 0) : Math.min(end, len);
+        var count = Math.min(fin - from, len - to);
+        var direction = 1;
+        if (from < to && to < (from + count)) {
+          direction = -1;
+          from += count - 1;
+          to += count - 1;
+        }
+        while (count > 0) {
+          if (_hasOwnProperty.call(o, from)) {
+            o[to] = o[from];
+          } else {
+            delete o[from];
+          }
+          from += direction;
+          to += direction;
+          count -= 1;
+        }
+        return o;
+      },
+
+      fill: function(value) {
+        var start = arguments.length > 1 ? arguments[1] : undefined;
+        var end = arguments.length > 2 ? arguments[2] : undefined;
+        var O = ES.ToObject(this);
+        var len = ES.ToLength(O.length);
+        start = ES.ToInteger(start === undefined ? 0 : start);
+        end = ES.ToInteger(end === undefined ? len : end);
+
+        var relativeStart = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+        var relativeEnd = end < 0 ? len + end : end;
+
+        for (var i = relativeStart; i < len && i < relativeEnd; ++i) {
+          O[i] = value;
+        }
+        return O;
+      },
+
+      find: function(predicate) {
+        var list = ES.ToObject(this);
+        var length = ES.ToLength(list.length);
+        if (!ES.IsCallable(predicate)) {
+          throw new TypeError('Array#find: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0, value; i < length; i++) {
+          if (i in list) {
+            value = list[i];
+            if (predicate.call(thisArg, value, i, list)) return value;
+          }
+        }
+        return undefined;
+      },
+
+      findIndex: function(predicate) {
+        var list = ES.ToObject(this);
+        var length = ES.ToLength(list.length);
+        if (!ES.IsCallable(predicate)) {
+          throw new TypeError('Array#findIndex: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0; i < length; i++) {
+          if (i in list) {
+            if (predicate.call(thisArg, list[i], i, list)) return i;
+          }
+        }
+        return -1;
+      },
+
+      keys: function() {
+        return new ArrayIterator(this, "key");
+      },
+
+      values: function() {
+        return new ArrayIterator(this, "value");
+      },
+
+      entries: function() {
+        return new ArrayIterator(this, "entry");
+      }
+    });
+    addIterator(Array.prototype, function() { return this.values(); });
+    // Chrome defines keys/values/entries on Array, but doesn't give us
+    // any way to identify its iterator.  So add our own shimmed field.
+    if (Object.getPrototypeOf) {
+      addIterator(Object.getPrototypeOf([].values()));
+    }
+
+    var maxSafeInteger = Math.pow(2, 53) - 1;
+    defineProperties(Number, {
+      MAX_SAFE_INTEGER: maxSafeInteger,
+      MIN_SAFE_INTEGER: -maxSafeInteger,
+      EPSILON: 2.220446049250313e-16,
+
+      parseInt: globals.parseInt,
+      parseFloat: globals.parseFloat,
+
+      isFinite: function(value) {
+        return typeof value === 'number' && global_isFinite(value);
+      },
+
+      isInteger: function(value) {
+        return Number.isFinite(value) &&
+          ES.ToInteger(value) === value;
+      },
+
+      isSafeInteger: function(value) {
+        return Number.isInteger(value) && Math.abs(value) <= Number.MAX_SAFE_INTEGER;
+      },
+
+      isNaN: function(value) {
+        // NaN !== NaN, but they are identical.
+        // NaNs are the only non-reflexive value, i.e., if x !== x,
+        // then x is NaN.
+        // isNaN is broken: it converts its argument to number, so
+        // isNaN('foo') => true
+        return value !== value;
+      }
+
+    });
+
+    if (supportsDescriptors) {
+      defineProperties(Object, {
+        getPropertyDescriptor: function(subject, name) {
+          var pd = Object.getOwnPropertyDescriptor(subject, name);
+          var proto = Object.getPrototypeOf(subject);
+          while (pd === undefined && proto !== null) {
+            pd = Object.getOwnPropertyDescriptor(proto, name);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return pd;
+        },
+
+        getPropertyNames: function(subject) {
+          var result = Object.getOwnPropertyNames(subject);
+          var proto = Object.getPrototypeOf(subject);
+
+          var addProperty = function(property) {
+            if (result.indexOf(property) === -1) {
+              result.push(property);
+            }
+          };
+
+          while (proto !== null) {
+            Object.getOwnPropertyNames(proto).forEach(addProperty);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return result;
+        }
+      });
+
+      defineProperties(Object, {
+        // 19.1.3.1
+        assign: function(target, source) {
+          if (!ES.TypeIsObject(target)) {
+            throw new TypeError('target must be an object');
+          }
+          return Array.prototype.reduce.call(arguments, function(target, source) {
+            return Object.keys(Object(source)).reduce(function(target, key) {
+              target[key] = source[key];
+              return target;
+            }, target);
+          });
+        },
+
+        is: function(a, b) {
+          return ES.SameValue(a, b);
+        },
+
+        // 19.1.3.9
+        // shim from https://gist.github.com/WebReflection/5593554
+        setPrototypeOf: (function(Object, magic) {
+          var set;
+
+          var checkArgs = function(O, proto) {
+            if (!ES.TypeIsObject(O)) {
+              throw new TypeError('cannot set prototype on a non-object');
+            }
+            if (!(proto===null || ES.TypeIsObject(proto))) {
+              throw new TypeError('can only set prototype to an object or null'+proto);
+            }
+          };
+
+          var setPrototypeOf = function(O, proto) {
+            checkArgs(O, proto);
+            set.call(O, proto);
+            return O;
+          };
+
+          try {
+            // this works already in Firefox and Safari
+            set = Object.getOwnPropertyDescriptor(Object.prototype, magic).set;
+            set.call({}, null);
+          } catch (e) {
+            if (Object.prototype !== {}[magic]) {
+              // IE < 11 cannot be shimmed
+              return;
+            }
+            // probably Chrome or some old Mobile stock browser
+            set = function(proto) {
+              this[magic] = proto;
+            };
+            // please note that this will **not** work
+            // in those browsers that do not inherit
+            // __proto__ by mistake from Object.prototype
+            // in these cases we should probably throw an error
+            // or at least be informed about the issue
+            setPrototypeOf.polyfill = setPrototypeOf(
+              setPrototypeOf({}, null),
+              Object.prototype
+            ) instanceof Object;
+            // setPrototypeOf.polyfill === true means it works as meant
+            // setPrototypeOf.polyfill === false means it's not 100% reliable
+            // setPrototypeOf.polyfill === undefined
+            // or
+            // setPrototypeOf.polyfill ==  null means it's not a polyfill
+            // which means it works as expected
+            // we can even delete Object.prototype.__proto__;
+          }
+          return setPrototypeOf;
+        })(Object, '__proto__')
+      });
+    }
+
+    // Workaround bug in Opera 12 where setPrototypeOf(x, null) doesn't work,
+    // but Object.create(null) does.
+    if (Object.setPrototypeOf && Object.getPrototypeOf &&
+        Object.getPrototypeOf(Object.setPrototypeOf({}, null)) !== null &&
+        Object.getPrototypeOf(Object.create(null)) === null) {
+      (function() {
+        var FAKENULL = Object.create(null);
+        var gpo = Object.getPrototypeOf, spo = Object.setPrototypeOf;
+        Object.getPrototypeOf = function(o) {
+          var result = gpo(o);
+          return result === FAKENULL ? null : result;
+        };
+        Object.setPrototypeOf = function(o, p) {
+          if (p === null) { p = FAKENULL; }
+          return spo(o, p);
+        };
+        Object.setPrototypeOf.polyfill = false;
+      })();
+    }
+
+    try {
+      Object.keys('foo');
+    } catch (e) {
+      var originalObjectKeys = Object.keys;
+      Object.keys = function (obj) {
+        return originalObjectKeys(ES.ToObject(obj));
+      };
+    }
+
+    var MathShims = {
+      acosh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < 1) return NaN;
+        if (value === 1) return 0;
+        if (value === Infinity) return value;
+        return Math.log(value + Math.sqrt(value * value - 1));
+      },
+
+      asinh: function(value) {
+        value = Number(value);
+        if (value === 0 || !global_isFinite(value)) {
+          return value;
+        }
+        return value < 0 ? -Math.asinh(-value) : Math.log(value + Math.sqrt(value * value + 1));
+      },
+
+      atanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < -1 || value > 1) {
+          return NaN;
+        }
+        if (value === -1) return -Infinity;
+        if (value === 1) return Infinity;
+        if (value === 0) return value;
+        return 0.5 * Math.log((1 + value) / (1 - value));
+      },
+
+      cbrt: function(value) {
+        value = Number(value);
+        if (value === 0) return value;
+        var negate = value < 0, result;
+        if (negate) value = -value;
+        result = Math.pow(value, 1/3);
+        return negate ? -result : result;
+      },
+
+      clz32: function(value) {
+        // See https://bugs.ecmascript.org/show_bug.cgi?id=2465
+        value = Number(value);
+        var number = ES.ToUint32(value);
+        if (number === 0) {
+          return 32;
+        }
+        return 32 - (number).toString(2).length;
+      },
+
+      cosh: function(value) {
+        value = Number(value);
+        if (value === 0) return 1; // +0 or -0
+        if (Number.isNaN(value)) return NaN;
+        if (!global_isFinite(value)) return Infinity;
+        if (value < 0) value = -value;
+        if (value > 21) return Math.exp(value) / 2;
+        return (Math.exp(value) + Math.exp(-value)) / 2;
+      },
+
+      expm1: function(value) {
+        value = Number(value);
+        if (value === -Infinity) return -1;
+        if (!global_isFinite(value) || value === 0) return value;
+        return Math.exp(value) - 1;
+      },
+
+      hypot: function(x, y) {
+        var anyNaN = false;
+        var allZero = true;
+        var anyInfinity = false;
+        var numbers = [];
+        Array.prototype.every.call(arguments, function(arg) {
+          var num = Number(arg);
+          if (Number.isNaN(num)) anyNaN = true;
+          else if (num === Infinity || num === -Infinity) anyInfinity = true;
+          else if (num !== 0) allZero = false;
+          if (anyInfinity) {
+            return false;
+          } else if (!anyNaN) {
+            numbers.push(Math.abs(num));
+          }
+          return true;
+        });
+        if (anyInfinity) return Infinity;
+        if (anyNaN) return NaN;
+        if (allZero) return 0;
+
+        numbers.sort(function (a, b) { return b - a; });
+        var largest = numbers[0];
+        var divided = numbers.map(function (number) { return number / largest; });
+        var sum = divided.reduce(function (sum, number) { return sum += number * number; }, 0);
+        return largest * Math.sqrt(sum);
+      },
+
+      log2: function(value) {
+        return Math.log(value) * Math.LOG2E;
+      },
+
+      log10: function(value) {
+        return Math.log(value) * Math.LOG10E;
+      },
+
+      log1p: function(value) {
+        value = Number(value);
+        if (value < -1 || Number.isNaN(value)) return NaN;
+        if (value === 0 || value === Infinity) return value;
+        if (value === -1) return -Infinity;
+        var result = 0;
+        var n = 50;
+
+        if (value < 0 || value > 1) return Math.log(1 + value);
+        for (var i = 1; i < n; i++) {
+          if ((i % 2) === 0) {
+            result -= Math.pow(value, i) / i;
+          } else {
+            result += Math.pow(value, i) / i;
+          }
+        }
+
+        return result;
+      },
+
+      sign: function(value) {
+        var number = +value;
+        if (number === 0) return number;
+        if (Number.isNaN(number)) return number;
+        return number < 0 ? -1 : 1;
+      },
+
+      sinh: function(value) {
+        value = Number(value);
+        if (!global_isFinite(value) || value === 0) return value;
+        return (Math.exp(value) - Math.exp(-value)) / 2;
+      },
+
+      tanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value === 0) return value;
+        if (value === Infinity) return 1;
+        if (value === -Infinity) return -1;
+        return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+      },
+
+      trunc: function(value) {
+        var number = Number(value);
+        return number < 0 ? -Math.floor(-number) : Math.floor(number);
+      },
+
+      imul: function(x, y) {
+        // taken from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
+        x = ES.ToUint32(x);
+        y = ES.ToUint32(y);
+        var ah  = (x >>> 16) & 0xffff;
+        var al = x & 0xffff;
+        var bh  = (y >>> 16) & 0xffff;
+        var bl = y & 0xffff;
+        // the shift by 0 fixes the sign on the high part
+        // the final |0 converts the unsigned value into a signed value
+        return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);
+      },
+
+      fround: function(x) {
+        if (x === 0 || x === Infinity || x === -Infinity || Number.isNaN(x)) {
+          return x;
+        }
+        var num = Number(x);
+        return numberConversion.toFloat32(num);
+      }
+    };
+    defineProperties(Math, MathShims);
+
+    if (Math.imul(0xffffffff, 5) !== -5) {
+      // Safari 6.1, at least, reports "0" for this value
+      Math.imul = MathShims.imul;
+    }
+
+    // Promises
+    // Simplest possible implementation; use a 3rd-party library if you
+    // want the best possible speed and/or long stack traces.
+    var PromiseShim = (function() {
+
+      var Promise, Promise$prototype;
+
+      ES.IsPromise = function(promise) {
+        if (!ES.TypeIsObject(promise)) {
+          return false;
+        }
+        if (!promise._promiseConstructor) {
+          // _promiseConstructor is a bit more unique than _status, so we'll
+          // check that instead of the [[PromiseStatus]] internal field.
+          return false;
+        }
+        if (promise._status === undefined) {
+          return false; // uninitialized
+        }
+        return true;
+      };
+
+      // "PromiseCapability" in the spec is what most promise implementations
+      // call a "deferred".
+      var PromiseCapability = function(C) {
+        if (!ES.IsCallable(C)) {
+          throw new TypeError('bad promise constructor');
+        }
+        var capability = this;
+        var resolver = function(resolve, reject) {
+          capability.resolve = resolve;
+          capability.reject = reject;
+        };
+        capability.promise = ES.Construct(C, [resolver]);
+        // see https://bugs.ecmascript.org/show_bug.cgi?id=2478
+        if (!capability.promise._es6construct) {
+          throw new TypeError('bad promise constructor');
+        }
+        if (!(ES.IsCallable(capability.resolve) &&
+              ES.IsCallable(capability.reject))) {
+          throw new TypeError('bad promise constructor');
+        }
+      };
+
+      // find an appropriate setImmediate-alike
+      var setTimeout = globals.setTimeout;
+      var makeZeroTimeout;
+      if (typeof window !== 'undefined' && ES.IsCallable(window.postMessage)) {
+        makeZeroTimeout = function() {
+          // from http://dbaron.org/log/20100309-faster-timeouts
+          var timeouts = [];
+          var messageName = "zero-timeout-message";
+          var setZeroTimeout = function(fn) {
+            timeouts.push(fn);
+            window.postMessage(messageName, "*");
+          };
+          var handleMessage = function(event) {
+            if (event.source == window && event.data == messageName) {
+              event.stopPropagation();
+              if (timeouts.length === 0) { return; }
+              var fn = timeouts.shift();
+              fn();
+            }
+          };
+          window.addEventListener("message", handleMessage, true);
+          return setZeroTimeout;
+        };
+      }
+      var makePromiseAsap = function() {
+        // An efficient task-scheduler based on a pre-existing Promise
+        // implementation, which we can use even if we override the
+        // global Promise below (in order to workaround bugs)
+        // https://github.com/Raynos/observ-hash/issues/2#issuecomment-35857671
+        var P = globals.Promise;
+        return P && P.resolve && function(task) {
+          return P.resolve().then(task);
+        };
+      };
+      var enqueue = ES.IsCallable(globals.setImmediate) ?
+        globals.setImmediate.bind(globals) :
+        typeof process === 'object' && process.nextTick ? process.nextTick :
+        makePromiseAsap() ||
+        (ES.IsCallable(makeZeroTimeout) ? makeZeroTimeout() :
+        function(task) { setTimeout(task, 0); }); // fallback
+
+      var triggerPromiseReactions = function(reactions, x) {
+        reactions.forEach(function(reaction) {
+          enqueue(function() {
+            // PromiseReactionTask
+            var handler = reaction.handler;
+            var capability = reaction.capability;
+            var resolve = capability.resolve;
+            var reject = capability.reject;
+            try {
+              var result = handler(x);
+              if (result === capability.promise) {
+                throw new TypeError('self resolution');
+              }
+              var updateResult =
+                updatePromiseFromPotentialThenable(result, capability);
+              if (!updateResult) {
+                resolve(result);
+              }
+            } catch (e) {
+              reject(e);
+            }
+          });
+        });
+      };
+
+      var updatePromiseFromPotentialThenable = function(x, capability) {
+        if (!ES.TypeIsObject(x)) {
+          return false;
+        }
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          var then = x.then; // only one invocation of accessor
+          if (!ES.IsCallable(then)) { return false; }
+          then.call(x, resolve, reject);
+        } catch(e) {
+          reject(e);
+        }
+        return true;
+      };
+
+      var promiseResolutionHandler = function(promise, onFulfilled, onRejected){
+        return function(x) {
+          if (x === promise) {
+            return onRejected(new TypeError('self resolution'));
+          }
+          var C = promise._promiseConstructor;
+          var capability = new PromiseCapability(C);
+          var updateResult = updatePromiseFromPotentialThenable(x, capability);
+          if (updateResult) {
+            return capability.promise.then(onFulfilled, onRejected);
+          } else {
+            return onFulfilled(x);
+          }
+        };
+      };
+
+      Promise = function(resolver) {
+        var promise = this;
+        promise = emulateES6construct(promise);
+        if (!promise._promiseConstructor) {
+          // we use _promiseConstructor as a stand-in for the internal
+          // [[PromiseStatus]] field; it's a little more unique.
+          throw new TypeError('bad promise');
+        }
+        if (promise._status !== undefined) {
+          throw new TypeError('promise already initialized');
+        }
+        // see https://bugs.ecmascript.org/show_bug.cgi?id=2482
+        if (!ES.IsCallable(resolver)) {
+          throw new TypeError('not a valid resolver');
+        }
+        promise._status = 'unresolved';
+        promise._resolveReactions = [];
+        promise._rejectReactions = [];
+
+        var resolve = function(resolution) {
+          if (promise._status !== 'unresolved') { return; }
+          var reactions = promise._resolveReactions;
+          promise._result = resolution;
+          promise._resolveReactions = undefined;
+          promise._rejectReactions = undefined;
+          promise._status = 'has-resolution';
+          triggerPromiseReactions(reactions, resolution);
+        };
+        var reject = function(reason) {
+          if (promise._status !== 'unresolved') { return; }
+          var reactions = promise._rejectReactions;
+          promise._result = reason;
+          promise._resolveReactions = undefined;
+          promise._rejectReactions = undefined;
+          promise._status = 'has-rejection';
+          triggerPromiseReactions(reactions, reason);
+        };
+        try {
+          resolver(resolve, reject);
+        } catch (e) {
+          reject(e);
+        }
+        return promise;
+      };
+      Promise$prototype = Promise.prototype;
+      defineProperties(Promise, {
+        '@@create': function(obj) {
+          var constructor = this;
+          // AllocatePromise
+          // The `obj` parameter is a hack we use for es5
+          // compatibility.
+          var prototype = constructor.prototype || Promise$prototype;
+          obj = obj || create(prototype);
+          defineProperties(obj, {
+            _status: undefined,
+            _result: undefined,
+            _resolveReactions: undefined,
+            _rejectReactions: undefined,
+            _promiseConstructor: undefined
+          });
+          obj._promiseConstructor = constructor;
+          return obj;
+        }
+      });
+
+      var _promiseAllResolver = function(index, values, capability, remaining) {
+        var done = false;
+        return function(x) {
+          if (done) { return; } // protect against being called multiple times
+          done = true;
+          values[index] = x;
+          if ((--remaining.count) === 0) {
+            var resolve = capability.resolve;
+            resolve(values); // call w/ this===undefined
+          }
+        };
+      };
+
+      Promise.all = function(iterable) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          if (!ES.IsIterable(iterable)) {
+            throw new TypeError('bad iterable');
+          }
+          var it = ES.GetIterator(iterable);
+          var values = [], remaining = { count: 1 };
+          for (var index = 0; ; index++) {
+            var next = ES.IteratorNext(it);
+            if (next.done) {
+              break;
+            }
+            var nextPromise = C.resolve(next.value);
+            var resolveElement = _promiseAllResolver(
+              index, values, capability, remaining
+            );
+            remaining.count++;
+            nextPromise.then(resolveElement, capability.reject);
+          }
+          if ((--remaining.count) === 0) {
+            resolve(values); // call w/ this===undefined
+          }
+        } catch (e) {
+          reject(e);
+        }
+        return capability.promise;
+      };
+
+      Promise.race = function(iterable) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          if (!ES.IsIterable(iterable)) {
+            throw new TypeError('bad iterable');
+          }
+          var it = ES.GetIterator(iterable);
+          while (true) {
+            var next = ES.IteratorNext(it);
+            if (next.done) {
+              // If iterable has no items, resulting promise will never
+              // resolve; see:
+              // https://github.com/domenic/promises-unwrapping/issues/75
+              // https://bugs.ecmascript.org/show_bug.cgi?id=2515
+              break;
+            }
+            var nextPromise = C.resolve(next.value);
+            nextPromise.then(resolve, reject);
+          }
+        } catch (e) {
+          reject(e);
+        }
+        return capability.promise;
+      };
+
+      Promise.reject = function(reason) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var reject = capability.reject;
+        reject(reason); // call with this===undefined
+        return capability.promise;
+      };
+
+      Promise.resolve = function(v) {
+        var C = this;
+        if (ES.IsPromise(v)) {
+          var constructor = v._promiseConstructor;
+          if (constructor === C) { return v; }
+        }
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        resolve(v); // call with this===undefined
+        return capability.promise;
+      };
+
+      Promise.prototype['catch'] = function( onRejected ) {
+        return this.then(undefined, onRejected);
+      };
+
+      Promise.prototype.then = function( onFulfilled, onRejected ) {
+        var promise = this;
+        if (!ES.IsPromise(promise)) { throw new TypeError('not a promise'); }
+        // this.constructor not this._promiseConstructor; see
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2513
+        var C = this.constructor;
+        var capability = new PromiseCapability(C);
+        if (!ES.IsCallable(onRejected)) {
+          onRejected = function(e) { throw e; };
+        }
+        if (!ES.IsCallable(onFulfilled)) {
+          onFulfilled = function(x) { return x; };
+        }
+        var resolutionHandler =
+          promiseResolutionHandler(promise, onFulfilled, onRejected);
+        var resolveReaction =
+          { capability: capability, handler: resolutionHandler };
+        var rejectReaction =
+          { capability: capability, handler: onRejected };
+        switch (promise._status) {
+        case 'unresolved':
+          promise._resolveReactions.push(resolveReaction);
+          promise._rejectReactions.push(rejectReaction);
+          break;
+        case 'has-resolution':
+          triggerPromiseReactions([resolveReaction], promise._result);
+          break;
+        case 'has-rejection':
+          triggerPromiseReactions([rejectReaction], promise._result);
+          break;
+        default:
+          throw new TypeError('unexpected');
+        }
+        return capability.promise;
+      };
+
+      return Promise;
+    })();
+    // export the Promise constructor.
+    defineProperties(globals, { Promise: PromiseShim });
+    // In Chrome 33 (and thereabouts) Promise is defined, but the
+    // implementation is buggy in a number of ways.  Let's check subclassing
+    // support to see if we have a buggy implementation.
+    var promiseSupportsSubclassing = supportsSubclassing(globals.Promise, function(S) {
+      return S.resolve(42) instanceof S;
+    });
+    var promiseIgnoresNonFunctionThenCallbacks = (function () {
+      try {
+        globals.Promise.reject(42).then(null, 5).then(null, function () {});
+        return true;
+      } catch (ex) {
+        return false;
+      }
+    }());
+    if (!promiseSupportsSubclassing || !promiseIgnoresNonFunctionThenCallbacks) {
+      globals.Promise = PromiseShim;
+    }
+
+    // Map and Set require a true ES5 environment
+    if (supportsDescriptors) {
+
+      var fastkey = function fastkey(key) {
+        var type = typeof key;
+        if (type === 'string') {
+          return '$' + key;
+        } else if (type === 'number') {
+          // note that -0 will get coerced to "0" when used as a property key
+          return key;
+        }
+        return null;
+      };
+
+      var emptyObject = function emptyObject() {
+        // accomodate some older not-quite-ES5 browsers
+        return Object.create ? Object.create(null) : {};
+      };
+
+      var collectionShims = {
+        Map: (function() {
+
+          var empty = {};
+
+          function MapEntry(key, value) {
+            this.key = key;
+            this.value = value;
+            this.next = null;
+            this.prev = null;
+          }
+
+          MapEntry.prototype.isRemoved = function() {
+            return this.key === empty;
+          };
+
+          function MapIterator(map, kind) {
+            this.head = map._head;
+            this.i = this.head;
+            this.kind = kind;
+          }
+
+          MapIterator.prototype = {
+            next: function() {
+              var i = this.i, kind = this.kind, head = this.head, result;
+              if (this.i === undefined) {
+                return { value: undefined, done: true };
+              }
+              while (i.isRemoved() && i !== head) {
+                // back up off of removed entries
+                i = i.prev;
+              }
+              // advance to next unreturned element.
+              while (i.next !== head) {
+                i = i.next;
+                if (!i.isRemoved()) {
+                  if (kind === "key") {
+                    result = i.key;
+                  } else if (kind === "value") {
+                    result = i.value;
+                  } else {
+                    result = [i.key, i.value];
+                  }
+                  this.i = i;
+                  return { value: result, done: false };
+                }
+              }
+              // once the iterator is done, it is done forever.
+              this.i = undefined;
+              return { value: undefined, done: true };
+            }
+          };
+          addIterator(MapIterator.prototype);
+
+          function Map(iterable) {
+            var map = this;
+            map = emulateES6construct(map);
+            if (!map._es6map) {
+              throw new TypeError('bad map');
+            }
+
+            var head = new MapEntry(null, null);
+            // circular doubly-linked list.
+            head.next = head.prev = head;
+
+            defineProperties(map, {
+              '_head': head,
+              '_storage': emptyObject(),
+              '_size': 0
+            });
+
+            // Optionally initialize map from iterable
+            if (iterable !== undefined && iterable !== null) {
+              var it = ES.GetIterator(iterable);
+              var adder = map.set;
+              if (!ES.IsCallable(adder)) { throw new TypeError('bad map'); }
+              while (true) {
+                var next = ES.IteratorNext(it);
+                if (next.done) { break; }
+                var nextItem = next.value;
+                if (!ES.TypeIsObject(nextItem)) {
+                  throw new TypeError('expected iterable of pairs');
+                }
+                adder.call(map, nextItem[0], nextItem[1]);
+              }
+            }
+            return map;
+          }
+          var Map$prototype = Map.prototype;
+          defineProperties(Map, {
+            '@@create': function(obj) {
+              var constructor = this;
+              var prototype = constructor.prototype || Map$prototype;
+              obj = obj || create(prototype);
+              defineProperties(obj, { _es6map: true });
+              return obj;
+            }
+          });
+
+          Object.defineProperty(Map.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._size === 'undefined') {
+                throw new TypeError('size method called on incompatible Map');
+              }
+              return this._size;
+            }
+          });
+
+          defineProperties(Map.prototype, {
+            get: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                var entry = this._storage[fkey];
+                return entry ? entry.value : undefined;
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return i.value;
+                }
+              }
+              return undefined;
+            },
+
+            has: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                return typeof this._storage[fkey] !== 'undefined';
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            set: function(key, value) {
+              var head = this._head, i = head, entry;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] !== 'undefined') {
+                  this._storage[fkey].value = value;
+                  return;
+                } else {
+                  entry = this._storage[fkey] = new MapEntry(key, value);
+                  i = head.prev;
+                  // fall through
+                }
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.value = value;
+                  return;
+                }
+              }
+              entry = entry || new MapEntry(key, value);
+              if (ES.SameValue(-0, key)) {
+                entry.key = +0; // coerce -0 to +0 in entry
+              }
+              entry.next = this._head;
+              entry.prev = this._head.prev;
+              entry.prev.next = entry;
+              entry.next.prev = entry;
+              this._size += 1;
+            },
+
+            'delete': function(key) {
+              var head = this._head, i = head;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] === 'undefined') {
+                  return false;
+                }
+                i = this._storage[fkey].prev;
+                delete this._storage[fkey];
+                // fall through
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.key = i.value = empty;
+                  i.prev.next = i.next;
+                  i.next.prev = i.prev;
+                  this._size -= 1;
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            clear: function() {
+              this._size = 0;
+              this._storage = emptyObject();
+              var head = this._head, i = head, p = i.next;
+              while ((i = p) !== head) {
+                i.key = i.value = empty;
+                p = i.next;
+                i.next = i.prev = head;
+              }
+              head.next = head.prev = head;
+            },
+
+            keys: function() {
+              return new MapIterator(this, "key");
+            },
+
+            values: function() {
+              return new MapIterator(this, "value");
+            },
+
+            entries: function() {
+              return new MapIterator(this, "key+value");
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var it = this.entries();
+              for (var entry = it.next(); !entry.done; entry = it.next()) {
+                callback.call(context, entry.value[1], entry.value[0], this);
+              }
+            }
+          });
+          addIterator(Map.prototype, function() { return this.entries(); });
+
+          return Map;
+        })(),
+
+        Set: (function() {
+          // Creating a Map is expensive.  To speed up the common case of
+          // Sets containing only string or numeric keys, we use an object
+          // as backing storage and lazily create a full Map only when
+          // required.
+          var SetShim = function Set(iterable) {
+            var set = this;
+            set = emulateES6construct(set);
+            if (!set._es6set) {
+              throw new TypeError('bad set');
+            }
+
+            defineProperties(set, {
+              '[[SetData]]': null,
+              '_storage': emptyObject()
+            });
+
+            // Optionally initialize map from iterable
+            if (iterable !== undefined && iterable !== null) {
+              var it = ES.GetIterator(iterable);
+              var adder = set.add;
+              if (!ES.IsCallable(adder)) { throw new TypeError('bad set'); }
+              while (true) {
+                var next = ES.IteratorNext(it);
+                if (next.done) { break; }
+                var nextItem = next.value;
+                adder.call(set, nextItem);
+              }
+            }
+            return set;
+          };
+          var Set$prototype = SetShim.prototype;
+          defineProperties(SetShim, {
+            '@@create': function(obj) {
+              var constructor = this;
+              var prototype = constructor.prototype || Set$prototype;
+              obj = obj || create(prototype);
+              defineProperties(obj, { _es6set: true });
+              return obj;
+            }
+          });
+
+          // Switch from the object backing storage to a full Map.
+          var ensureMap = function ensureMap(set) {
+            if (!set['[[SetData]]']) {
+              var m = set['[[SetData]]'] = new collectionShims.Map();
+              Object.keys(set._storage).forEach(function(k) {
+                // fast check for leading '$'
+                if (k.charCodeAt(0) === 36) {
+                  k = k.slice(1);
+                } else {
+                  k = +k;
+                }
+                m.set(k, k);
+              });
+              set._storage = null; // free old backing storage
+            }
+          };
+
+          Object.defineProperty(SetShim.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._storage === 'undefined') {
+                // https://github.com/paulmillr/es6-shim/issues/176
+                throw new TypeError('size method called on incompatible Set');
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].size;
+            }
+          });
+
+          defineProperties(SetShim.prototype, {
+            has: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                return !!this._storage[fkey];
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].has(key);
+            },
+
+            add: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                this._storage[fkey]=true;
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].set(key, key);
+            },
+
+            'delete': function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                delete this._storage[fkey];
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]']['delete'](key);
+            },
+
+            clear: function() {
+              if (this._storage) {
+                this._storage = emptyObject();
+                return;
+              }
+              return this['[[SetData]]'].clear();
+            },
+
+            keys: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].keys();
+            },
+
+            values: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].values();
+            },
+
+            entries: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].entries();
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var entireSet = this;
+              ensureMap(this);
+              this['[[SetData]]'].forEach(function(value, key) {
+                callback.call(context, key, key, entireSet);
+              });
+            }
+          });
+          addIterator(SetShim.prototype, function() { return this.values(); });
+
+          return SetShim;
+        })()
+      };
+      defineProperties(globals, collectionShims);
+
+      if (globals.Map || globals.Set) {
+        /*
+          - In Firefox < 23, Map#size is a function.
+          - In all current Firefox, Set#entries/keys/values & Map#clear do not exist
+          - https://bugzilla.mozilla.org/show_bug.cgi?id=869996
+          - In Firefox 24, Map and Set do not implement forEach
+          - In Firefox 25 at least, Map and Set are callable without "new"
+        */
+        if (
+          typeof globals.Map.prototype.clear !== 'function' ||
+          new globals.Set().size !== 0 ||
+          new globals.Map().size !== 0 ||
+          typeof globals.Map.prototype.keys !== 'function' ||
+          typeof globals.Set.prototype.keys !== 'function' ||
+          typeof globals.Map.prototype.forEach !== 'function' ||
+          typeof globals.Set.prototype.forEach !== 'function' ||
+          isCallableWithoutNew(globals.Map) ||
+          isCallableWithoutNew(globals.Set) ||
+          !supportsSubclassing(globals.Map, function(M) {
+            return (new M([])) instanceof M;
+          })
+        ) {
+          globals.Map = collectionShims.Map;
+          globals.Set = collectionShims.Set;
+        }
+      }
+      // Shim incomplete iterator implementations.
+      addIterator(Object.getPrototypeOf((new globals.Map()).keys()));
+      addIterator(Object.getPrototypeOf((new globals.Set()).keys()));
+    }
+  };
+
+  if (typeof define === 'function' && define.amd) {
+    define(main); // RequireJS
+  } else {
+    main(); // CommonJS and <script>
+  }
+})();
+
diff --git a/ajax/libs/es6-shim/0.15.1/es6-shim.map b/ajax/libs/es6-shim/0.15.1/es6-shim.map
new file mode 100644
index 000000000..5d0d83e4a
--- /dev/null
+++ b/ajax/libs/es6-shim/0.15.1/es6-shim.map
@@ -0,0 +1 @@
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new file mode 100644
index 000000000..18f030387
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n(this,"key")},values:function(){return new n(this,"value")},entries:function(){return new n(this,"key+value")},forEach:function(e){var t=arguments.length>1?arguments[1]:null;var r=this.entries();for(var n=r.next();!n.done;n=r.next()){e.call(t,n.value[1],n.value[0],this)}}});m(a.prototype,function(){return this.entries()});return a}(),Set:function(){var t=function a(t){var r=this;r=d(r);if(!r._es6set){throw new TypeError("bad set")}y(r,{"[[SetData]]":null,_storage:D()});if(t!==e&&t!==null){var n=j.GetIterator(t);var a=r.add;if(!j.IsCallable(a)){throw new TypeError("bad set")}while(true){var i=j.IteratorNext(n);if(i.done){break}var o=i.value;a.call(r,o)}}return r};var r=t.prototype;y(t,{"@@create":function(e){var t=this;var n=t.prototype||r;e=e||b(n);y(e,{_es6set:true});return e}});var n=function i(e){if(!e["[[SetData]]"]){var t=e["[[SetData]]"]=new G.Map;Object.keys(e._storage).forEach(function(e){if(e.charCodeAt(0)===36){e=e.slice(1)}else{e=+e}t.set(e,e)});e._storage=null}};Object.defineProperty(t.prototype,"size",{configurable:true,enumerable:false,get:function(){if(typeof this._storage==="undefined"){throw new TypeError("size method called on incompatible Set")}n(this);return this["[[SetData]]"].size}});y(t.prototype,{has:function(e){var t;if(this._storage&&(t=z(e))!==null){return!!this._storage[t]}n(this);return this["[[SetData]]"].has(e)},add:function(e){var t;if(this._storage&&(t=z(e))!==null){this._storage[t]=true;return}n(this);return this["[[SetData]]"].set(e,e)},"delete":function(e){var t;if(this._storage&&(t=z(e))!==null){delete this._storage[t];return}n(this);return this["[[SetData]]"]["delete"](e)},clear:function(){if(this._storage){this._storage=D();return}return this["[[SetData]]"].clear()},keys:function(){n(this);return this["[[SetData]]"].keys()},values:function(){n(this);return this["[[SetData]]"].values()},entries:function(){n(this);return this["[[SetData]]"].entries()},forEach:function(e){var t=arguments.length>1?arguments[1]:null;var r=this;n(this);this["[[SetData]]"].forEach(function(n,a){e.call(t,a,a,r)})}});m(t.prototype,function(){return this.values()});return t}()};y(o,G);if(o.Map||o.Set){if(typeof o.Map.prototype.clear!=="function"||(new o.Set).size!==0||(new o.Map).size!==0||typeof o.Map.prototype.keys!=="function"||typeof o.Set.prototype.keys!=="function"||typeof o.Map.prototype.forEach!=="function"||typeof o.Set.prototype.forEach!=="function"||t(o.Map)||t(o.Set)||!r(o.Map,function(e){return new e([])instanceof e})){o.Map=G.Map;o.Set=G.Set}}m(Object.getPrototypeOf((new o.Map).keys()));m(Object.getPrototypeOf((new o.Set).keys()))}};if(typeof define==="function"&&define.amd){define(o)}else{o()}})();
+//# sourceMappingURL=es6-shim.map
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.16.0/es6-shim.js b/ajax/libs/es6-shim/0.16.0/es6-shim.js
new file mode 100644
index 000000000..6d2be7cad
--- /dev/null
+++ b/ajax/libs/es6-shim/0.16.0/es6-shim.js
@@ -0,0 +1,1877 @@
+// ES6-shim 0.16.0 (c) 2013-2014 Paul Miller (http://paulmillr.com)
+// ES6-shim may be freely distributed under the MIT license.
+// For more details and documentation:
+// https://github.com/paulmillr/es6-shim/
+
+(function(undefined) {
+  'use strict';
+
+  var isCallableWithoutNew = function(func) {
+    try { func(); }
+    catch (e) { return false; }
+    return true;
+  };
+
+  var supportsSubclassing = function(C, f) {
+    /* jshint proto:true */
+    try {
+      var Sub = function() { C.apply(this, arguments); };
+      if (!Sub.__proto__) { return false; /* skip test on IE < 11 */ }
+      Object.setPrototypeOf(Sub, C);
+      Sub.prototype = Object.create(C.prototype, {
+        constructor: { value: C }
+      });
+      return f(Sub);
+    } catch (e) {
+      return false;
+    }
+  };
+
+  var arePropertyDescriptorsSupported = function() {
+    try {
+      Object.defineProperty({}, 'x', {});
+      return true;
+    } catch (e) { /* this is IE 8. */
+      return false;
+    }
+  };
+
+  var startsWithRejectsRegex = function() {
+    var rejectsRegex = false;
+    if (String.prototype.startsWith) {
+      try {
+        '/a/'.startsWith(/a/);
+      } catch (e) { /* this is spec compliant */
+        rejectsRegex = true;
+      }
+    }
+    return rejectsRegex;
+  };
+
+  /*jshint evil: true */
+  var getGlobal = new Function('return this;');
+  /*jshint evil: false */
+
+  var main = function() {
+    var globals = getGlobal();
+    var global_isFinite = globals.isFinite;
+    var supportsDescriptors = !!Object.defineProperty && arePropertyDescriptorsSupported();
+    var startsWithIsCompliant = startsWithRejectsRegex();
+    var _slice = Array.prototype.slice;
+    var _indexOf = String.prototype.indexOf;
+    var _toString = Object.prototype.toString;
+    var _hasOwnProperty = Object.prototype.hasOwnProperty;
+    var ArrayIterator; // make our implementation private
+
+    // Define configurable, writable and non-enumerable props
+    // if they don’t exist.
+    var defineProperties = function(object, map) {
+      Object.keys(map).forEach(function(name) {
+        var method = map[name];
+        if (name in object) return;
+        if (supportsDescriptors) {
+          Object.defineProperty(object, name, {
+            configurable: true,
+            enumerable: false,
+            writable: true,
+            value: method
+          });
+        } else {
+          object[name] = method;
+        }
+      });
+    };
+
+    // Simple shim for Object.create on ES3 browsers
+    // (unlike real shim, no attempt to support `prototype === null`)
+    var create = Object.create || function(prototype, properties) {
+      function Type() {}
+      Type.prototype = prototype;
+      var object = new Type();
+      if (typeof properties !== "undefined") {
+        defineProperties(object, properties);
+      }
+      return object;
+    };
+
+    // This is a private name in the es6 spec, equal to '[Symbol.iterator]'
+    // we're going to use an arbitrary _-prefixed name to make our shims
+    // work properly with each other, even though we don't have full Iterator
+    // support.  That is, `Array.from(map.keys())` will work, but we don't
+    // pretend to export a "real" Iterator interface.
+    var $iterator$ = (typeof Symbol === 'function' && Symbol.iterator) ||
+      '_es6shim_iterator_';
+    // Firefox ships a partial implementation using the name @@iterator.
+    // https://bugzilla.mozilla.org/show_bug.cgi?id=907077#c14
+    // So use that name if we detect it.
+    if (globals.Set && typeof new globals.Set()['@@iterator'] === 'function') {
+      $iterator$ = '@@iterator';
+    }
+    var addIterator = function(prototype, impl) {
+      if (!impl) { impl = function iterator() { return this; }; }
+      var o = {};
+      o[$iterator$] = impl;
+      defineProperties(prototype, o);
+    };
+
+    // taken directly from https://github.com/ljharb/is-arguments/blob/master/index.js
+    // can be replaced with require('is-arguments') if we ever use a build process instead
+    var isArguments = function isArguments(value) {
+      var str = _toString.call(value);
+      var result = str === '[object Arguments]';
+      if (!result) {
+        result = str !== '[object Array]' &&
+          value !== null &&
+          typeof value === 'object' &&
+          typeof value.length === 'number' &&
+          value.length >= 0 &&
+          _toString.call(value.callee) === '[object Function]';
+      }
+      return result;
+    };
+
+    var emulateES6construct = function(o) {
+      if (!ES.TypeIsObject(o)) throw new TypeError('bad object');
+      // es5 approximation to es6 subclass semantics: in es6, 'new Foo'
+      // would invoke Foo.@@create to allocation/initialize the new object.
+      // In es5 we just get the plain object.  So if we detect an
+      // uninitialized object, invoke o.constructor.@@create
+      if (!o._es6construct) {
+        if (o.constructor && ES.IsCallable(o.constructor['@@create'])) {
+          o = o.constructor['@@create'](o);
+        }
+        defineProperties(o, { _es6construct: true });
+      }
+      return o;
+    };
+
+    var ES = {
+      CheckObjectCoercible: function(x, optMessage) {
+        /* jshint eqnull:true */
+        if (x == null)
+          throw new TypeError(optMessage || ('Cannot call method on ' + x));
+        return x;
+      },
+
+      TypeIsObject: function(x) {
+        /* jshint eqnull:true */
+        // this is expensive when it returns false; use this function
+        // when you expect it to return true in the common case.
+        return x != null && Object(x) === x;
+      },
+
+      ToObject: function(o, optMessage) {
+        return Object(ES.CheckObjectCoercible(o, optMessage));
+      },
+
+      IsCallable: function(x) {
+        return typeof x === 'function' &&
+          // some versions of IE say that typeof /abc/ === 'function'
+          _toString.call(x) === '[object Function]';
+      },
+
+      ToInt32: function(x) {
+        return x >> 0;
+      },
+
+      ToUint32: function(x) {
+        return x >>> 0;
+      },
+
+      ToInteger: function(value) {
+        var number = +value;
+        if (Number.isNaN(number)) return 0;
+        if (number === 0 || !Number.isFinite(number)) return number;
+        return Math.sign(number) * Math.floor(Math.abs(number));
+      },
+
+      ToLength: function(value) {
+        var len = ES.ToInteger(value);
+        if (len <= 0) return 0; // includes converting -0 to +0
+        if (len > Number.MAX_SAFE_INTEGER) return Number.MAX_SAFE_INTEGER;
+        return len;
+      },
+
+      SameValue: function(a, b) {
+        if (a === b) {
+          // 0 === -0, but they are not identical.
+          if (a === 0) return 1 / a === 1 / b;
+          return true;
+        }
+        return Number.isNaN(a) && Number.isNaN(b);
+      },
+
+      SameValueZero: function(a, b) {
+        // same as SameValue except for SameValueZero(+0, -0) == true
+        return (a === b) || (Number.isNaN(a) && Number.isNaN(b));
+      },
+
+      IsIterable: function(o) {
+        return ES.TypeIsObject(o) &&
+          (o[$iterator$] !== undefined || isArguments(o));
+      },
+
+      GetIterator: function(o) {
+        if (isArguments(o)) {
+          // special case support for `arguments`
+          return new ArrayIterator(o, "value");
+        }
+        var it = o[$iterator$]();
+        if (!ES.TypeIsObject(it)) {
+          throw new TypeError('bad iterator');
+        }
+        return it;
+      },
+
+      IteratorNext: function(it) {
+        var result = (arguments.length > 1) ? it.next(arguments[1]) : it.next();
+        if (!ES.TypeIsObject(result)) {
+          throw new TypeError('bad iterator');
+        }
+        return result;
+      },
+
+      Construct: function(C, args) {
+        // CreateFromConstructor
+        var obj;
+        if (ES.IsCallable(C['@@create'])) {
+          obj = C['@@create']();
+        } else {
+          // OrdinaryCreateFromConstructor
+          obj = create(C.prototype || null);
+        }
+        // Mark that we've used the es6 construct path
+        // (see emulateES6construct)
+        defineProperties(obj, { _es6construct: true });
+        // Call the constructor.
+        var result = C.apply(obj, args);
+        return ES.TypeIsObject(result) ? result : obj;
+      }
+    };
+
+    var numberConversion = (function () {
+      // from https://github.com/inexorabletash/polyfill/blob/master/typedarray.js#L176-L266
+      // with permission and license, per https://twitter.com/inexorabletash/status/372206509540659200
+
+      function roundToEven(n) {
+        var w = Math.floor(n), f = n - w;
+        if (f < 0.5) {
+          return w;
+        }
+        if (f > 0.5) {
+          return w + 1;
+        }
+        return w % 2 ? w + 1 : w;
+      }
+
+      function packIEEE754(v, ebits, fbits) {
+        var bias = (1 << (ebits - 1)) - 1,
+          s, e, f, ln,
+          i, bits, str, bytes;
+
+        // Compute sign, exponent, fraction
+        if (v !== v) {
+          // NaN
+          // http://dev.w3.org/2006/webapi/WebIDL/#es-type-mapping
+          e = (1 << ebits) - 1;
+          f = Math.pow(2, fbits - 1);
+          s = 0;
+        } else if (v === Infinity || v === -Infinity) {
+          e = (1 << ebits) - 1;
+          f = 0;
+          s = (v < 0) ? 1 : 0;
+        } else if (v === 0) {
+          e = 0;
+          f = 0;
+          s = (1 / v === -Infinity) ? 1 : 0;
+        } else {
+          s = v < 0;
+          v = Math.abs(v);
+
+          if (v >= Math.pow(2, 1 - bias)) {
+            e = Math.min(Math.floor(Math.log(v) / Math.LN2), 1023);
+            f = roundToEven(v / Math.pow(2, e) * Math.pow(2, fbits));
+            if (f / Math.pow(2, fbits) >= 2) {
+              e = e + 1;
+              f = 1;
+            }
+            if (e > bias) {
+              // Overflow
+              e = (1 << ebits) - 1;
+              f = 0;
+            } else {
+              // Normal
+              e = e + bias;
+              f = f - Math.pow(2, fbits);
+            }
+          } else {
+            // Subnormal
+            e = 0;
+            f = roundToEven(v / Math.pow(2, 1 - bias - fbits));
+          }
+        }
+
+        // Pack sign, exponent, fraction
+        bits = [];
+        for (i = fbits; i; i -= 1) {
+          bits.push(f % 2 ? 1 : 0);
+          f = Math.floor(f / 2);
+        }
+        for (i = ebits; i; i -= 1) {
+          bits.push(e % 2 ? 1 : 0);
+          e = Math.floor(e / 2);
+        }
+        bits.push(s ? 1 : 0);
+        bits.reverse();
+        str = bits.join('');
+
+        // Bits to bytes
+        bytes = [];
+        while (str.length) {
+          bytes.push(parseInt(str.slice(0, 8), 2));
+          str = str.slice(8);
+        }
+        return bytes;
+      }
+
+      function unpackIEEE754(bytes, ebits, fbits) {
+        // Bytes to bits
+        var bits = [], i, j, b, str,
+            bias, s, e, f;
+
+        for (i = bytes.length; i; i -= 1) {
+          b = bytes[i - 1];
+          for (j = 8; j; j -= 1) {
+            bits.push(b % 2 ? 1 : 0);
+            b = b >> 1;
+          }
+        }
+        bits.reverse();
+        str = bits.join('');
+
+        // Unpack sign, exponent, fraction
+        bias = (1 << (ebits - 1)) - 1;
+        s = parseInt(str.slice(0, 1), 2) ? -1 : 1;
+        e = parseInt(str.slice(1, 1 + ebits), 2);
+        f = parseInt(str.slice(1 + ebits), 2);
+
+        // Produce number
+        if (e === (1 << ebits) - 1) {
+          return f !== 0 ? NaN : s * Infinity;
+        } else if (e > 0) {
+          // Normalized
+          return s * Math.pow(2, e - bias) * (1 + f / Math.pow(2, fbits));
+        } else if (f !== 0) {
+          // Denormalized
+          return s * Math.pow(2, -(bias - 1)) * (f / Math.pow(2, fbits));
+        } else {
+          return s < 0 ? -0 : 0;
+        }
+      }
+
+      function unpackFloat64(b) { return unpackIEEE754(b, 11, 52); }
+      function packFloat64(v) { return packIEEE754(v, 11, 52); }
+      function unpackFloat32(b) { return unpackIEEE754(b, 8, 23); }
+      function packFloat32(v) { return packIEEE754(v, 8, 23); }
+
+      var conversions = {
+        toFloat32: function (num) { return unpackFloat32(packFloat32(num)); }
+      };
+      if (typeof Float32Array !== 'undefined') {
+        var float32array = new Float32Array(1);
+        conversions.toFloat32 = function (num) {
+          float32array[0] = num;
+          return float32array[0];
+        };
+      }
+      return conversions;
+    }());
+
+    defineProperties(String, {
+      fromCodePoint: function(_) { // length = 1
+        var points = _slice.call(arguments, 0, arguments.length);
+        var result = [];
+        var next;
+        for (var i = 0, length = points.length; i < length; i++) {
+          next = Number(points[i]);
+          if (!ES.SameValue(next, ES.ToInteger(next)) ||
+              next < 0 || next > 0x10FFFF) {
+            throw new RangeError('Invalid code point ' + next);
+          }
+
+          if (next < 0x10000) {
+            result.push(String.fromCharCode(next));
+          } else {
+            next -= 0x10000;
+            result.push(String.fromCharCode((next >> 10) + 0xD800));
+            result.push(String.fromCharCode((next % 0x400) + 0xDC00));
+          }
+        }
+        return result.join('');
+      },
+
+      raw: function(callSite) { // raw.length===1
+        var substitutions = _slice.call(arguments, 1, arguments.length);
+        var cooked = ES.ToObject(callSite, 'bad callSite');
+        var rawValue = cooked.raw;
+        var raw = ES.ToObject(rawValue, 'bad raw value');
+        var len = Object.keys(raw).length;
+        var literalsegments = ES.ToLength(len);
+        if (literalsegments === 0) {
+          return '';
+        }
+
+        var stringElements = [];
+        var nextIndex = 0;
+        var nextKey, next, nextSeg, nextSub;
+        while (nextIndex < literalsegments) {
+          nextKey = String(nextIndex);
+          next = raw[nextKey];
+          nextSeg = String(next);
+          stringElements.push(nextSeg);
+          if (nextIndex + 1 >= literalsegments) {
+            break;
+          }
+          next = substitutions[nextKey];
+          if (next === undefined) {
+            break;
+          }
+          nextSub = String(next);
+          stringElements.push(nextSub);
+          nextIndex++;
+        }
+        return stringElements.join('');
+      }
+    });
+
+    var StringShims = {
+      // Fast repeat, uses the `Exponentiation by squaring` algorithm.
+      // Perf: http://jsperf.com/string-repeat2/2
+      repeat: (function() {
+        var repeat = function(s, times) {
+          if (times < 1) return '';
+          if (times % 2) return repeat(s, times - 1) + s;
+          var half = repeat(s, times / 2);
+          return half + half;
+        };
+
+        return function(times) {
+          var thisStr = String(ES.CheckObjectCoercible(this));
+          times = ES.ToInteger(times);
+          if (times < 0 || times === Infinity) {
+            throw new RangeError('Invalid String#repeat value');
+          }
+          return repeat(thisStr, times);
+        };
+      })(),
+
+      startsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "startsWith" with a regex');
+        searchStr = String(searchStr);
+        var startArg = arguments.length > 1 ? arguments[1] : undefined;
+        var start = Math.max(ES.ToInteger(startArg), 0);
+        return thisStr.slice(start, start + searchStr.length) === searchStr;
+      },
+
+      endsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "endsWith" with a regex');
+        searchStr = String(searchStr);
+        var thisLen = thisStr.length;
+        var posArg = arguments.length > 1 ? arguments[1] : undefined;
+        var pos = posArg === undefined ? thisLen : ES.ToInteger(posArg);
+        var end = Math.min(Math.max(pos, 0), thisLen);
+        return thisStr.slice(end - searchStr.length, end) === searchStr;
+      },
+
+      contains: function(searchString) {
+        var position = arguments.length > 1 ? arguments[1] : undefined;
+        // Somehow this trick makes method 100% compat with the spec.
+        return _indexOf.call(this, searchString, position) !== -1;
+      },
+
+      codePointAt: function(pos) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        var position = ES.ToInteger(pos);
+        var length = thisStr.length;
+        if (position < 0 || position >= length) return undefined;
+        var first = thisStr.charCodeAt(position);
+        var isEnd = (position + 1 === length);
+        if (first < 0xD800 || first > 0xDBFF || isEnd) return first;
+        var second = thisStr.charCodeAt(position + 1);
+        if (second < 0xDC00 || second > 0xDFFF) return first;
+        return ((first - 0xD800) * 1024) + (second - 0xDC00) + 0x10000;
+      }
+    };
+    defineProperties(String.prototype, StringShims);
+
+    var hasStringTrimBug = '\u0085'.trim().length !== 1;
+    if (hasStringTrimBug) {
+      var originalStringTrim = String.prototype.trim;
+      delete String.prototype.trim;
+      // whitespace from: http://es5.github.io/#x15.5.4.20
+      // implementation from https://github.com/es-shims/es5-shim/blob/v3.4.0/es5-shim.js#L1304-L1324
+      var ws = [
+        '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003',
+        '\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028',
+        '\u2029\uFEFF'
+      ].join('');
+      var trimBeginRegexp = new RegExp('^[' + ws + '][' + ws + ']*');
+      var trimEndRegexp = new RegExp('[' + ws + '][' + ws + ']*$');
+      defineProperties(String.prototype, {
+        trim: function() {
+          if (this === undefined || this === null) {
+            throw new TypeError("can't convert " + this + " to object");
+          }
+          return String(this)
+            .replace(trimBeginRegexp, "")
+            .replace(trimEndRegexp, "");
+          }
+      });
+    }
+
+    // see https://people.mozilla.org/~jorendorff/es6-draft.html#sec-string.prototype-@@iterator
+    var StringIterator = function(s) {
+      this._s = String(ES.CheckObjectCoercible(s));
+      this._i = 0;
+    };
+    StringIterator.prototype.next = function() {
+      var s = this._s, i = this._i;
+      if (s === undefined || i >= s.length) {
+        this._s = undefined;
+        return { value: undefined, done: true };
+      }
+      var first = s.charCodeAt(i), second, len;
+      if (first < 0xD800 || first > 0xDBFF || (i+1) == s.length) {
+        len = 1;
+      } else {
+        second = s.charCodeAt(i+1);
+        len = (second < 0xDC00 || second > 0xDFFF) ? 1 : 2;
+      }
+      this._i = i + len;
+      return { value: s.substr(i, len), done: false };
+    };
+    addIterator(StringIterator.prototype);
+    addIterator(String.prototype, function() {
+      return new StringIterator(this);
+    });
+
+    if (!startsWithIsCompliant) {
+      // Firefox has a noncompliant startsWith implementation
+      String.prototype.startsWith = StringShims.startsWith;
+      String.prototype.endsWith = StringShims.endsWith;
+    }
+
+    defineProperties(Array, {
+      from: function(iterable) {
+        var mapFn = arguments.length > 1 ? arguments[1] : undefined;
+
+        var list = ES.ToObject(iterable, 'bad iterable');
+        if (arguments.length > 1 && !ES.IsCallable(mapFn)) {
+          throw new TypeError('Array.from: when provided, the second argument must be a function');
+        }
+
+        var hasThisArg = arguments.length > 2;
+        var thisArg = hasThisArg ? arguments[2] : undefined;
+
+        var usingIterator = ES.IsIterable(list);
+        // does the spec really mean that Arrays should use ArrayIterator?
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2416
+        //if (Array.isArray(list)) { usingIterator=false; }
+        var length = usingIterator ? 0 : ES.ToLength(list.length);
+        var result = ES.IsCallable(this) ? Object(usingIterator ? new this() : new this(length)) : new Array(length);
+        var it = usingIterator ? ES.GetIterator(list) : null;
+        var value;
+
+        for (var i = 0; usingIterator || (i < length); i++) {
+          if (usingIterator) {
+            value = ES.IteratorNext(it);
+            if (value.done) {
+              length = i;
+              break;
+            }
+            value = value.value;
+          } else {
+            value = list[i];
+          }
+          if (mapFn) {
+            result[i] = hasThisArg ? mapFn.call(thisArg, value, i) : mapFn(value, i);
+          } else {
+            result[i] = value;
+          }
+        }
+
+        result.length = length;
+        return result;
+      },
+
+      of: function() {
+        return Array.from(arguments);
+      }
+    });
+
+    // Our ArrayIterator is private; see
+    // https://github.com/paulmillr/es6-shim/issues/252
+    ArrayIterator = function(array, kind) {
+        this.i = 0;
+        this.array = array;
+        this.kind = kind;
+    };
+
+    defineProperties(ArrayIterator.prototype, {
+      next: function() {
+        var i = this.i, array = this.array;
+        if (i === undefined || this.kind === undefined) {
+          throw new TypeError('Not an ArrayIterator');
+        }
+        if (array!==undefined) {
+          var len = ES.ToLength(array.length);
+          for (; i < len; i++) {
+            var kind = this.kind;
+            var retval;
+            if (kind === "key") {
+              retval = i;
+            } else if (kind === "value") {
+              retval = array[i];
+            } else if (kind === "entry") {
+              retval = [i, array[i]];
+            }
+            this.i = i + 1;
+            return { value: retval, done: false };
+          }
+        }
+        this.array = undefined;
+        return { value: undefined, done: true };
+      }
+    });
+    addIterator(ArrayIterator.prototype);
+
+    defineProperties(Array.prototype, {
+      copyWithin: function(target, start) {
+        var end = arguments[2]; // copyWithin.length must be 2
+        var o = ES.ToObject(this);
+        var len = ES.ToLength(o.length);
+        target = ES.ToInteger(target);
+        start = ES.ToInteger(start);
+        var to = target < 0 ? Math.max(len + target, 0) : Math.min(target, len);
+        var from = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+        end = (end===undefined) ? len : ES.ToInteger(end);
+        var fin = end < 0 ? Math.max(len + end, 0) : Math.min(end, len);
+        var count = Math.min(fin - from, len - to);
+        var direction = 1;
+        if (from < to && to < (from + count)) {
+          direction = -1;
+          from += count - 1;
+          to += count - 1;
+        }
+        while (count > 0) {
+          if (_hasOwnProperty.call(o, from)) {
+            o[to] = o[from];
+          } else {
+            delete o[from];
+          }
+          from += direction;
+          to += direction;
+          count -= 1;
+        }
+        return o;
+      },
+
+      fill: function(value) {
+        var start = arguments.length > 1 ? arguments[1] : undefined;
+        var end = arguments.length > 2 ? arguments[2] : undefined;
+        var O = ES.ToObject(this);
+        var len = ES.ToLength(O.length);
+        start = ES.ToInteger(start === undefined ? 0 : start);
+        end = ES.ToInteger(end === undefined ? len : end);
+
+        var relativeStart = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+        var relativeEnd = end < 0 ? len + end : end;
+
+        for (var i = relativeStart; i < len && i < relativeEnd; ++i) {
+          O[i] = value;
+        }
+        return O;
+      },
+
+      find: function(predicate) {
+        var list = ES.ToObject(this);
+        var length = ES.ToLength(list.length);
+        if (!ES.IsCallable(predicate)) {
+          throw new TypeError('Array#find: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0, value; i < length; i++) {
+          value = list[i];
+          if (predicate.call(thisArg, value, i, list)) { return value; }
+        }
+        return undefined;
+      },
+
+      findIndex: function(predicate) {
+        var list = ES.ToObject(this);
+        var length = ES.ToLength(list.length);
+        if (!ES.IsCallable(predicate)) {
+          throw new TypeError('Array#findIndex: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0; i < length; i++) {
+          if (predicate.call(thisArg, list[i], i, list)) { return i; }
+        }
+        return -1;
+      },
+
+      keys: function() {
+        return new ArrayIterator(this, "key");
+      },
+
+      values: function() {
+        return new ArrayIterator(this, "value");
+      },
+
+      entries: function() {
+        return new ArrayIterator(this, "entry");
+      }
+    });
+    addIterator(Array.prototype, function() { return this.values(); });
+    // Chrome defines keys/values/entries on Array, but doesn't give us
+    // any way to identify its iterator.  So add our own shimmed field.
+    if (Object.getPrototypeOf) {
+      addIterator(Object.getPrototypeOf([].values()));
+    }
+
+    var maxSafeInteger = Math.pow(2, 53) - 1;
+    defineProperties(Number, {
+      MAX_SAFE_INTEGER: maxSafeInteger,
+      MIN_SAFE_INTEGER: -maxSafeInteger,
+      EPSILON: 2.220446049250313e-16,
+
+      parseInt: globals.parseInt,
+      parseFloat: globals.parseFloat,
+
+      isFinite: function(value) {
+        return typeof value === 'number' && global_isFinite(value);
+      },
+
+      isInteger: function(value) {
+        return Number.isFinite(value) &&
+          ES.ToInteger(value) === value;
+      },
+
+      isSafeInteger: function(value) {
+        return Number.isInteger(value) && Math.abs(value) <= Number.MAX_SAFE_INTEGER;
+      },
+
+      isNaN: function(value) {
+        // NaN !== NaN, but they are identical.
+        // NaNs are the only non-reflexive value, i.e., if x !== x,
+        // then x is NaN.
+        // isNaN is broken: it converts its argument to number, so
+        // isNaN('foo') => true
+        return value !== value;
+      }
+
+    });
+
+    if (supportsDescriptors) {
+      defineProperties(Object, {
+        getPropertyDescriptor: function(subject, name) {
+          var pd = Object.getOwnPropertyDescriptor(subject, name);
+          var proto = Object.getPrototypeOf(subject);
+          while (pd === undefined && proto !== null) {
+            pd = Object.getOwnPropertyDescriptor(proto, name);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return pd;
+        },
+
+        getPropertyNames: function(subject) {
+          var result = Object.getOwnPropertyNames(subject);
+          var proto = Object.getPrototypeOf(subject);
+
+          var addProperty = function(property) {
+            if (result.indexOf(property) === -1) {
+              result.push(property);
+            }
+          };
+
+          while (proto !== null) {
+            Object.getOwnPropertyNames(proto).forEach(addProperty);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return result;
+        }
+      });
+
+      defineProperties(Object, {
+        // 19.1.3.1
+        assign: function(target, source) {
+          if (!ES.TypeIsObject(target)) {
+            throw new TypeError('target must be an object');
+          }
+          return Array.prototype.reduce.call(arguments, function(target, source) {
+            return Object.keys(Object(source)).reduce(function(target, key) {
+              target[key] = source[key];
+              return target;
+            }, target);
+          });
+        },
+
+        is: function(a, b) {
+          return ES.SameValue(a, b);
+        },
+
+        // 19.1.3.9
+        // shim from https://gist.github.com/WebReflection/5593554
+        setPrototypeOf: (function(Object, magic) {
+          var set;
+
+          var checkArgs = function(O, proto) {
+            if (!ES.TypeIsObject(O)) {
+              throw new TypeError('cannot set prototype on a non-object');
+            }
+            if (!(proto===null || ES.TypeIsObject(proto))) {
+              throw new TypeError('can only set prototype to an object or null'+proto);
+            }
+          };
+
+          var setPrototypeOf = function(O, proto) {
+            checkArgs(O, proto);
+            set.call(O, proto);
+            return O;
+          };
+
+          try {
+            // this works already in Firefox and Safari
+            set = Object.getOwnPropertyDescriptor(Object.prototype, magic).set;
+            set.call({}, null);
+          } catch (e) {
+            if (Object.prototype !== {}[magic]) {
+              // IE < 11 cannot be shimmed
+              return;
+            }
+            // probably Chrome or some old Mobile stock browser
+            set = function(proto) {
+              this[magic] = proto;
+            };
+            // please note that this will **not** work
+            // in those browsers that do not inherit
+            // __proto__ by mistake from Object.prototype
+            // in these cases we should probably throw an error
+            // or at least be informed about the issue
+            setPrototypeOf.polyfill = setPrototypeOf(
+              setPrototypeOf({}, null),
+              Object.prototype
+            ) instanceof Object;
+            // setPrototypeOf.polyfill === true means it works as meant
+            // setPrototypeOf.polyfill === false means it's not 100% reliable
+            // setPrototypeOf.polyfill === undefined
+            // or
+            // setPrototypeOf.polyfill ==  null means it's not a polyfill
+            // which means it works as expected
+            // we can even delete Object.prototype.__proto__;
+          }
+          return setPrototypeOf;
+        })(Object, '__proto__')
+      });
+    }
+
+    // Workaround bug in Opera 12 where setPrototypeOf(x, null) doesn't work,
+    // but Object.create(null) does.
+    if (Object.setPrototypeOf && Object.getPrototypeOf &&
+        Object.getPrototypeOf(Object.setPrototypeOf({}, null)) !== null &&
+        Object.getPrototypeOf(Object.create(null)) === null) {
+      (function() {
+        var FAKENULL = Object.create(null);
+        var gpo = Object.getPrototypeOf, spo = Object.setPrototypeOf;
+        Object.getPrototypeOf = function(o) {
+          var result = gpo(o);
+          return result === FAKENULL ? null : result;
+        };
+        Object.setPrototypeOf = function(o, p) {
+          if (p === null) { p = FAKENULL; }
+          return spo(o, p);
+        };
+        Object.setPrototypeOf.polyfill = false;
+      })();
+    }
+
+    try {
+      Object.keys('foo');
+    } catch (e) {
+      var originalObjectKeys = Object.keys;
+      Object.keys = function (obj) {
+        return originalObjectKeys(ES.ToObject(obj));
+      };
+    }
+
+    var MathShims = {
+      acosh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < 1) return NaN;
+        if (value === 1) return 0;
+        if (value === Infinity) return value;
+        return Math.log(value + Math.sqrt(value * value - 1));
+      },
+
+      asinh: function(value) {
+        value = Number(value);
+        if (value === 0 || !global_isFinite(value)) {
+          return value;
+        }
+        return value < 0 ? -Math.asinh(-value) : Math.log(value + Math.sqrt(value * value + 1));
+      },
+
+      atanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < -1 || value > 1) {
+          return NaN;
+        }
+        if (value === -1) return -Infinity;
+        if (value === 1) return Infinity;
+        if (value === 0) return value;
+        return 0.5 * Math.log((1 + value) / (1 - value));
+      },
+
+      cbrt: function(value) {
+        value = Number(value);
+        if (value === 0) return value;
+        var negate = value < 0, result;
+        if (negate) value = -value;
+        result = Math.pow(value, 1/3);
+        return negate ? -result : result;
+      },
+
+      clz32: function(value) {
+        // See https://bugs.ecmascript.org/show_bug.cgi?id=2465
+        value = Number(value);
+        var number = ES.ToUint32(value);
+        if (number === 0) {
+          return 32;
+        }
+        return 32 - (number).toString(2).length;
+      },
+
+      cosh: function(value) {
+        value = Number(value);
+        if (value === 0) return 1; // +0 or -0
+        if (Number.isNaN(value)) return NaN;
+        if (!global_isFinite(value)) return Infinity;
+        if (value < 0) value = -value;
+        if (value > 21) return Math.exp(value) / 2;
+        return (Math.exp(value) + Math.exp(-value)) / 2;
+      },
+
+      expm1: function(value) {
+        value = Number(value);
+        if (value === -Infinity) return -1;
+        if (!global_isFinite(value) || value === 0) return value;
+        return Math.exp(value) - 1;
+      },
+
+      hypot: function(x, y) {
+        var anyNaN = false;
+        var allZero = true;
+        var anyInfinity = false;
+        var numbers = [];
+        Array.prototype.every.call(arguments, function(arg) {
+          var num = Number(arg);
+          if (Number.isNaN(num)) anyNaN = true;
+          else if (num === Infinity || num === -Infinity) anyInfinity = true;
+          else if (num !== 0) allZero = false;
+          if (anyInfinity) {
+            return false;
+          } else if (!anyNaN) {
+            numbers.push(Math.abs(num));
+          }
+          return true;
+        });
+        if (anyInfinity) return Infinity;
+        if (anyNaN) return NaN;
+        if (allZero) return 0;
+
+        numbers.sort(function (a, b) { return b - a; });
+        var largest = numbers[0];
+        var divided = numbers.map(function (number) { return number / largest; });
+        var sum = divided.reduce(function (sum, number) { return sum += number * number; }, 0);
+        return largest * Math.sqrt(sum);
+      },
+
+      log2: function(value) {
+        return Math.log(value) * Math.LOG2E;
+      },
+
+      log10: function(value) {
+        return Math.log(value) * Math.LOG10E;
+      },
+
+      log1p: function(value) {
+        value = Number(value);
+        if (value < -1 || Number.isNaN(value)) return NaN;
+        if (value === 0 || value === Infinity) return value;
+        if (value === -1) return -Infinity;
+        var result = 0;
+        var n = 50;
+
+        if (value < 0 || value > 1) return Math.log(1 + value);
+        for (var i = 1; i < n; i++) {
+          if ((i % 2) === 0) {
+            result -= Math.pow(value, i) / i;
+          } else {
+            result += Math.pow(value, i) / i;
+          }
+        }
+
+        return result;
+      },
+
+      sign: function(value) {
+        var number = +value;
+        if (number === 0) return number;
+        if (Number.isNaN(number)) return number;
+        return number < 0 ? -1 : 1;
+      },
+
+      sinh: function(value) {
+        value = Number(value);
+        if (!global_isFinite(value) || value === 0) return value;
+        return (Math.exp(value) - Math.exp(-value)) / 2;
+      },
+
+      tanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value === 0) return value;
+        if (value === Infinity) return 1;
+        if (value === -Infinity) return -1;
+        return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+      },
+
+      trunc: function(value) {
+        var number = Number(value);
+        return number < 0 ? -Math.floor(-number) : Math.floor(number);
+      },
+
+      imul: function(x, y) {
+        // taken from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
+        x = ES.ToUint32(x);
+        y = ES.ToUint32(y);
+        var ah  = (x >>> 16) & 0xffff;
+        var al = x & 0xffff;
+        var bh  = (y >>> 16) & 0xffff;
+        var bl = y & 0xffff;
+        // the shift by 0 fixes the sign on the high part
+        // the final |0 converts the unsigned value into a signed value
+        return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);
+      },
+
+      fround: function(x) {
+        if (x === 0 || x === Infinity || x === -Infinity || Number.isNaN(x)) {
+          return x;
+        }
+        var num = Number(x);
+        return numberConversion.toFloat32(num);
+      }
+    };
+    defineProperties(Math, MathShims);
+
+    if (Math.imul(0xffffffff, 5) !== -5) {
+      // Safari 6.1, at least, reports "0" for this value
+      Math.imul = MathShims.imul;
+    }
+
+    // Promises
+    // Simplest possible implementation; use a 3rd-party library if you
+    // want the best possible speed and/or long stack traces.
+    var PromiseShim = (function() {
+
+      var Promise, Promise$prototype;
+
+      ES.IsPromise = function(promise) {
+        if (!ES.TypeIsObject(promise)) {
+          return false;
+        }
+        if (!promise._promiseConstructor) {
+          // _promiseConstructor is a bit more unique than _status, so we'll
+          // check that instead of the [[PromiseStatus]] internal field.
+          return false;
+        }
+        if (promise._status === undefined) {
+          return false; // uninitialized
+        }
+        return true;
+      };
+
+      // "PromiseCapability" in the spec is what most promise implementations
+      // call a "deferred".
+      var PromiseCapability = function(C) {
+        if (!ES.IsCallable(C)) {
+          throw new TypeError('bad promise constructor');
+        }
+        var capability = this;
+        var resolver = function(resolve, reject) {
+          capability.resolve = resolve;
+          capability.reject = reject;
+        };
+        capability.promise = ES.Construct(C, [resolver]);
+        // see https://bugs.ecmascript.org/show_bug.cgi?id=2478
+        if (!capability.promise._es6construct) {
+          throw new TypeError('bad promise constructor');
+        }
+        if (!(ES.IsCallable(capability.resolve) &&
+              ES.IsCallable(capability.reject))) {
+          throw new TypeError('bad promise constructor');
+        }
+      };
+
+      // find an appropriate setImmediate-alike
+      var setTimeout = globals.setTimeout;
+      var makeZeroTimeout;
+      if (typeof window !== 'undefined' && ES.IsCallable(window.postMessage)) {
+        makeZeroTimeout = function() {
+          // from http://dbaron.org/log/20100309-faster-timeouts
+          var timeouts = [];
+          var messageName = "zero-timeout-message";
+          var setZeroTimeout = function(fn) {
+            timeouts.push(fn);
+            window.postMessage(messageName, "*");
+          };
+          var handleMessage = function(event) {
+            if (event.source == window && event.data == messageName) {
+              event.stopPropagation();
+              if (timeouts.length === 0) { return; }
+              var fn = timeouts.shift();
+              fn();
+            }
+          };
+          window.addEventListener("message", handleMessage, true);
+          return setZeroTimeout;
+        };
+      }
+      var makePromiseAsap = function() {
+        // An efficient task-scheduler based on a pre-existing Promise
+        // implementation, which we can use even if we override the
+        // global Promise below (in order to workaround bugs)
+        // https://github.com/Raynos/observ-hash/issues/2#issuecomment-35857671
+        var P = globals.Promise;
+        return P && P.resolve && function(task) {
+          return P.resolve().then(task);
+        };
+      };
+      var enqueue = ES.IsCallable(globals.setImmediate) ?
+        globals.setImmediate.bind(globals) :
+        typeof process === 'object' && process.nextTick ? process.nextTick :
+        makePromiseAsap() ||
+        (ES.IsCallable(makeZeroTimeout) ? makeZeroTimeout() :
+        function(task) { setTimeout(task, 0); }); // fallback
+
+      var triggerPromiseReactions = function(reactions, x) {
+        reactions.forEach(function(reaction) {
+          enqueue(function() {
+            // PromiseReactionTask
+            var handler = reaction.handler;
+            var capability = reaction.capability;
+            var resolve = capability.resolve;
+            var reject = capability.reject;
+            try {
+              var result = handler(x);
+              if (result === capability.promise) {
+                throw new TypeError('self resolution');
+              }
+              var updateResult =
+                updatePromiseFromPotentialThenable(result, capability);
+              if (!updateResult) {
+                resolve(result);
+              }
+            } catch (e) {
+              reject(e);
+            }
+          });
+        });
+      };
+
+      var updatePromiseFromPotentialThenable = function(x, capability) {
+        if (!ES.TypeIsObject(x)) {
+          return false;
+        }
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          var then = x.then; // only one invocation of accessor
+          if (!ES.IsCallable(then)) { return false; }
+          then.call(x, resolve, reject);
+        } catch(e) {
+          reject(e);
+        }
+        return true;
+      };
+
+      var promiseResolutionHandler = function(promise, onFulfilled, onRejected){
+        return function(x) {
+          if (x === promise) {
+            return onRejected(new TypeError('self resolution'));
+          }
+          var C = promise._promiseConstructor;
+          var capability = new PromiseCapability(C);
+          var updateResult = updatePromiseFromPotentialThenable(x, capability);
+          if (updateResult) {
+            return capability.promise.then(onFulfilled, onRejected);
+          } else {
+            return onFulfilled(x);
+          }
+        };
+      };
+
+      Promise = function(resolver) {
+        var promise = this;
+        promise = emulateES6construct(promise);
+        if (!promise._promiseConstructor) {
+          // we use _promiseConstructor as a stand-in for the internal
+          // [[PromiseStatus]] field; it's a little more unique.
+          throw new TypeError('bad promise');
+        }
+        if (promise._status !== undefined) {
+          throw new TypeError('promise already initialized');
+        }
+        // see https://bugs.ecmascript.org/show_bug.cgi?id=2482
+        if (!ES.IsCallable(resolver)) {
+          throw new TypeError('not a valid resolver');
+        }
+        promise._status = 'unresolved';
+        promise._resolveReactions = [];
+        promise._rejectReactions = [];
+
+        var resolve = function(resolution) {
+          if (promise._status !== 'unresolved') { return; }
+          var reactions = promise._resolveReactions;
+          promise._result = resolution;
+          promise._resolveReactions = undefined;
+          promise._rejectReactions = undefined;
+          promise._status = 'has-resolution';
+          triggerPromiseReactions(reactions, resolution);
+        };
+        var reject = function(reason) {
+          if (promise._status !== 'unresolved') { return; }
+          var reactions = promise._rejectReactions;
+          promise._result = reason;
+          promise._resolveReactions = undefined;
+          promise._rejectReactions = undefined;
+          promise._status = 'has-rejection';
+          triggerPromiseReactions(reactions, reason);
+        };
+        try {
+          resolver(resolve, reject);
+        } catch (e) {
+          reject(e);
+        }
+        return promise;
+      };
+      Promise$prototype = Promise.prototype;
+      defineProperties(Promise, {
+        '@@create': function(obj) {
+          var constructor = this;
+          // AllocatePromise
+          // The `obj` parameter is a hack we use for es5
+          // compatibility.
+          var prototype = constructor.prototype || Promise$prototype;
+          obj = obj || create(prototype);
+          defineProperties(obj, {
+            _status: undefined,
+            _result: undefined,
+            _resolveReactions: undefined,
+            _rejectReactions: undefined,
+            _promiseConstructor: undefined
+          });
+          obj._promiseConstructor = constructor;
+          return obj;
+        }
+      });
+
+      var _promiseAllResolver = function(index, values, capability, remaining) {
+        var done = false;
+        return function(x) {
+          if (done) { return; } // protect against being called multiple times
+          done = true;
+          values[index] = x;
+          if ((--remaining.count) === 0) {
+            var resolve = capability.resolve;
+            resolve(values); // call w/ this===undefined
+          }
+        };
+      };
+
+      Promise.all = function(iterable) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          if (!ES.IsIterable(iterable)) {
+            throw new TypeError('bad iterable');
+          }
+          var it = ES.GetIterator(iterable);
+          var values = [], remaining = { count: 1 };
+          for (var index = 0; ; index++) {
+            var next = ES.IteratorNext(it);
+            if (next.done) {
+              break;
+            }
+            var nextPromise = C.resolve(next.value);
+            var resolveElement = _promiseAllResolver(
+              index, values, capability, remaining
+            );
+            remaining.count++;
+            nextPromise.then(resolveElement, capability.reject);
+          }
+          if ((--remaining.count) === 0) {
+            resolve(values); // call w/ this===undefined
+          }
+        } catch (e) {
+          reject(e);
+        }
+        return capability.promise;
+      };
+
+      Promise.race = function(iterable) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        var reject = capability.reject;
+        try {
+          if (!ES.IsIterable(iterable)) {
+            throw new TypeError('bad iterable');
+          }
+          var it = ES.GetIterator(iterable);
+          while (true) {
+            var next = ES.IteratorNext(it);
+            if (next.done) {
+              // If iterable has no items, resulting promise will never
+              // resolve; see:
+              // https://github.com/domenic/promises-unwrapping/issues/75
+              // https://bugs.ecmascript.org/show_bug.cgi?id=2515
+              break;
+            }
+            var nextPromise = C.resolve(next.value);
+            nextPromise.then(resolve, reject);
+          }
+        } catch (e) {
+          reject(e);
+        }
+        return capability.promise;
+      };
+
+      Promise.reject = function(reason) {
+        var C = this;
+        var capability = new PromiseCapability(C);
+        var reject = capability.reject;
+        reject(reason); // call with this===undefined
+        return capability.promise;
+      };
+
+      Promise.resolve = function(v) {
+        var C = this;
+        if (ES.IsPromise(v)) {
+          var constructor = v._promiseConstructor;
+          if (constructor === C) { return v; }
+        }
+        var capability = new PromiseCapability(C);
+        var resolve = capability.resolve;
+        resolve(v); // call with this===undefined
+        return capability.promise;
+      };
+
+      Promise.prototype['catch'] = function( onRejected ) {
+        return this.then(undefined, onRejected);
+      };
+
+      Promise.prototype.then = function( onFulfilled, onRejected ) {
+        var promise = this;
+        if (!ES.IsPromise(promise)) { throw new TypeError('not a promise'); }
+        // this.constructor not this._promiseConstructor; see
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2513
+        var C = this.constructor;
+        var capability = new PromiseCapability(C);
+        if (!ES.IsCallable(onRejected)) {
+          onRejected = function(e) { throw e; };
+        }
+        if (!ES.IsCallable(onFulfilled)) {
+          onFulfilled = function(x) { return x; };
+        }
+        var resolutionHandler =
+          promiseResolutionHandler(promise, onFulfilled, onRejected);
+        var resolveReaction =
+          { capability: capability, handler: resolutionHandler };
+        var rejectReaction =
+          { capability: capability, handler: onRejected };
+        switch (promise._status) {
+        case 'unresolved':
+          promise._resolveReactions.push(resolveReaction);
+          promise._rejectReactions.push(rejectReaction);
+          break;
+        case 'has-resolution':
+          triggerPromiseReactions([resolveReaction], promise._result);
+          break;
+        case 'has-rejection':
+          triggerPromiseReactions([rejectReaction], promise._result);
+          break;
+        default:
+          throw new TypeError('unexpected');
+        }
+        return capability.promise;
+      };
+
+      return Promise;
+    })();
+    // export the Promise constructor.
+    defineProperties(globals, { Promise: PromiseShim });
+    // In Chrome 33 (and thereabouts) Promise is defined, but the
+    // implementation is buggy in a number of ways.  Let's check subclassing
+    // support to see if we have a buggy implementation.
+    var promiseSupportsSubclassing = supportsSubclassing(globals.Promise, function(S) {
+      return S.resolve(42) instanceof S;
+    });
+    var promiseIgnoresNonFunctionThenCallbacks = (function () {
+      try {
+        globals.Promise.reject(42).then(null, 5).then(null, function () {});
+        return true;
+      } catch (ex) {
+        return false;
+      }
+    }());
+    if (!promiseSupportsSubclassing || !promiseIgnoresNonFunctionThenCallbacks) {
+      globals.Promise = PromiseShim;
+    }
+
+    // Map and Set require a true ES5 environment
+    if (supportsDescriptors) {
+
+      var fastkey = function fastkey(key) {
+        var type = typeof key;
+        if (type === 'string') {
+          return '$' + key;
+        } else if (type === 'number') {
+          // note that -0 will get coerced to "0" when used as a property key
+          return key;
+        }
+        return null;
+      };
+
+      var emptyObject = function emptyObject() {
+        // accomodate some older not-quite-ES5 browsers
+        return Object.create ? Object.create(null) : {};
+      };
+
+      var collectionShims = {
+        Map: (function() {
+
+          var empty = {};
+
+          function MapEntry(key, value) {
+            this.key = key;
+            this.value = value;
+            this.next = null;
+            this.prev = null;
+          }
+
+          MapEntry.prototype.isRemoved = function() {
+            return this.key === empty;
+          };
+
+          function MapIterator(map, kind) {
+            this.head = map._head;
+            this.i = this.head;
+            this.kind = kind;
+          }
+
+          MapIterator.prototype = {
+            next: function() {
+              var i = this.i, kind = this.kind, head = this.head, result;
+              if (this.i === undefined) {
+                return { value: undefined, done: true };
+              }
+              while (i.isRemoved() && i !== head) {
+                // back up off of removed entries
+                i = i.prev;
+              }
+              // advance to next unreturned element.
+              while (i.next !== head) {
+                i = i.next;
+                if (!i.isRemoved()) {
+                  if (kind === "key") {
+                    result = i.key;
+                  } else if (kind === "value") {
+                    result = i.value;
+                  } else {
+                    result = [i.key, i.value];
+                  }
+                  this.i = i;
+                  return { value: result, done: false };
+                }
+              }
+              // once the iterator is done, it is done forever.
+              this.i = undefined;
+              return { value: undefined, done: true };
+            }
+          };
+          addIterator(MapIterator.prototype);
+
+          function Map(iterable) {
+            var map = this;
+            map = emulateES6construct(map);
+            if (!map._es6map) {
+              throw new TypeError('bad map');
+            }
+
+            var head = new MapEntry(null, null);
+            // circular doubly-linked list.
+            head.next = head.prev = head;
+
+            defineProperties(map, {
+              '_head': head,
+              '_storage': emptyObject(),
+              '_size': 0
+            });
+
+            // Optionally initialize map from iterable
+            if (iterable !== undefined && iterable !== null) {
+              var it = ES.GetIterator(iterable);
+              var adder = map.set;
+              if (!ES.IsCallable(adder)) { throw new TypeError('bad map'); }
+              while (true) {
+                var next = ES.IteratorNext(it);
+                if (next.done) { break; }
+                var nextItem = next.value;
+                if (!ES.TypeIsObject(nextItem)) {
+                  throw new TypeError('expected iterable of pairs');
+                }
+                adder.call(map, nextItem[0], nextItem[1]);
+              }
+            }
+            return map;
+          }
+          var Map$prototype = Map.prototype;
+          defineProperties(Map, {
+            '@@create': function(obj) {
+              var constructor = this;
+              var prototype = constructor.prototype || Map$prototype;
+              obj = obj || create(prototype);
+              defineProperties(obj, { _es6map: true });
+              return obj;
+            }
+          });
+
+          Object.defineProperty(Map.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._size === 'undefined') {
+                throw new TypeError('size method called on incompatible Map');
+              }
+              return this._size;
+            }
+          });
+
+          defineProperties(Map.prototype, {
+            get: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                var entry = this._storage[fkey];
+                return entry ? entry.value : undefined;
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return i.value;
+                }
+              }
+              return undefined;
+            },
+
+            has: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                return typeof this._storage[fkey] !== 'undefined';
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            set: function(key, value) {
+              var head = this._head, i = head, entry;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] !== 'undefined') {
+                  this._storage[fkey].value = value;
+                  return;
+                } else {
+                  entry = this._storage[fkey] = new MapEntry(key, value);
+                  i = head.prev;
+                  // fall through
+                }
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.value = value;
+                  return;
+                }
+              }
+              entry = entry || new MapEntry(key, value);
+              if (ES.SameValue(-0, key)) {
+                entry.key = +0; // coerce -0 to +0 in entry
+              }
+              entry.next = this._head;
+              entry.prev = this._head.prev;
+              entry.prev.next = entry;
+              entry.next.prev = entry;
+              this._size += 1;
+            },
+
+            'delete': function(key) {
+              var head = this._head, i = head;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] === 'undefined') {
+                  return false;
+                }
+                i = this._storage[fkey].prev;
+                delete this._storage[fkey];
+                // fall through
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.key = i.value = empty;
+                  i.prev.next = i.next;
+                  i.next.prev = i.prev;
+                  this._size -= 1;
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            clear: function() {
+              this._size = 0;
+              this._storage = emptyObject();
+              var head = this._head, i = head, p = i.next;
+              while ((i = p) !== head) {
+                i.key = i.value = empty;
+                p = i.next;
+                i.next = i.prev = head;
+              }
+              head.next = head.prev = head;
+            },
+
+            keys: function() {
+              return new MapIterator(this, "key");
+            },
+
+            values: function() {
+              return new MapIterator(this, "value");
+            },
+
+            entries: function() {
+              return new MapIterator(this, "key+value");
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var it = this.entries();
+              for (var entry = it.next(); !entry.done; entry = it.next()) {
+                callback.call(context, entry.value[1], entry.value[0], this);
+              }
+            }
+          });
+          addIterator(Map.prototype, function() { return this.entries(); });
+
+          return Map;
+        })(),
+
+        Set: (function() {
+          // Creating a Map is expensive.  To speed up the common case of
+          // Sets containing only string or numeric keys, we use an object
+          // as backing storage and lazily create a full Map only when
+          // required.
+          var SetShim = function Set(iterable) {
+            var set = this;
+            set = emulateES6construct(set);
+            if (!set._es6set) {
+              throw new TypeError('bad set');
+            }
+
+            defineProperties(set, {
+              '[[SetData]]': null,
+              '_storage': emptyObject()
+            });
+
+            // Optionally initialize map from iterable
+            if (iterable !== undefined && iterable !== null) {
+              var it = ES.GetIterator(iterable);
+              var adder = set.add;
+              if (!ES.IsCallable(adder)) { throw new TypeError('bad set'); }
+              while (true) {
+                var next = ES.IteratorNext(it);
+                if (next.done) { break; }
+                var nextItem = next.value;
+                adder.call(set, nextItem);
+              }
+            }
+            return set;
+          };
+          var Set$prototype = SetShim.prototype;
+          defineProperties(SetShim, {
+            '@@create': function(obj) {
+              var constructor = this;
+              var prototype = constructor.prototype || Set$prototype;
+              obj = obj || create(prototype);
+              defineProperties(obj, { _es6set: true });
+              return obj;
+            }
+          });
+
+          // Switch from the object backing storage to a full Map.
+          var ensureMap = function ensureMap(set) {
+            if (!set['[[SetData]]']) {
+              var m = set['[[SetData]]'] = new collectionShims.Map();
+              Object.keys(set._storage).forEach(function(k) {
+                // fast check for leading '$'
+                if (k.charCodeAt(0) === 36) {
+                  k = k.slice(1);
+                } else {
+                  k = +k;
+                }
+                m.set(k, k);
+              });
+              set._storage = null; // free old backing storage
+            }
+          };
+
+          Object.defineProperty(SetShim.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._storage === 'undefined') {
+                // https://github.com/paulmillr/es6-shim/issues/176
+                throw new TypeError('size method called on incompatible Set');
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].size;
+            }
+          });
+
+          defineProperties(SetShim.prototype, {
+            has: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                return !!this._storage[fkey];
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].has(key);
+            },
+
+            add: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                this._storage[fkey]=true;
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].set(key, key);
+            },
+
+            'delete': function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                delete this._storage[fkey];
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]']['delete'](key);
+            },
+
+            clear: function() {
+              if (this._storage) {
+                this._storage = emptyObject();
+                return;
+              }
+              return this['[[SetData]]'].clear();
+            },
+
+            keys: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].keys();
+            },
+
+            values: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].values();
+            },
+
+            entries: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].entries();
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var entireSet = this;
+              ensureMap(this);
+              this['[[SetData]]'].forEach(function(value, key) {
+                callback.call(context, key, key, entireSet);
+              });
+            }
+          });
+          addIterator(SetShim.prototype, function() { return this.values(); });
+
+          return SetShim;
+        })()
+      };
+      defineProperties(globals, collectionShims);
+
+      if (globals.Map || globals.Set) {
+        /*
+          - In Firefox < 23, Map#size is a function.
+          - In all current Firefox, Set#entries/keys/values & Map#clear do not exist
+          - https://bugzilla.mozilla.org/show_bug.cgi?id=869996
+          - In Firefox 24, Map and Set do not implement forEach
+          - In Firefox 25 at least, Map and Set are callable without "new"
+        */
+        if (
+          typeof globals.Map.prototype.clear !== 'function' ||
+          new globals.Set().size !== 0 ||
+          new globals.Map().size !== 0 ||
+          typeof globals.Map.prototype.keys !== 'function' ||
+          typeof globals.Set.prototype.keys !== 'function' ||
+          typeof globals.Map.prototype.forEach !== 'function' ||
+          typeof globals.Set.prototype.forEach !== 'function' ||
+          isCallableWithoutNew(globals.Map) ||
+          isCallableWithoutNew(globals.Set) ||
+          !supportsSubclassing(globals.Map, function(M) {
+            return (new M([])) instanceof M;
+          })
+        ) {
+          globals.Map = collectionShims.Map;
+          globals.Set = collectionShims.Set;
+        }
+      }
+      // Shim incomplete iterator implementations.
+      addIterator(Object.getPrototypeOf((new globals.Map()).keys()));
+      addIterator(Object.getPrototypeOf((new globals.Set()).keys()));
+    }
+  };
+
+  if (typeof define === 'function' && define.amd) {
+    define(main); // RequireJS
+  } else {
+    main(); // CommonJS and <script>
+  }
+})();
+
diff --git a/ajax/libs/es6-shim/0.16.0/es6-shim.map b/ajax/libs/es6-shim/0.16.0/es6-shim.map
new file mode 100644
index 000000000..98495207c
--- /dev/null
+++ b/ajax/libs/es6-shim/0.16.0/es6-shim.map
@@ -0,0 +1 @@
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new file mode 100644
index 000000000..732b9b737
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diff --git a/ajax/libs/es6-shim/0.2.0/es6-shim.js b/ajax/libs/es6-shim/0.2.0/es6-shim.js
new file mode 100644
index 000000000..1cb19b13c
--- /dev/null
+++ b/ajax/libs/es6-shim/0.2.0/es6-shim.js
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+(function(definition) {
+  // RequireJS.
+  if (typeof define === 'function') {
+    define(definition);
+  // CommonJS and <script>.
+  } else {
+    definition();
+  }
+})(function() {
+  'use strict';
+
+  var globall = (typeof global === 'undefined') ? window : global;
+  var global_isNaN = globall.isNaN;
+  var global_isFinite = globall.isFinite;
+  
+  var unique = function(array) {
+    var result = [];
+    var item;
+
+    for (var i = 0, length = array.length; i < length; i++) {
+      item = array[i];
+      if (result.indexOf(item) === -1) {
+        result.push(item);
+      }
+    }
+    return result;
+  };
+
+  var defineProperty = function(object, name, method) {
+    if (!object[name]) {
+      Object.defineProperty(object, name, {
+        configurable: true,
+        enumerable: false,
+        writable: true,
+        value: method
+      });
+    }
+  };
+
+  var defineProperties = function(object, map) {
+    Object.keys(map).forEach(function(name) {
+      defineProperty(object, name, map[name]);
+    });
+  };
+
+  defineProperties(String.prototype, {
+    repeat: function(times) {
+      return new Array(times + 1).join(this);
+    },
+
+    startsWith: function(substring) {
+      return this.indexOf(substring) === 0;
+    },
+
+    endsWith: function(s) {
+      var t = String(s);
+      return this.lastIndexOf(t) === this.length - t.length;
+    },
+
+    contains: function(s) {
+      return this.indexOf(s) !== -1;
+    },
+
+    toArray: function() {
+      return this.split('');
+    }
+  });
+
+  defineProperties(Array, {
+    from: function(iterable) {
+      var object = Object(iterable);
+      var array = [];
+
+      for (var key = 0, length = object.length >>> 0; key < length; key++) {
+        if (key in object) {
+          array[key] = object[key];
+        }
+      }
+
+      return array;
+    },
+
+    of: function() {
+      return Array.prototype.slice.call(arguments);
+    }
+  });
+
+  defineProperties(Number, {
+    isInteger: function(value) {
+      return typeof value === 'number' && global_isFinite(value) && 
+        value > -9007199254740992 && value < 9007199254740992 &&
+        Math.floor(value) === value;
+    },
+
+    isNaN: function(value) {
+      return typeof value === 'number' && global_isNaN(value);
+    },
+
+    toInteger: function(value) {
+      var n = +value;
+      if (isNaN(n)) return +0;
+      if (n === 0 || !global_isFinite(n)) return n;
+      return Math.sign(n) * Math.floor(Math.abs(n));
+    }
+  });
+
+  defineProperties(Object, {
+    getOwnPropertyDescriptors: function(subject) {
+      var descs = {};
+      Object.getOwnPropertyNames(subject).forEach(function(propName) {
+        descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+      });
+      return descs;
+    },
+
+    getPropertyDescriptor: function(subject, name) {
+      var pd = Object.getOwnPropertyDescriptor(subject, name);
+      var proto = Object.getPrototypeOf(subject);
+      while (pd === undefined && proto !== null) {
+        pd = Object.getOwnPropertyDescriptor(proto, name);
+        proto = Object.getPrototypeOf(proto);
+      }
+      return pd;
+    },
+
+    getPropertyNames: function(subject, name) {
+      var result = Object.getOwnPropertyNames(subject);
+      var proto = Object.getPrototypeOf(subject);
+      while (proto !== null) {
+        result = result.concat(Object.getOwnPropertyNames(proto));
+        proto = Object.getPrototypeOf(proto);
+      }
+      return unique(result);
+    },
+
+    is: function(x, y) {
+      if (x === y) {
+        // 0 === -0, but they are not identical
+        return x !== 0 || 1 / x === 1 / y;
+      }
+
+      // NaN !== NaN, but they are identical.
+      // NaNs are the only non-reflexive value, i.e., if x !== x,
+      // then x is a NaN.
+      // isNaN is broken: it converts its argument to number, so
+      // isNaN("foo") => true
+      return x !== x && y !== y;
+    }
+  });
+  
+  defineProperties(Math, {
+    sign: function(value) {
+      var number = +value;
+      if (global_isNaN(number) || number === 0) return number;
+      return (number < 0) ? -1 : 1;
+    }
+  });
+
+  defineProperties(globall, {
+    Map: (function() {
+      var indexOfIdentical = function(keys, key) {
+        for (var i = 0, length = keys.length; i < length; i++) {
+          if (Object.is(keys[i], key)) return i;
+        }
+        return -1;
+      };
+
+      function Map() {
+        if (!(this instanceof Map)) return new Map;
+        defineProperty(this, 'keys', []);
+        defineProperty(this, 'values', []);
+      }
+
+      defineProperties(Map.prototype, {
+        get: function(key) {
+          var index = indexOfIdentical(this.keys, key);
+          return index < 0 ? undefined : this.values[index];
+        },
+
+        has: function(key) {
+          return indexOfIdentical(this.keys, key) >= 0;
+        },
+
+        set: function(key, value) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) index = keys.length;
+          keys[index] = key;
+          values[index] = value;
+        },
+
+        'delete': function(key) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) return false;
+          keys.splice(index, 1);
+          values.splice(index, 1);
+          return true;
+        }
+      });
+      return Map;
+    })(),
+
+    Set: (function() {
+      function Set() {
+        if (!(this instanceof Set)) return new Set;
+        defineProperty(this, 'map', Map());
+      }
+
+      defineProperties(Set.prototype, {
+        has: function(key) {
+          return this.map.has(key);
+        },
+
+        add: function(key) {
+          this.map.set(key, true);
+        },
+
+        'delete': function(key) {
+          return this.map.delete(key);
+        }
+      });
+
+      return Set;
+    })()
+  });
+  
+  /*defineProperties(globall.Set, {
+    of: function(iterable) {
+      var object = Object(iterable);
+      var set = Set();
+
+      for (var key = 0, length = object.length >>> 0; key < length; key++) {
+        if (key in object && !(set.has(key))) {
+          set.add(object[key]);
+        }
+      }
+
+      return set;
+    }
+  });*/
+});
diff --git a/ajax/libs/es6-shim/0.2.0/es6-shim.min.js b/ajax/libs/es6-shim/0.2.0/es6-shim.min.js
new file mode 100644
index 000000000..e1e22074e
--- /dev/null
+++ b/ajax/libs/es6-shim/0.2.0/es6-shim.min.js
@@ -0,0 +1 @@
+!function(t){"function"==typeof define?define(t):t()}(function(){"use strict";var t="undefined"==typeof global?window:global,e=t.isNaN,n=t.isFinite,r=function(t){for(var e,n=[],r=0,i=t.length;i>r;r++)e=t[r],-1===n.indexOf(e)&&n.push(e);return n},i=function(t,e,n){t[e]||Object.defineProperty(t,e,{configurable:!0,enumerable:!1,writable:!0,value:n})},o=function(t,e){Object.keys(e).forEach(function(n){i(t,n,e[n])})};o(String.prototype,{repeat:function(t){return new Array(t+1).join(this)},startsWith:function(t){return 0===this.indexOf(t)},endsWith:function(t){var e=String(t);return this.lastIndexOf(e)===this.length-e.length},contains:function(t){return-1!==this.indexOf(t)},toArray:function(){return this.split("")}}),o(Array,{from:function(t){for(var e=Object(t),n=[],r=0,i=e.length>>>0;i>r;r++)r in e&&(n[r]=e[r]);return n},of:function(){return Array.prototype.slice.call(arguments)}}),o(Number,{isInteger:function(t){return"number"==typeof t&&n(t)&&t>-9007199254740992&&9007199254740992>t&&Math.floor(t)===t},isNaN:function(t){return"number"==typeof t&&e(t)},toInteger:function(t){var e=+t;return isNaN(e)?0:0!==e&&n(e)?Math.sign(e)*Math.floor(Math.abs(e)):e}}),o(Object,{getOwnPropertyDescriptors:function(t){var e={};return Object.getOwnPropertyNames(t).forEach(function(n){e[n]=Object.getOwnPropertyDescriptor(t,n)}),e},getPropertyDescriptor:function(t,e){for(var n=Object.getOwnPropertyDescriptor(t,e),r=Object.getPrototypeOf(t);void 0===n&&null!==r;)n=Object.getOwnPropertyDescriptor(r,e),r=Object.getPrototypeOf(r);return n},getPropertyNames:function(t){for(var e=Object.getOwnPropertyNames(t),n=Object.getPrototypeOf(t);null!==n;)e=e.concat(Object.getOwnPropertyNames(n)),n=Object.getPrototypeOf(n);return r(e)},is:function(t,e){return t===e?0!==t||1/t===1/e:t!==t&&e!==e}}),o(Math,{sign:function(t){var n=+t;return e(n)||0===n?n:0>n?-1:1}}),o(t,{Map:function(){function t(){return this instanceof t?(i(this,"keys",[]),void i(this,"values",[])):new t}var e=function(t,e){for(var n=0,r=t.length;r>n;n++)if(Object.is(t[n],e))return n;return-1};return o(t.prototype,{get:function(t){var n=e(this.keys,t);return 0>n?void 0:this.values[n]},has:function(t){return e(this.keys,t)>=0},set:function(t,n){var r=this.keys,i=this.values,o=e(r,t);0>o&&(o=r.length),r[o]=t,i[o]=n},"delete":function(t){var n=this.keys,r=this.values,i=e(n,t);return 0>i?!1:(n.splice(i,1),r.splice(i,1),!0)}}),t}(),Set:function(){function t(){return this instanceof t?void i(this,"map",Map()):new t}return o(t.prototype,{has:function(t){return this.map.has(t)},add:function(t){this.map.set(t,!0)},"delete":function(t){return this.map.delete(t)}}),t}()})});
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.2.1/es6-shim.js b/ajax/libs/es6-shim/0.2.1/es6-shim.js
new file mode 100644
index 000000000..bfb3282c6
--- /dev/null
+++ b/ajax/libs/es6-shim/0.2.1/es6-shim.js
@@ -0,0 +1,232 @@
+({define: (typeof define === 'function')
+    ? define  // RequireJS
+    : function(definition) {definition();} // CommonJS and <script>
+}).define(function() {
+  'use strict';
+
+  var globall = (typeof global === 'undefined') ? window : global;
+  var global_isNaN = globall.isNaN;
+  var global_isFinite = globall.isFinite;
+
+  var defineProperty = function(object, name, method) {
+    if (!object[name]) {
+      Object.defineProperty(object, name, {
+        configurable: true,
+        enumerable: false,
+        writable: true,
+        value: method
+      });
+    }
+  };
+
+  var defineProperties = function(object, map) {
+    Object.keys(map).forEach(function(name) {
+      defineProperty(object, name, map[name]);
+    });
+  };
+
+  defineProperties(String.prototype, {
+    repeat: function(times) {
+      return new Array(times + 1).join(this);
+    },
+
+    startsWith: function(substring) {
+      return this.indexOf(substring) === 0;
+    },
+
+    endsWith: function(s) {
+      var t = String(s);
+      var index = this.lastIndexOf(t)
+      return index >= 0 && index === this.length - t.length;
+    },
+
+    contains: function(s) {
+      return this.indexOf(s) !== -1;
+    },
+
+    toArray: function() {
+      return this.split('');
+    }
+  });
+
+  defineProperties(Array, {
+    from: function(iterable) {
+      var object = Object(iterable);
+      var array = [];
+
+      for (var key = 0, length = object.length >>> 0; key < length; key++) {
+        if (key in object) {
+          array[key] = object[key];
+        }
+      }
+
+      return array;
+    },
+
+    of: function() {
+      return Array.prototype.slice.call(arguments);
+    }
+  });
+
+  defineProperties(Number, {
+    isInteger: function(value) {
+      return typeof value === 'number' && global_isFinite(value) && 
+        value > -9007199254740992 && value < 9007199254740992 &&
+        Math.floor(value) === value;
+    },
+
+    isNaN: function(value) {
+      return typeof value === 'number' && global_isNaN(value);
+    },
+
+    toInteger: function(value) {
+      var n = +value;
+      if (isNaN(n)) return +0;
+      if (n === 0 || !global_isFinite(n)) return n;
+      return Math.sign(n) * Math.floor(Math.abs(n));
+    }
+  });
+
+  defineProperties(Object, {
+    getOwnPropertyDescriptors: function(subject) {
+      var descs = {};
+      Object.getOwnPropertyNames(subject).forEach(function(propName) {
+        descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+      });
+      return descs;
+    },
+
+    getPropertyDescriptor: function(subject, name) {
+      var pd = Object.getOwnPropertyDescriptor(subject, name);
+      var proto = Object.getPrototypeOf(subject);
+      while (pd === undefined && proto !== null) {
+        pd = Object.getOwnPropertyDescriptor(proto, name);
+        proto = Object.getPrototypeOf(proto);
+      }
+      return pd;
+    },
+
+    getPropertyNames: function(subject, name) {
+      var result = Object.getOwnPropertyNames(subject);
+      var proto = Object.getPrototypeOf(subject);
+      var property;
+      while (proto !== null) {
+        Object.getOwnPropertyNames(proto).forEach(function(property) {
+          if (result.indexOf(property) === -1) {
+            result.push(property);
+          }
+        });
+        proto = Object.getPrototypeOf(proto);
+      }
+      return result;
+    },
+
+    is: function(x, y) {
+      if (x === y) {
+        // 0 === -0, but they are not identical
+        return x !== 0 || 1 / x === 1 / y;
+      }
+
+      // NaN !== NaN, but they are identical.
+      // NaNs are the only non-reflexive value, i.e., if x !== x,
+      // then x is a NaN.
+      // isNaN is broken: it converts its argument to number, so
+      // isNaN("foo") => true
+      return x !== x && y !== y;
+    }
+  });
+  
+  defineProperties(Math, {
+    sign: function(value) {
+      var number = +value;
+      if (global_isNaN(number) || number === 0) return number;
+      return (number < 0) ? -1 : 1;
+    }
+  });
+
+  defineProperties(globall, {
+    Map: (function() {
+      var indexOfIdentical = function(keys, key) {
+        for (var i = 0, length = keys.length; i < length; i++) {
+          if (Object.is(keys[i], key)) return i;
+        }
+        return -1;
+      };
+
+      function Map() {
+        if (!(this instanceof Map)) return new Map;
+        defineProperty(this, 'keys', []);
+        defineProperty(this, 'values', []);
+      }
+
+      defineProperties(Map.prototype, {
+        get: function(key) {
+          var index = indexOfIdentical(this.keys, key);
+          return index < 0 ? undefined : this.values[index];
+        },
+
+        has: function(key) {
+          return indexOfIdentical(this.keys, key) >= 0;
+        },
+
+        set: function(key, value) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) index = keys.length;
+          keys[index] = key;
+          values[index] = value;
+        },
+
+        'delete': function(key) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) return false;
+          keys.splice(index, 1);
+          values.splice(index, 1);
+          return true;
+        }
+      });
+      return Map;
+    })(),
+
+    Set: (function() {
+      function Set() {
+        if (!(this instanceof Set)) return new Set;
+        defineProperty(this, 'map', Map());
+      }
+
+      defineProperties(Set.prototype, {
+        has: function(key) {
+          return this.map.has(key);
+        },
+
+        add: function(key) {
+          this.map.set(key, true);
+        },
+
+        'delete': function(key) {
+          return this.map.delete(key);
+        }
+      });
+
+      return Set;
+    })()
+  });
+  
+  /*defineProperties(globall.Set, {
+    of: function(iterable) {
+      var object = Object(iterable);
+      var set = Set();
+
+      for (var key = 0, length = object.length >>> 0; key < length; key++) {
+        if (key in object && !(set.has(key))) {
+          set.add(object[key]);
+        }
+      }
+
+      return set;
+    }
+  });*/
+});
diff --git a/ajax/libs/es6-shim/0.2.1/es6-shim.min.js b/ajax/libs/es6-shim/0.2.1/es6-shim.min.js
new file mode 100644
index 000000000..5c35be03c
--- /dev/null
+++ b/ajax/libs/es6-shim/0.2.1/es6-shim.min.js
@@ -0,0 +1 @@
+({define:"function"==typeof define?define:function(t){t()}}).define(function(){"use strict";var t="undefined"==typeof global?window:global,e=t.isNaN,n=t.isFinite,r=function(t,e,n){t[e]||Object.defineProperty(t,e,{configurable:!0,enumerable:!1,writable:!0,value:n})},i=function(t,e){Object.keys(e).forEach(function(n){r(t,n,e[n])})};i(String.prototype,{repeat:function(t){return new Array(t+1).join(this)},startsWith:function(t){return 0===this.indexOf(t)},endsWith:function(t){var e=String(t),n=this.lastIndexOf(e);return n>=0&&n===this.length-e.length},contains:function(t){return-1!==this.indexOf(t)},toArray:function(){return this.split("")}}),i(Array,{from:function(t){for(var e=Object(t),n=[],r=0,i=e.length>>>0;i>r;r++)r in e&&(n[r]=e[r]);return n},of:function(){return Array.prototype.slice.call(arguments)}}),i(Number,{isInteger:function(t){return"number"==typeof t&&n(t)&&t>-9007199254740992&&9007199254740992>t&&Math.floor(t)===t},isNaN:function(t){return"number"==typeof t&&e(t)},toInteger:function(t){var e=+t;return isNaN(e)?0:0!==e&&n(e)?Math.sign(e)*Math.floor(Math.abs(e)):e}}),i(Object,{getOwnPropertyDescriptors:function(t){var e={};return Object.getOwnPropertyNames(t).forEach(function(n){e[n]=Object.getOwnPropertyDescriptor(t,n)}),e},getPropertyDescriptor:function(t,e){for(var n=Object.getOwnPropertyDescriptor(t,e),r=Object.getPrototypeOf(t);void 0===n&&null!==r;)n=Object.getOwnPropertyDescriptor(r,e),r=Object.getPrototypeOf(r);return n},getPropertyNames:function(t){for(var e=Object.getOwnPropertyNames(t),n=Object.getPrototypeOf(t);null!==n;)Object.getOwnPropertyNames(n).forEach(function(t){-1===e.indexOf(t)&&e.push(t)}),n=Object.getPrototypeOf(n);return e},is:function(t,e){return t===e?0!==t||1/t===1/e:t!==t&&e!==e}}),i(Math,{sign:function(t){var n=+t;return e(n)||0===n?n:0>n?-1:1}}),i(t,{Map:function(){function t(){return this instanceof t?(r(this,"keys",[]),void r(this,"values",[])):new t}var e=function(t,e){for(var n=0,r=t.length;r>n;n++)if(Object.is(t[n],e))return n;return-1};return i(t.prototype,{get:function(t){var n=e(this.keys,t);return 0>n?void 0:this.values[n]},has:function(t){return e(this.keys,t)>=0},set:function(t,n){var r=this.keys,i=this.values,o=e(r,t);0>o&&(o=r.length),r[o]=t,i[o]=n},"delete":function(t){var n=this.keys,r=this.values,i=e(n,t);return 0>i?!1:(n.splice(i,1),r.splice(i,1),!0)}}),t}(),Set:function(){function t(){return this instanceof t?void r(this,"map",Map()):new t}return i(t.prototype,{has:function(t){return this.map.has(t)},add:function(t){this.map.set(t,!0)},"delete":function(t){return this.map.delete(t)}}),t}()})});
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.3.0/es6-shim.js b/ajax/libs/es6-shim/0.3.0/es6-shim.js
new file mode 100644
index 000000000..d044717ed
--- /dev/null
+++ b/ajax/libs/es6-shim/0.3.0/es6-shim.js
@@ -0,0 +1,234 @@
+({define: (typeof define === 'function')
+    ? define  // RequireJS
+    : function(definition) {definition();} // CommonJS and <script>
+}).define(function() {
+  'use strict';
+
+  var globall = (typeof global === 'undefined') ? window : global;
+  var global_isFinite = globall.isFinite;
+
+  var defineProperty = function(object, name, method) {
+    if (!object[name]) {
+      Object.defineProperty(object, name, {
+        configurable: true,
+        enumerable: false,
+        writable: true,
+        value: method
+      });
+    }
+  };
+
+  var defineProperties = function(object, map) {
+    Object.keys(map).forEach(function(name) {
+      defineProperty(object, name, map[name]);
+    });
+  };
+
+  defineProperties(String.prototype, {
+    repeat: function(times) {
+      return new Array(times + 1).join(this);
+    },
+
+    startsWith: function(substring) {
+      return this.indexOf(substring) === 0;
+    },
+
+    endsWith: function(substring) {
+      var substr = String(substring);
+      var index = this.lastIndexOf(substr)
+      return index >= 0 && index === this.length - substr.length;
+    },
+
+    contains: function(s) {
+      return this.indexOf(s) !== -1;
+    },
+
+    toArray: function() {
+      return this.split('');
+    }
+  });
+
+  defineProperties(Array, {
+    from: function(iterable) {
+      var object = Object(iterable);
+      var array = [];
+
+      for (var key = 0, length = object.length >>> 0; key < length; key++) {
+        if (key in object) {
+          array[key] = object[key];
+        }
+      }
+
+      return array;
+    },
+
+    of: function() {
+      return Array.prototype.slice.call(arguments);
+    }
+  });
+
+  defineProperties(Number, {
+    isFinite: function(value) {
+      return typeof value === 'number' && global_isFinite(value);
+    },
+
+    isInteger: function(value) {
+      return Number.isFinite(value) &&
+        value > -9007199254740992 && value < 9007199254740992 &&
+        Math.floor(value) === value;
+    },
+
+    isNaN: function(value) {
+      return Object.is(value, NaN);
+    },
+
+    toInteger: function(value) {
+      var number = +value;
+      if (Object.is(number, NaN)) return +0;
+      if (number === 0 || !Number.isFinite(number)) return number;
+      return Math.sign(number) * Math.floor(Math.abs(number));
+    }
+  });
+
+  defineProperties(Object, {
+    getOwnPropertyDescriptors: function(subject) {
+      var descs = {};
+      Object.getOwnPropertyNames(subject).forEach(function(propName) {
+        descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+      });
+      return descs;
+    },
+
+    getPropertyDescriptor: function(subject, name) {
+      var pd = Object.getOwnPropertyDescriptor(subject, name);
+      var proto = Object.getPrototypeOf(subject);
+      while (pd === undefined && proto !== null) {
+        pd = Object.getOwnPropertyDescriptor(proto, name);
+        proto = Object.getPrototypeOf(proto);
+      }
+      return pd;
+    },
+
+    getPropertyNames: function(subject, name) {
+      var result = Object.getOwnPropertyNames(subject);
+      var proto = Object.getPrototypeOf(subject);
+      var property;
+      while (proto !== null) {
+        Object.getOwnPropertyNames(proto).forEach(function(property) {
+          if (result.indexOf(property) === -1) {
+            result.push(property);
+          }
+        });
+        proto = Object.getPrototypeOf(proto);
+      }
+      return result;
+    },
+
+    is: function(x, y) {
+      if (x === y) {
+        // 0 === -0, but they are not identical
+        if (x === 0) {
+          return 1 / x === 1 / y;
+        } else {
+          return true;
+        }
+      }
+
+      // NaN !== NaN, but they are identical.
+      // NaNs are the only non-reflexive value, i.e., if x !== x,
+      // then x is a NaN.
+      // isNaN is broken: it converts its argument to number, so
+      // isNaN("foo") => true
+      return x !== x && y !== y;
+    },
+    
+    isnt: function(x, y) {
+      return !Object.is(x, y);
+    }
+  });
+  
+  defineProperties(Math, {
+    sign: function(value) {
+      var number = +value;
+      if (Object.is(number, NaN) || number === 0) return number;
+      return (number < 0) ? -1 : 1;
+    }
+  });
+
+  defineProperties(globall, {
+    Map: (function() {
+      var indexOfIdentical = function(keys, key) {
+        for (var i = 0, length = keys.length; i < length; i++) {
+          if (Object.is(keys[i], key)) return i;
+        }
+        return -1;
+      };
+
+      function Map() {
+        if (!(this instanceof Map)) return new Map;
+        defineProperty(this, 'keys', []);
+        defineProperty(this, 'values', []);
+      }
+
+      defineProperties(Map.prototype, {
+        get: function(key) {
+          var index = indexOfIdentical(this.keys, key);
+          return index < 0 ? undefined : this.values[index];
+        },
+
+        has: function(key) {
+          return indexOfIdentical(this.keys, key) >= 0;
+        },
+
+        set: function(key, value) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) index = keys.length;
+          if (value === void 0) {
+            keys.splice(index, 1);
+            values.splice(index, 1);
+            return;
+          }
+          keys[index] = key;
+          values[index] = value;
+        },
+
+        'delete': function(key) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) return false;
+          keys.splice(index, 1);
+          values.splice(index, 1);
+          return true;
+        }
+      });
+
+      return Map;
+    })(),
+
+    Set: (function() {
+      function Set() {
+        if (!(this instanceof Set)) return new Set;
+        defineProperty(this, 'map', Map());
+      }
+
+      defineProperties(Set.prototype, {
+        has: function(key) {
+          return this.map.has(key);
+        },
+
+        add: function(key) {
+          this.map.set(key, true);
+        },
+
+        'delete': function(key) {
+          return this.map['delete'](key);
+        }
+      });
+
+      return Set;
+    })()
+  });
+});
diff --git a/ajax/libs/es6-shim/0.3.0/es6-shim.min.js b/ajax/libs/es6-shim/0.3.0/es6-shim.min.js
new file mode 100644
index 000000000..fb03ed3bd
--- /dev/null
+++ b/ajax/libs/es6-shim/0.3.0/es6-shim.min.js
@@ -0,0 +1 @@
+({define:"function"==typeof define?define:function(t){t()}}).define(function(){"use strict";var t="undefined"==typeof global?window:global,e=t.isFinite,n=function(t,e,n){t[e]||Object.defineProperty(t,e,{configurable:!0,enumerable:!1,writable:!0,value:n})},r=function(t,e){Object.keys(e).forEach(function(r){n(t,r,e[r])})};r(String.prototype,{repeat:function(t){return new Array(t+1).join(this)},startsWith:function(t){return 0===this.indexOf(t)},endsWith:function(t){var e=String(t),n=this.lastIndexOf(e);return n>=0&&n===this.length-e.length},contains:function(t){return-1!==this.indexOf(t)},toArray:function(){return this.split("")}}),r(Array,{from:function(t){for(var e=Object(t),n=[],r=0,i=e.length>>>0;i>r;r++)r in e&&(n[r]=e[r]);return n},of:function(){return Array.prototype.slice.call(arguments)}}),r(Number,{isFinite:function(t){return"number"==typeof t&&e(t)},isInteger:function(t){return Number.isFinite(t)&&t>-9007199254740992&&9007199254740992>t&&Math.floor(t)===t},isNaN:function(t){return Object.is(t,0/0)},toInteger:function(t){var e=+t;return Object.is(e,0/0)?0:0!==e&&Number.isFinite(e)?Math.sign(e)*Math.floor(Math.abs(e)):e}}),r(Object,{getOwnPropertyDescriptors:function(t){var e={};return Object.getOwnPropertyNames(t).forEach(function(n){e[n]=Object.getOwnPropertyDescriptor(t,n)}),e},getPropertyDescriptor:function(t,e){for(var n=Object.getOwnPropertyDescriptor(t,e),r=Object.getPrototypeOf(t);void 0===n&&null!==r;)n=Object.getOwnPropertyDescriptor(r,e),r=Object.getPrototypeOf(r);return n},getPropertyNames:function(t){for(var e=Object.getOwnPropertyNames(t),n=Object.getPrototypeOf(t);null!==n;)Object.getOwnPropertyNames(n).forEach(function(t){-1===e.indexOf(t)&&e.push(t)}),n=Object.getPrototypeOf(n);return e},is:function(t,e){return t===e?0===t?1/t===1/e:!0:t!==t&&e!==e},isnt:function(t,e){return!Object.is(t,e)}}),r(Math,{sign:function(t){var e=+t;return Object.is(e,0/0)||0===e?e:0>e?-1:1}}),r(t,{Map:function(){function t(){return this instanceof t?(n(this,"keys",[]),void n(this,"values",[])):new t}var e=function(t,e){for(var n=0,r=t.length;r>n;n++)if(Object.is(t[n],e))return n;return-1};return r(t.prototype,{get:function(t){var n=e(this.keys,t);return 0>n?void 0:this.values[n]},has:function(t){return e(this.keys,t)>=0},set:function(t,n){var r=this.keys,i=this.values,o=e(r,t);return 0>o&&(o=r.length),void 0===n?(r.splice(o,1),void i.splice(o,1)):(r[o]=t,void(i[o]=n))},"delete":function(t){var n=this.keys,r=this.values,i=e(n,t);return 0>i?!1:(n.splice(i,1),r.splice(i,1),!0)}}),t}(),Set:function(){function t(){return this instanceof t?void n(this,"map",Map()):new t}return r(t.prototype,{has:function(t){return this.map.has(t)},add:function(t){this.map.set(t,!0)},"delete":function(t){return this.map["delete"](t)}}),t}()})});
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.3.1/es6-shim.js b/ajax/libs/es6-shim/0.3.1/es6-shim.js
new file mode 100644
index 000000000..d044717ed
--- /dev/null
+++ b/ajax/libs/es6-shim/0.3.1/es6-shim.js
@@ -0,0 +1,234 @@
+({define: (typeof define === 'function')
+    ? define  // RequireJS
+    : function(definition) {definition();} // CommonJS and <script>
+}).define(function() {
+  'use strict';
+
+  var globall = (typeof global === 'undefined') ? window : global;
+  var global_isFinite = globall.isFinite;
+
+  var defineProperty = function(object, name, method) {
+    if (!object[name]) {
+      Object.defineProperty(object, name, {
+        configurable: true,
+        enumerable: false,
+        writable: true,
+        value: method
+      });
+    }
+  };
+
+  var defineProperties = function(object, map) {
+    Object.keys(map).forEach(function(name) {
+      defineProperty(object, name, map[name]);
+    });
+  };
+
+  defineProperties(String.prototype, {
+    repeat: function(times) {
+      return new Array(times + 1).join(this);
+    },
+
+    startsWith: function(substring) {
+      return this.indexOf(substring) === 0;
+    },
+
+    endsWith: function(substring) {
+      var substr = String(substring);
+      var index = this.lastIndexOf(substr)
+      return index >= 0 && index === this.length - substr.length;
+    },
+
+    contains: function(s) {
+      return this.indexOf(s) !== -1;
+    },
+
+    toArray: function() {
+      return this.split('');
+    }
+  });
+
+  defineProperties(Array, {
+    from: function(iterable) {
+      var object = Object(iterable);
+      var array = [];
+
+      for (var key = 0, length = object.length >>> 0; key < length; key++) {
+        if (key in object) {
+          array[key] = object[key];
+        }
+      }
+
+      return array;
+    },
+
+    of: function() {
+      return Array.prototype.slice.call(arguments);
+    }
+  });
+
+  defineProperties(Number, {
+    isFinite: function(value) {
+      return typeof value === 'number' && global_isFinite(value);
+    },
+
+    isInteger: function(value) {
+      return Number.isFinite(value) &&
+        value > -9007199254740992 && value < 9007199254740992 &&
+        Math.floor(value) === value;
+    },
+
+    isNaN: function(value) {
+      return Object.is(value, NaN);
+    },
+
+    toInteger: function(value) {
+      var number = +value;
+      if (Object.is(number, NaN)) return +0;
+      if (number === 0 || !Number.isFinite(number)) return number;
+      return Math.sign(number) * Math.floor(Math.abs(number));
+    }
+  });
+
+  defineProperties(Object, {
+    getOwnPropertyDescriptors: function(subject) {
+      var descs = {};
+      Object.getOwnPropertyNames(subject).forEach(function(propName) {
+        descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+      });
+      return descs;
+    },
+
+    getPropertyDescriptor: function(subject, name) {
+      var pd = Object.getOwnPropertyDescriptor(subject, name);
+      var proto = Object.getPrototypeOf(subject);
+      while (pd === undefined && proto !== null) {
+        pd = Object.getOwnPropertyDescriptor(proto, name);
+        proto = Object.getPrototypeOf(proto);
+      }
+      return pd;
+    },
+
+    getPropertyNames: function(subject, name) {
+      var result = Object.getOwnPropertyNames(subject);
+      var proto = Object.getPrototypeOf(subject);
+      var property;
+      while (proto !== null) {
+        Object.getOwnPropertyNames(proto).forEach(function(property) {
+          if (result.indexOf(property) === -1) {
+            result.push(property);
+          }
+        });
+        proto = Object.getPrototypeOf(proto);
+      }
+      return result;
+    },
+
+    is: function(x, y) {
+      if (x === y) {
+        // 0 === -0, but they are not identical
+        if (x === 0) {
+          return 1 / x === 1 / y;
+        } else {
+          return true;
+        }
+      }
+
+      // NaN !== NaN, but they are identical.
+      // NaNs are the only non-reflexive value, i.e., if x !== x,
+      // then x is a NaN.
+      // isNaN is broken: it converts its argument to number, so
+      // isNaN("foo") => true
+      return x !== x && y !== y;
+    },
+    
+    isnt: function(x, y) {
+      return !Object.is(x, y);
+    }
+  });
+  
+  defineProperties(Math, {
+    sign: function(value) {
+      var number = +value;
+      if (Object.is(number, NaN) || number === 0) return number;
+      return (number < 0) ? -1 : 1;
+    }
+  });
+
+  defineProperties(globall, {
+    Map: (function() {
+      var indexOfIdentical = function(keys, key) {
+        for (var i = 0, length = keys.length; i < length; i++) {
+          if (Object.is(keys[i], key)) return i;
+        }
+        return -1;
+      };
+
+      function Map() {
+        if (!(this instanceof Map)) return new Map;
+        defineProperty(this, 'keys', []);
+        defineProperty(this, 'values', []);
+      }
+
+      defineProperties(Map.prototype, {
+        get: function(key) {
+          var index = indexOfIdentical(this.keys, key);
+          return index < 0 ? undefined : this.values[index];
+        },
+
+        has: function(key) {
+          return indexOfIdentical(this.keys, key) >= 0;
+        },
+
+        set: function(key, value) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) index = keys.length;
+          if (value === void 0) {
+            keys.splice(index, 1);
+            values.splice(index, 1);
+            return;
+          }
+          keys[index] = key;
+          values[index] = value;
+        },
+
+        'delete': function(key) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) return false;
+          keys.splice(index, 1);
+          values.splice(index, 1);
+          return true;
+        }
+      });
+
+      return Map;
+    })(),
+
+    Set: (function() {
+      function Set() {
+        if (!(this instanceof Set)) return new Set;
+        defineProperty(this, 'map', Map());
+      }
+
+      defineProperties(Set.prototype, {
+        has: function(key) {
+          return this.map.has(key);
+        },
+
+        add: function(key) {
+          this.map.set(key, true);
+        },
+
+        'delete': function(key) {
+          return this.map['delete'](key);
+        }
+      });
+
+      return Set;
+    })()
+  });
+});
diff --git a/ajax/libs/es6-shim/0.3.1/es6-shim.min.js b/ajax/libs/es6-shim/0.3.1/es6-shim.min.js
new file mode 100644
index 000000000..fb03ed3bd
--- /dev/null
+++ b/ajax/libs/es6-shim/0.3.1/es6-shim.min.js
@@ -0,0 +1 @@
+({define:"function"==typeof define?define:function(t){t()}}).define(function(){"use strict";var t="undefined"==typeof global?window:global,e=t.isFinite,n=function(t,e,n){t[e]||Object.defineProperty(t,e,{configurable:!0,enumerable:!1,writable:!0,value:n})},r=function(t,e){Object.keys(e).forEach(function(r){n(t,r,e[r])})};r(String.prototype,{repeat:function(t){return new Array(t+1).join(this)},startsWith:function(t){return 0===this.indexOf(t)},endsWith:function(t){var e=String(t),n=this.lastIndexOf(e);return n>=0&&n===this.length-e.length},contains:function(t){return-1!==this.indexOf(t)},toArray:function(){return this.split("")}}),r(Array,{from:function(t){for(var e=Object(t),n=[],r=0,i=e.length>>>0;i>r;r++)r in e&&(n[r]=e[r]);return n},of:function(){return Array.prototype.slice.call(arguments)}}),r(Number,{isFinite:function(t){return"number"==typeof t&&e(t)},isInteger:function(t){return Number.isFinite(t)&&t>-9007199254740992&&9007199254740992>t&&Math.floor(t)===t},isNaN:function(t){return Object.is(t,0/0)},toInteger:function(t){var e=+t;return Object.is(e,0/0)?0:0!==e&&Number.isFinite(e)?Math.sign(e)*Math.floor(Math.abs(e)):e}}),r(Object,{getOwnPropertyDescriptors:function(t){var e={};return Object.getOwnPropertyNames(t).forEach(function(n){e[n]=Object.getOwnPropertyDescriptor(t,n)}),e},getPropertyDescriptor:function(t,e){for(var n=Object.getOwnPropertyDescriptor(t,e),r=Object.getPrototypeOf(t);void 0===n&&null!==r;)n=Object.getOwnPropertyDescriptor(r,e),r=Object.getPrototypeOf(r);return n},getPropertyNames:function(t){for(var e=Object.getOwnPropertyNames(t),n=Object.getPrototypeOf(t);null!==n;)Object.getOwnPropertyNames(n).forEach(function(t){-1===e.indexOf(t)&&e.push(t)}),n=Object.getPrototypeOf(n);return e},is:function(t,e){return t===e?0===t?1/t===1/e:!0:t!==t&&e!==e},isnt:function(t,e){return!Object.is(t,e)}}),r(Math,{sign:function(t){var e=+t;return Object.is(e,0/0)||0===e?e:0>e?-1:1}}),r(t,{Map:function(){function t(){return this instanceof t?(n(this,"keys",[]),void n(this,"values",[])):new t}var e=function(t,e){for(var n=0,r=t.length;r>n;n++)if(Object.is(t[n],e))return n;return-1};return r(t.prototype,{get:function(t){var n=e(this.keys,t);return 0>n?void 0:this.values[n]},has:function(t){return e(this.keys,t)>=0},set:function(t,n){var r=this.keys,i=this.values,o=e(r,t);return 0>o&&(o=r.length),void 0===n?(r.splice(o,1),void i.splice(o,1)):(r[o]=t,void(i[o]=n))},"delete":function(t){var n=this.keys,r=this.values,i=e(n,t);return 0>i?!1:(n.splice(i,1),r.splice(i,1),!0)}}),t}(),Set:function(){function t(){return this instanceof t?void n(this,"map",Map()):new t}return r(t.prototype,{has:function(t){return this.map.has(t)},add:function(t){this.map.set(t,!0)},"delete":function(t){return this.map["delete"](t)}}),t}()})});
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.4.0/es6-shim.js b/ajax/libs/es6-shim/0.4.0/es6-shim.js
new file mode 100644
index 000000000..93cd96d26
--- /dev/null
+++ b/ajax/libs/es6-shim/0.4.0/es6-shim.js
@@ -0,0 +1,309 @@
+({define: (typeof define === 'function')
+    ? define  // RequireJS
+    : function(definition) {definition();} // CommonJS and <script>
+}).define(function() {
+  'use strict';
+
+  var globall = (typeof global === 'undefined') ? window : global;
+  var global_isFinite = globall.isFinite;
+  var factorial = function(value) {
+    var result = 1;
+    for (var i = 2; i <= value; i++) {
+      result *= i;
+    }
+    return result;
+  };
+
+  var defineProperty = function(object, name, method) {
+    if (!object[name]) {
+      Object.defineProperty(object, name, {
+        configurable: true,
+        enumerable: false,
+        writable: true,
+        value: method
+      });
+    }
+  };
+
+  var defineProperties = function(object, map) {
+    Object.keys(map).forEach(function(name) {
+      defineProperty(object, name, map[name]);
+    });
+  };
+
+  defineProperties(String.prototype, {
+    repeat: function(times) {
+      return new Array(times + 1).join(this);
+    },
+
+    startsWith: function(substring) {
+      return this.indexOf(substring) === 0;
+    },
+
+    endsWith: function(substring) {
+      var substr = String(substring);
+      var index = this.lastIndexOf(substr)
+      return index >= 0 && index === this.length - substr.length;
+    },
+
+    contains: function(s) {
+      return this.indexOf(s) !== -1;
+    },
+
+    toArray: function() {
+      return this.split('');
+    }
+  });
+
+  defineProperties(Array, {
+    from: function(iterable) {
+      var object = Object(iterable);
+      var array = [];
+
+      for (var key = 0, length = object.length >>> 0; key < length; key++) {
+        if (key in object) {
+          array[key] = object[key];
+        }
+      }
+
+      return array;
+    },
+
+    of: function() {
+      return Array.prototype.slice.call(arguments);
+    }
+  });
+
+  defineProperties(Number, {
+    isFinite: function(value) {
+      return typeof value === 'number' && global_isFinite(value);
+    },
+
+    isInteger: function(value) {
+      return Number.isFinite(value) &&
+        value > -9007199254740992 && value < 9007199254740992 &&
+        Math.floor(value) === value;
+    },
+
+    isNaN: function(value) {
+      return Object.is(value, NaN);
+    },
+
+    toInteger: function(value) {
+      var number = +value;
+      if (Object.is(number, NaN)) return +0;
+      if (number === 0 || !Number.isFinite(number)) return number;
+      return Math.sign(number) * Math.floor(Math.abs(number));
+    }
+  });
+
+  defineProperties(Object, {
+    getOwnPropertyDescriptors: function(subject) {
+      var descs = {};
+      Object.getOwnPropertyNames(subject).forEach(function(propName) {
+        descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+      });
+      return descs;
+    },
+
+    getPropertyDescriptor: function(subject, name) {
+      var pd = Object.getOwnPropertyDescriptor(subject, name);
+      var proto = Object.getPrototypeOf(subject);
+      while (pd === undefined && proto !== null) {
+        pd = Object.getOwnPropertyDescriptor(proto, name);
+        proto = Object.getPrototypeOf(proto);
+      }
+      return pd;
+    },
+
+    getPropertyNames: function(subject, name) {
+      var result = Object.getOwnPropertyNames(subject);
+      var proto = Object.getPrototypeOf(subject);
+      var property;
+      while (proto !== null) {
+        Object.getOwnPropertyNames(proto).forEach(function(property) {
+          if (result.indexOf(property) === -1) {
+            result.push(property);
+          }
+        });
+        proto = Object.getPrototypeOf(proto);
+      }
+      return result;
+    },
+
+    is: function(x, y) {
+      if (x === y) {
+        // 0 === -0, but they are not identical
+        if (x === 0) {
+          return 1 / x === 1 / y;
+        } else {
+          return true;
+        }
+      }
+
+      // NaN !== NaN, but they are identical.
+      // NaNs are the only non-reflexive value, i.e., if x !== x,
+      // then x is a NaN.
+      // isNaN is broken: it converts its argument to number, so
+      // isNaN("foo") => true
+      return x !== x && y !== y;
+    },
+    
+    isnt: function(x, y) {
+      return !Object.is(x, y);
+    }
+  });  
+  
+  defineProperties(Math, {
+    acosh: function(value) {
+      return Math.log(value + Math.sqrt(value * value - 1));
+    },
+    
+    asinh: function(value) {
+      return Math.log(value + Math.sqrt(value * value + 1));
+    },
+    
+    atanh: function(value) {
+      return 0.5 * Math.log((1 + value) / (1 - value));
+    },
+
+    cosh: function(value) {
+      if (value < 0) value = -value;
+      if (value > 21) return Math.exp(value) / 2;
+      return (Math.exp(value) + Math.exp(-value)) / 2;
+    },
+    
+    expm1: function(value) {
+      var result = 0;
+      var n = 50;
+      for (var i = 1; i < n; i++) {
+        result += Math.pow(value, i) / factorial(i);
+      }
+      return result;
+    },
+    
+    hypot: function(x, y) {
+      return Math.sqrt(x * x + y * y) || 0;
+    },
+
+    log2: function(value) {
+      return Math.log(value) * (1 / Math.LN2);
+    },
+    
+    log10: function(value) {
+      return Math.log(value) * (1 / Math.LN10);
+    },
+    
+    log1p: function(value) {
+      var result = 0;
+      var n = 50;
+
+      if (value <= -1) return -Infinity;
+      if (value < 0 || value > 1) return Math.log(1 + value);
+      for (var i = 1; i < n; i++) {
+        if ((i % 2) === 0) {
+          result -= Math.pow(value, i) / i;
+        } else {
+          result += Math.pow(value, i) / i;
+        }
+      }
+
+      return result;
+    },
+
+    sign: function(value) {
+      var number = +value;
+      if (Object.is(number, NaN) || number === 0) return number;
+      return (number < 0) ? -1 : 1;
+    },
+    
+    sinh: function(value) {
+      return (Math.exp(value) - Math.exp(-value)) / 2;
+    },
+    
+    tanh: function(value) {
+      return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+    },
+    
+    trunc: function(value) {
+      return ~~value;
+    }
+  });
+
+  defineProperties(globall, {
+    Map: (function() {
+      var indexOfIdentical = function(keys, key) {
+        for (var i = 0, length = keys.length; i < length; i++) {
+          if (Object.is(keys[i], key)) return i;
+        }
+        return -1;
+      };
+
+      function Map() {
+        if (!(this instanceof Map)) return new Map;
+        defineProperty(this, 'keys', []);
+        defineProperty(this, 'values', []);
+      }
+
+      defineProperties(Map.prototype, {
+        get: function(key) {
+          var index = indexOfIdentical(this.keys, key);
+          return index < 0 ? undefined : this.values[index];
+        },
+
+        has: function(key) {
+          return indexOfIdentical(this.keys, key) >= 0;
+        },
+
+        set: function(key, value) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) index = keys.length;
+          if (value === void 0) {
+            keys.splice(index, 1);
+            values.splice(index, 1);
+            return;
+          }
+          keys[index] = key;
+          values[index] = value;
+        },
+
+        'delete': function(key) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) return false;
+          keys.splice(index, 1);
+          values.splice(index, 1);
+          return true;
+        }
+      });
+
+      return Map;
+    })(),
+
+    Set: (function() {
+      function Set() {
+        if (!(this instanceof Set)) return new Set;
+        defineProperty(this, 'map', Map());
+      }
+
+      defineProperties(Set.prototype, {
+        has: function(key) {
+          return this.map.has(key);
+        },
+
+        add: function(key) {
+          this.map.set(key, true);
+        },
+
+        'delete': function(key) {
+          return this.map['delete'](key);
+        }
+      });
+
+      return Set;
+    })()
+  });
+});
diff --git a/ajax/libs/es6-shim/0.4.0/es6-shim.min.js b/ajax/libs/es6-shim/0.4.0/es6-shim.min.js
new file mode 100644
index 000000000..89fc22456
--- /dev/null
+++ b/ajax/libs/es6-shim/0.4.0/es6-shim.min.js
@@ -0,0 +1 @@
+({define:"function"==typeof define?define:function(t){t()}}).define(function(){"use strict";var t="undefined"==typeof global?window:global,n=t.isFinite,e=function(t){for(var n=1,e=2;t>=e;e++)n*=e;return n},r=function(t,n,e){t[n]||Object.defineProperty(t,n,{configurable:!0,enumerable:!1,writable:!0,value:e})},i=function(t,n){Object.keys(n).forEach(function(e){r(t,e,n[e])})};i(String.prototype,{repeat:function(t){return new Array(t+1).join(this)},startsWith:function(t){return 0===this.indexOf(t)},endsWith:function(t){var n=String(t),e=this.lastIndexOf(n);return e>=0&&e===this.length-n.length},contains:function(t){return-1!==this.indexOf(t)},toArray:function(){return this.split("")}}),i(Array,{from:function(t){for(var n=Object(t),e=[],r=0,i=n.length>>>0;i>r;r++)r in n&&(e[r]=n[r]);return e},of:function(){return Array.prototype.slice.call(arguments)}}),i(Number,{isFinite:function(t){return"number"==typeof t&&n(t)},isInteger:function(t){return Number.isFinite(t)&&t>-9007199254740992&&9007199254740992>t&&Math.floor(t)===t},isNaN:function(t){return Object.is(t,0/0)},toInteger:function(t){var n=+t;return Object.is(n,0/0)?0:0!==n&&Number.isFinite(n)?Math.sign(n)*Math.floor(Math.abs(n)):n}}),i(Object,{getOwnPropertyDescriptors:function(t){var n={};return Object.getOwnPropertyNames(t).forEach(function(e){n[e]=Object.getOwnPropertyDescriptor(t,e)}),n},getPropertyDescriptor:function(t,n){for(var e=Object.getOwnPropertyDescriptor(t,n),r=Object.getPrototypeOf(t);void 0===e&&null!==r;)e=Object.getOwnPropertyDescriptor(r,n),r=Object.getPrototypeOf(r);return e},getPropertyNames:function(t){for(var n=Object.getOwnPropertyNames(t),e=Object.getPrototypeOf(t);null!==e;)Object.getOwnPropertyNames(e).forEach(function(t){-1===n.indexOf(t)&&n.push(t)}),e=Object.getPrototypeOf(e);return n},is:function(t,n){return t===n?0===t?1/t===1/n:!0:t!==t&&n!==n},isnt:function(t,n){return!Object.is(t,n)}}),i(Math,{acosh:function(t){return Math.log(t+Math.sqrt(t*t-1))},asinh:function(t){return Math.log(t+Math.sqrt(t*t+1))},atanh:function(t){return.5*Math.log((1+t)/(1-t))},cosh:function(t){return 0>t&&(t=-t),t>21?Math.exp(t)/2:(Math.exp(t)+Math.exp(-t))/2},expm1:function(t){for(var n=0,r=50,i=1;r>i;i++)n+=Math.pow(t,i)/e(i);return n},hypot:function(t,n){return Math.sqrt(t*t+n*n)||0},log2:function(t){return Math.log(t)*(1/Math.LN2)},log10:function(t){return Math.log(t)*(1/Math.LN10)},log1p:function(t){var n=0,e=50;if(-1>=t)return-1/0;if(0>t||t>1)return Math.log(1+t);for(var r=1;e>r;r++)r%2===0?n-=Math.pow(t,r)/r:n+=Math.pow(t,r)/r;return n},sign:function(t){var n=+t;return Object.is(n,0/0)||0===n?n:0>n?-1:1},sinh:function(t){return(Math.exp(t)-Math.exp(-t))/2},tanh:function(t){return(Math.exp(t)-Math.exp(-t))/(Math.exp(t)+Math.exp(-t))},trunc:function(t){return~~t}}),i(t,{Map:function(){function t(){return this instanceof t?(r(this,"keys",[]),void r(this,"values",[])):new t}var n=function(t,n){for(var e=0,r=t.length;r>e;e++)if(Object.is(t[e],n))return e;return-1};return i(t.prototype,{get:function(t){var e=n(this.keys,t);return 0>e?void 0:this.values[e]},has:function(t){return n(this.keys,t)>=0},set:function(t,e){var r=this.keys,i=this.values,o=n(r,t);return 0>o&&(o=r.length),void 0===e?(r.splice(o,1),void i.splice(o,1)):(r[o]=t,void(i[o]=e))},"delete":function(t){var e=this.keys,r=this.values,i=n(e,t);return 0>i?!1:(e.splice(i,1),r.splice(i,1),!0)}}),t}(),Set:function(){function t(){return this instanceof t?void r(this,"map",Map()):new t}return i(t.prototype,{has:function(t){return this.map.has(t)},add:function(t){this.map.set(t,!0)},"delete":function(t){return this.map["delete"](t)}}),t}()})});
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.4.1/es6-shim.js b/ajax/libs/es6-shim/0.4.1/es6-shim.js
new file mode 100644
index 000000000..06852464f
--- /dev/null
+++ b/ajax/libs/es6-shim/0.4.1/es6-shim.js
@@ -0,0 +1,308 @@
+({define: (typeof define === 'function')
+    ? define  // RequireJS
+    : function(definition) {definition();} // CommonJS and <script>
+}).define(function() {
+  'use strict';
+
+  var globall = (typeof global === 'undefined') ? window : global;
+  var global_isFinite = globall.isFinite;
+  var factorial = function(value) {
+    var result = 1;
+    for (var i = 2; i <= value; i++) {
+      result *= i;
+    }
+    return result;
+  };
+
+  var defineProperty = function(object, name, method) {
+    if (!object[name]) {
+      Object.defineProperty(object, name, {
+        configurable: true,
+        enumerable: false,
+        writable: true,
+        value: method
+      });
+    }
+  };
+
+  var defineProperties = function(object, map) {
+    Object.keys(map).forEach(function(name) {
+      defineProperty(object, name, map[name]);
+    });
+  };
+
+  defineProperties(String.prototype, {
+    repeat: function(times) {
+      return new Array(times + 1).join(this);
+    },
+
+    startsWith: function(substring) {
+      return this.lastIndexOf(substring, 0) === 0;
+    },
+
+    endsWith: function(substring) {
+      var startFrom = this.length - String(substring).length;
+      return startFrom >= 0 && this.indexOf(substring, startFrom) === startFrom;
+    },
+
+    contains: function(substring) {
+      return this.indexOf(substring) !== -1;
+    },
+
+    toArray: function() {
+      return this.split('');
+    }
+  });
+
+  defineProperties(Array, {
+    from: function(iterable) {
+      var object = Object(iterable);
+      var array = [];
+
+      for (var key = 0, length = object.length >>> 0; key < length; key++) {
+        if (key in object) {
+          array[key] = object[key];
+        }
+      }
+
+      return array;
+    },
+
+    of: function() {
+      return Array.prototype.slice.call(arguments);
+    }
+  });
+
+  defineProperties(Number, {
+    isFinite: function(value) {
+      return typeof value === 'number' && global_isFinite(value);
+    },
+
+    isInteger: function(value) {
+      return Number.isFinite(value) &&
+        value >= -9007199254740992 && value <= 9007199254740992 &&
+        Math.floor(value) === value;
+    },
+
+    isNaN: function(value) {
+      return Object.is(value, NaN);
+    },
+
+    toInteger: function(value) {
+      var number = +value;
+      if (Object.is(number, NaN)) return +0;
+      if (number === 0 || !Number.isFinite(number)) return number;
+      return Math.sign(number) * Math.floor(Math.abs(number));
+    }
+  });
+
+  defineProperties(Object, {
+    getOwnPropertyDescriptors: function(subject) {
+      var descs = {};
+      Object.getOwnPropertyNames(subject).forEach(function(propName) {
+        descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+      });
+      return descs;
+    },
+
+    getPropertyDescriptor: function(subject, name) {
+      var pd = Object.getOwnPropertyDescriptor(subject, name);
+      var proto = Object.getPrototypeOf(subject);
+      while (pd === undefined && proto !== null) {
+        pd = Object.getOwnPropertyDescriptor(proto, name);
+        proto = Object.getPrototypeOf(proto);
+      }
+      return pd;
+    },
+
+    getPropertyNames: function(subject, name) {
+      var result = Object.getOwnPropertyNames(subject);
+      var proto = Object.getPrototypeOf(subject);
+      var property;
+      while (proto !== null) {
+        Object.getOwnPropertyNames(proto).forEach(function(property) {
+          if (result.indexOf(property) === -1) {
+            result.push(property);
+          }
+        });
+        proto = Object.getPrototypeOf(proto);
+      }
+      return result;
+    },
+
+    is: function(x, y) {
+      if (x === y) {
+        // 0 === -0, but they are not identical
+        if (x === 0) {
+          return 1 / x === 1 / y;
+        } else {
+          return true;
+        }
+      }
+
+      // NaN !== NaN, but they are identical.
+      // NaNs are the only non-reflexive value, i.e., if x !== x,
+      // then x is a NaN.
+      // isNaN is broken: it converts its argument to number, so
+      // isNaN("foo") => true
+      return x !== x && y !== y;
+    },
+    
+    isnt: function(x, y) {
+      return !Object.is(x, y);
+    }
+  });  
+  
+  defineProperties(Math, {
+    acosh: function(value) {
+      return Math.log(value + Math.sqrt(value * value - 1));
+    },
+    
+    asinh: function(value) {
+      return Math.log(value + Math.sqrt(value * value + 1));
+    },
+    
+    atanh: function(value) {
+      return 0.5 * Math.log((1 + value) / (1 - value));
+    },
+
+    cosh: function(value) {
+      if (value < 0) value = -value;
+      if (value > 21) return Math.exp(value) / 2;
+      return (Math.exp(value) + Math.exp(-value)) / 2;
+    },
+    
+    expm1: function(value) {
+      var result = 0;
+      var n = 50;
+      for (var i = 1; i < n; i++) {
+        result += Math.pow(value, i) / factorial(i);
+      }
+      return result;
+    },
+    
+    hypot: function(x, y) {
+      return Math.sqrt(x * x + y * y) || 0;
+    },
+
+    log2: function(value) {
+      return Math.log(value) * (1 / Math.LN2);
+    },
+    
+    log10: function(value) {
+      return Math.log(value) * (1 / Math.LN10);
+    },
+    
+    log1p: function(value) {
+      var result = 0;
+      var n = 50;
+
+      if (value <= -1) return -Infinity;
+      if (value < 0 || value > 1) return Math.log(1 + value);
+      for (var i = 1; i < n; i++) {
+        if ((i % 2) === 0) {
+          result -= Math.pow(value, i) / i;
+        } else {
+          result += Math.pow(value, i) / i;
+        }
+      }
+
+      return result;
+    },
+
+    sign: function(value) {
+      var number = +value;
+      if (Object.is(number, NaN) || number === 0) return number;
+      return (number < 0) ? -1 : 1;
+    },
+    
+    sinh: function(value) {
+      return (Math.exp(value) - Math.exp(-value)) / 2;
+    },
+    
+    tanh: function(value) {
+      return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+    },
+    
+    trunc: function(value) {
+      return ~~value;
+    }
+  });
+
+  defineProperties(globall, {
+    Map: (function() {
+      var indexOfIdentical = function(keys, key) {
+        for (var i = 0, length = keys.length; i < length; i++) {
+          if (Object.is(keys[i], key)) return i;
+        }
+        return -1;
+      };
+
+      function Map() {
+        if (!(this instanceof Map)) return new Map;
+        defineProperty(this, 'keys', []);
+        defineProperty(this, 'values', []);
+      }
+
+      defineProperties(Map.prototype, {
+        get: function(key) {
+          var index = indexOfIdentical(this.keys, key);
+          return index < 0 ? undefined : this.values[index];
+        },
+
+        has: function(key) {
+          return indexOfIdentical(this.keys, key) >= 0;
+        },
+
+        set: function(key, value) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) index = keys.length;
+          if (value === void 0) {
+            keys.splice(index, 1);
+            values.splice(index, 1);
+            return;
+          }
+          keys[index] = key;
+          values[index] = value;
+        },
+
+        'delete': function(key) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) return false;
+          keys.splice(index, 1);
+          values.splice(index, 1);
+          return true;
+        }
+      });
+
+      return Map;
+    })(),
+
+    Set: (function() {
+      function Set() {
+        if (!(this instanceof Set)) return new Set;
+        defineProperty(this, 'map', Map());
+      }
+
+      defineProperties(Set.prototype, {
+        has: function(key) {
+          return this.map.has(key);
+        },
+
+        add: function(key) {
+          this.map.set(key, true);
+        },
+
+        'delete': function(key) {
+          return this.map['delete'](key);
+        }
+      });
+
+      return Set;
+    })()
+  });
+});
diff --git a/ajax/libs/es6-shim/0.4.1/es6-shim.min.js b/ajax/libs/es6-shim/0.4.1/es6-shim.min.js
new file mode 100644
index 000000000..e537de78f
--- /dev/null
+++ b/ajax/libs/es6-shim/0.4.1/es6-shim.min.js
@@ -0,0 +1 @@
+({define:"function"==typeof define?define:function(t){t()}}).define(function(){"use strict";var t="undefined"==typeof global?window:global,n=t.isFinite,e=function(t){for(var n=1,e=2;t>=e;e++)n*=e;return n},r=function(t,n,e){t[n]||Object.defineProperty(t,n,{configurable:!0,enumerable:!1,writable:!0,value:e})},i=function(t,n){Object.keys(n).forEach(function(e){r(t,e,n[e])})};i(String.prototype,{repeat:function(t){return new Array(t+1).join(this)},startsWith:function(t){return 0===this.lastIndexOf(t,0)},endsWith:function(t){var n=this.length-String(t).length;return n>=0&&this.indexOf(t,n)===n},contains:function(t){return-1!==this.indexOf(t)},toArray:function(){return this.split("")}}),i(Array,{from:function(t){for(var n=Object(t),e=[],r=0,i=n.length>>>0;i>r;r++)r in n&&(e[r]=n[r]);return e},of:function(){return Array.prototype.slice.call(arguments)}}),i(Number,{isFinite:function(t){return"number"==typeof t&&n(t)},isInteger:function(t){return Number.isFinite(t)&&t>=-9007199254740992&&9007199254740992>=t&&Math.floor(t)===t},isNaN:function(t){return Object.is(t,0/0)},toInteger:function(t){var n=+t;return Object.is(n,0/0)?0:0!==n&&Number.isFinite(n)?Math.sign(n)*Math.floor(Math.abs(n)):n}}),i(Object,{getOwnPropertyDescriptors:function(t){var n={};return Object.getOwnPropertyNames(t).forEach(function(e){n[e]=Object.getOwnPropertyDescriptor(t,e)}),n},getPropertyDescriptor:function(t,n){for(var e=Object.getOwnPropertyDescriptor(t,n),r=Object.getPrototypeOf(t);void 0===e&&null!==r;)e=Object.getOwnPropertyDescriptor(r,n),r=Object.getPrototypeOf(r);return e},getPropertyNames:function(t){for(var n=Object.getOwnPropertyNames(t),e=Object.getPrototypeOf(t);null!==e;)Object.getOwnPropertyNames(e).forEach(function(t){-1===n.indexOf(t)&&n.push(t)}),e=Object.getPrototypeOf(e);return n},is:function(t,n){return t===n?0===t?1/t===1/n:!0:t!==t&&n!==n},isnt:function(t,n){return!Object.is(t,n)}}),i(Math,{acosh:function(t){return Math.log(t+Math.sqrt(t*t-1))},asinh:function(t){return Math.log(t+Math.sqrt(t*t+1))},atanh:function(t){return.5*Math.log((1+t)/(1-t))},cosh:function(t){return 0>t&&(t=-t),t>21?Math.exp(t)/2:(Math.exp(t)+Math.exp(-t))/2},expm1:function(t){for(var n=0,r=50,i=1;r>i;i++)n+=Math.pow(t,i)/e(i);return n},hypot:function(t,n){return Math.sqrt(t*t+n*n)||0},log2:function(t){return Math.log(t)*(1/Math.LN2)},log10:function(t){return Math.log(t)*(1/Math.LN10)},log1p:function(t){var n=0,e=50;if(-1>=t)return-1/0;if(0>t||t>1)return Math.log(1+t);for(var r=1;e>r;r++)r%2===0?n-=Math.pow(t,r)/r:n+=Math.pow(t,r)/r;return n},sign:function(t){var n=+t;return Object.is(n,0/0)||0===n?n:0>n?-1:1},sinh:function(t){return(Math.exp(t)-Math.exp(-t))/2},tanh:function(t){return(Math.exp(t)-Math.exp(-t))/(Math.exp(t)+Math.exp(-t))},trunc:function(t){return~~t}}),i(t,{Map:function(){function t(){return this instanceof t?(r(this,"keys",[]),void r(this,"values",[])):new t}var n=function(t,n){for(var e=0,r=t.length;r>e;e++)if(Object.is(t[e],n))return e;return-1};return i(t.prototype,{get:function(t){var e=n(this.keys,t);return 0>e?void 0:this.values[e]},has:function(t){return n(this.keys,t)>=0},set:function(t,e){var r=this.keys,i=this.values,o=n(r,t);return 0>o&&(o=r.length),void 0===e?(r.splice(o,1),void i.splice(o,1)):(r[o]=t,void(i[o]=e))},"delete":function(t){var e=this.keys,r=this.values,i=n(e,t);return 0>i?!1:(e.splice(i,1),r.splice(i,1),!0)}}),t}(),Set:function(){function t(){return this instanceof t?void r(this,"map",Map()):new t}return i(t.prototype,{has:function(t){return this.map.has(t)},add:function(t){this.map.set(t,!0)},"delete":function(t){return this.map["delete"](t)}}),t}()})});
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.5.0/es6-shim.js b/ajax/libs/es6-shim/0.5.0/es6-shim.js
new file mode 100644
index 000000000..8ff6e17f6
--- /dev/null
+++ b/ajax/libs/es6-shim/0.5.0/es6-shim.js
@@ -0,0 +1,329 @@
+({define: (typeof define === 'function')
+    ? define  // RequireJS
+    : function(definition) {definition();} // CommonJS and <script>
+}).define(function() {
+  'use strict';
+
+  var globals = (typeof global === 'undefined') ? window : global;
+  var global_isFinite = globals.isFinite;
+  var factorial = function(value) {
+    var result = 1;
+    for (var i = 2; i <= value; i++) {
+      result *= i;
+    }
+    return result;
+  };
+
+  var defineProperty = function(object, name, method) {
+    if (!object[name]) {
+      Object.defineProperty(object, name, {
+        configurable: true,
+        enumerable: false,
+        writable: true,
+        value: method
+      });
+    }
+  };
+
+  var defineProperties = function(object, map) {
+    Object.keys(map).forEach(function(name) {
+      defineProperty(object, name, map[name]);
+    });
+  };
+
+  defineProperties(String.prototype, {
+    repeat: function(times) {
+      return new Array(times + 1).join(this);
+    },
+
+    startsWith: function(substring) {
+      return this.lastIndexOf(substring, 0) === 0;
+    },
+
+    endsWith: function(substring) {
+      var startFrom = this.length - String(substring).length;
+      return startFrom >= 0 && this.indexOf(substring, startFrom) === startFrom;
+    },
+
+    contains: function(substring) {
+      return this.indexOf(substring) !== -1;
+    },
+
+    toArray: function() {
+      return this.split('');
+    }
+  });
+
+  defineProperties(Array, {
+    from: function(iterable) {
+      var object = Object(iterable);
+      var array = [];
+
+      for (var key = 0, length = object.length >>> 0; key < length; key++) {
+        if (key in object) {
+          array[key] = object[key];
+        }
+      }
+
+      return array;
+    },
+
+    of: function() {
+      return Array.prototype.slice.call(arguments);
+    }
+  });
+
+  defineProperties(Number, {
+    MAX_INTEGER: 9007199254740992,
+    EPSILON: 2.220446049250313e-16,
+
+    parseInt: globals.parseInt,
+    parseFloat: globals.parseFloat,
+
+    isFinite: function(value) {
+      return typeof value === 'number' && global_isFinite(value);
+    },
+
+    isInteger: function(value) {
+      return Number.isFinite(value) &&
+        value >= -9007199254740992 && value <= Number.MAX_INTEGER &&
+        Math.floor(value) === value;
+    },
+
+    isNaN: function(value) {
+      return Object.is(value, NaN);
+    },
+
+    toInteger: function(value) {
+      var number = +value;
+      if (Object.is(number, NaN)) return +0;
+      if (number === 0 || !Number.isFinite(number)) return number;
+      return Math.sign(number) * Math.floor(Math.abs(number));
+    }
+  });
+
+  defineProperties(Number.prototype, {
+    clz: function() {
+      var number = +this;
+      if (!number || !Number.isFinite(number)) return 32;
+      number = number < 0 ? Math.ceil(number) : Math.floor(number);
+      number = number - Math.floor(number / 0x100000000) * 0x100000000;
+      return 32 - (number).toString(2).length;
+    }
+  });
+
+  defineProperties(Object, {
+    getOwnPropertyDescriptors: function(subject) {
+      var descs = {};
+      Object.getOwnPropertyNames(subject).forEach(function(propName) {
+        descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+      });
+      return descs;
+    },
+
+    getPropertyDescriptor: function(subject, name) {
+      var pd = Object.getOwnPropertyDescriptor(subject, name);
+      var proto = Object.getPrototypeOf(subject);
+      while (pd === undefined && proto !== null) {
+        pd = Object.getOwnPropertyDescriptor(proto, name);
+        proto = Object.getPrototypeOf(proto);
+      }
+      return pd;
+    },
+
+    getPropertyNames: function(subject, name) {
+      var result = Object.getOwnPropertyNames(subject);
+      var proto = Object.getPrototypeOf(subject);
+      var property;
+      while (proto !== null) {
+        Object.getOwnPropertyNames(proto).forEach(function(property) {
+          if (result.indexOf(property) === -1) {
+            result.push(property);
+          }
+        });
+        proto = Object.getPrototypeOf(proto);
+      }
+      return result;
+    },
+
+    is: function(x, y) {
+      if (x === y) {
+        // 0 === -0, but they are not identical
+        if (x === 0) {
+          return 1 / x === 1 / y;
+        } else {
+          return true;
+        }
+      }
+
+      // NaN !== NaN, but they are identical.
+      // NaNs are the only non-reflexive value, i.e., if x !== x,
+      // then x is a NaN.
+      // isNaN is broken: it converts its argument to number, so
+      // isNaN("foo") => true
+      return x !== x && y !== y;
+    },
+    
+    isnt: function(x, y) {
+      return !Object.is(x, y);
+    },
+
+    isObject: function(value) {
+      return typeof value === 'object' && value !== null;
+    }
+  });  
+  
+  defineProperties(Math, {
+    acosh: function(value) {
+      return Math.log(value + Math.sqrt(value * value - 1));
+    },
+    
+    asinh: function(value) {
+      return Math.log(value + Math.sqrt(value * value + 1));
+    },
+    
+    atanh: function(value) {
+      return 0.5 * Math.log((1 + value) / (1 - value));
+    },
+
+    cosh: function(value) {
+      if (value < 0) value = -value;
+      if (value > 21) return Math.exp(value) / 2;
+      return (Math.exp(value) + Math.exp(-value)) / 2;
+    },
+    
+    expm1: function(value) {
+      var result = 0;
+      var n = 50;
+      for (var i = 1; i < n; i++) {
+        result += Math.pow(value, i) / factorial(i);
+      }
+      return result;
+    },
+    
+    hypot: function(x, y) {
+      return Math.sqrt(x * x + y * y) || 0;
+    },
+
+    log2: function(value) {
+      return Math.log(value) * (1 / Math.LN2);
+    },
+    
+    log10: function(value) {
+      return Math.log(value) * (1 / Math.LN10);
+    },
+    
+    log1p: function(value) {
+      var result = 0;
+      var n = 50;
+
+      if (value <= -1) return -Infinity;
+      if (value < 0 || value > 1) return Math.log(1 + value);
+      for (var i = 1; i < n; i++) {
+        if ((i % 2) === 0) {
+          result -= Math.pow(value, i) / i;
+        } else {
+          result += Math.pow(value, i) / i;
+        }
+      }
+
+      return result;
+    },
+
+    sign: function(value) {
+      var number = +value;
+      if (number === 0) return number;
+      if (Object.is(number, NaN)) return number;
+      return (number < 0) ? -1 : 1;
+    },
+    
+    sinh: function(value) {
+      return (Math.exp(value) - Math.exp(-value)) / 2;
+    },
+    
+    tanh: function(value) {
+      return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+    },
+    
+    trunc: function(value) {
+      return ~~value;
+    }
+  });
+
+  defineProperties(globals, {
+    Map: (function() {
+      var indexOfIdentical = function(keys, key) {
+        for (var i = 0, length = keys.length; i < length; i++) {
+          if (Object.is(keys[i], key)) return i;
+        }
+        return -1;
+      };
+
+      function Map() {
+        if (!(this instanceof Map)) return new Map;
+        defineProperty(this, 'keys', []);
+        defineProperty(this, 'values', []);
+      }
+
+      defineProperties(Map.prototype, {
+        get: function(key) {
+          var index = indexOfIdentical(this.keys, key);
+          return index < 0 ? undefined : this.values[index];
+        },
+
+        has: function(key) {
+          return indexOfIdentical(this.keys, key) >= 0;
+        },
+
+        set: function(key, value) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) index = keys.length;
+          if (value === void 0) {
+            keys.splice(index, 1);
+            values.splice(index, 1);
+            return;
+          }
+          keys[index] = key;
+          values[index] = value;
+        },
+
+        'delete': function(key) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) return false;
+          keys.splice(index, 1);
+          values.splice(index, 1);
+          return true;
+        }
+      });
+
+      return Map;
+    })(),
+
+    Set: (function() {
+      function Set() {
+        if (!(this instanceof Set)) return new Set;
+        defineProperty(this, 'map', Map());
+      }
+
+      defineProperties(Set.prototype, {
+        has: function(key) {
+          return this.map.has(key);
+        },
+
+        add: function(key) {
+          this.map.set(key, true);
+        },
+
+        'delete': function(key) {
+          return this.map['delete'](key);
+        }
+      });
+
+      return Set;
+    })()
+  });
+});
diff --git a/ajax/libs/es6-shim/0.5.0/es6-shim.min.js b/ajax/libs/es6-shim/0.5.0/es6-shim.min.js
new file mode 100644
index 000000000..41e60e191
--- /dev/null
+++ b/ajax/libs/es6-shim/0.5.0/es6-shim.min.js
@@ -0,0 +1 @@
+({define:"function"==typeof define?define:function(t){t()}}).define(function(){"use strict";var t="undefined"==typeof global?window:global,n=t.isFinite,e=function(t){for(var n=1,e=2;t>=e;e++)n*=e;return n},r=function(t,n,e){t[n]||Object.defineProperty(t,n,{configurable:!0,enumerable:!1,writable:!0,value:e})},i=function(t,n){Object.keys(n).forEach(function(e){r(t,e,n[e])})};i(String.prototype,{repeat:function(t){return new Array(t+1).join(this)},startsWith:function(t){return 0===this.lastIndexOf(t,0)},endsWith:function(t){var n=this.length-String(t).length;return n>=0&&this.indexOf(t,n)===n},contains:function(t){return-1!==this.indexOf(t)},toArray:function(){return this.split("")}}),i(Array,{from:function(t){for(var n=Object(t),e=[],r=0,i=n.length>>>0;i>r;r++)r in n&&(e[r]=n[r]);return e},of:function(){return Array.prototype.slice.call(arguments)}}),i(Number,{MAX_INTEGER:9007199254740992,EPSILON:2.220446049250313e-16,parseInt:t.parseInt,parseFloat:t.parseFloat,isFinite:function(t){return"number"==typeof t&&n(t)},isInteger:function(t){return Number.isFinite(t)&&t>=-9007199254740992&&t<=Number.MAX_INTEGER&&Math.floor(t)===t},isNaN:function(t){return Object.is(t,0/0)},toInteger:function(t){var n=+t;return Object.is(n,0/0)?0:0!==n&&Number.isFinite(n)?Math.sign(n)*Math.floor(Math.abs(n)):n}}),i(Number.prototype,{clz:function(){var t=+this;return t&&Number.isFinite(t)?(t=0>t?Math.ceil(t):Math.floor(t),t-=4294967296*Math.floor(t/4294967296),32-t.toString(2).length):32}}),i(Object,{getOwnPropertyDescriptors:function(t){var n={};return Object.getOwnPropertyNames(t).forEach(function(e){n[e]=Object.getOwnPropertyDescriptor(t,e)}),n},getPropertyDescriptor:function(t,n){for(var e=Object.getOwnPropertyDescriptor(t,n),r=Object.getPrototypeOf(t);void 0===e&&null!==r;)e=Object.getOwnPropertyDescriptor(r,n),r=Object.getPrototypeOf(r);return e},getPropertyNames:function(t){for(var n=Object.getOwnPropertyNames(t),e=Object.getPrototypeOf(t);null!==e;)Object.getOwnPropertyNames(e).forEach(function(t){-1===n.indexOf(t)&&n.push(t)}),e=Object.getPrototypeOf(e);return n},is:function(t,n){return t===n?0===t?1/t===1/n:!0:t!==t&&n!==n},isnt:function(t,n){return!Object.is(t,n)},isObject:function(t){return"object"==typeof t&&null!==t}}),i(Math,{acosh:function(t){return Math.log(t+Math.sqrt(t*t-1))},asinh:function(t){return Math.log(t+Math.sqrt(t*t+1))},atanh:function(t){return.5*Math.log((1+t)/(1-t))},cosh:function(t){return 0>t&&(t=-t),t>21?Math.exp(t)/2:(Math.exp(t)+Math.exp(-t))/2},expm1:function(t){for(var n=0,r=50,i=1;r>i;i++)n+=Math.pow(t,i)/e(i);return n},hypot:function(t,n){return Math.sqrt(t*t+n*n)||0},log2:function(t){return Math.log(t)*(1/Math.LN2)},log10:function(t){return Math.log(t)*(1/Math.LN10)},log1p:function(t){var n=0,e=50;if(-1>=t)return-1/0;if(0>t||t>1)return Math.log(1+t);for(var r=1;e>r;r++)r%2===0?n-=Math.pow(t,r)/r:n+=Math.pow(t,r)/r;return n},sign:function(t){var n=+t;return 0===n?n:Object.is(n,0/0)?n:0>n?-1:1},sinh:function(t){return(Math.exp(t)-Math.exp(-t))/2},tanh:function(t){return(Math.exp(t)-Math.exp(-t))/(Math.exp(t)+Math.exp(-t))},trunc:function(t){return~~t}}),i(t,{Map:function(){function t(){return this instanceof t?(r(this,"keys",[]),void r(this,"values",[])):new t}var n=function(t,n){for(var e=0,r=t.length;r>e;e++)if(Object.is(t[e],n))return e;return-1};return i(t.prototype,{get:function(t){var e=n(this.keys,t);return 0>e?void 0:this.values[e]},has:function(t){return n(this.keys,t)>=0},set:function(t,e){var r=this.keys,i=this.values,o=n(r,t);return 0>o&&(o=r.length),void 0===e?(r.splice(o,1),void i.splice(o,1)):(r[o]=t,void(i[o]=e))},"delete":function(t){var e=this.keys,r=this.values,i=n(e,t);return 0>i?!1:(e.splice(i,1),r.splice(i,1),!0)}}),t}(),Set:function(){function t(){return this instanceof t?void r(this,"map",Map()):new t}return i(t.prototype,{has:function(t){return this.map.has(t)},add:function(t){this.map.set(t,!0)},"delete":function(t){return this.map["delete"](t)}}),t}()})});
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.5.1/es6-shim.js b/ajax/libs/es6-shim/0.5.1/es6-shim.js
new file mode 100644
index 000000000..e2d4a3e17
--- /dev/null
+++ b/ajax/libs/es6-shim/0.5.1/es6-shim.js
@@ -0,0 +1,324 @@
+({define: (typeof define === 'function')
+    ? define  // RequireJS
+    : function(definition) {definition();} // CommonJS and <script>
+}).define(function() {
+  'use strict';
+
+  var globals = (typeof global === 'undefined') ? window : global;
+  var global_isFinite = globals.isFinite;
+  var factorial = function(value) {
+    var result = 1;
+    for (var i = 2; i <= value; i++) {
+      result *= i;
+    }
+    return result;
+  };
+
+  var defineProperty = function(object, name, method) {
+    if (!object[name]) {
+      Object.defineProperty(object, name, {
+        configurable: true,
+        enumerable: false,
+        writable: true,
+        value: method
+      });
+    }
+  };
+
+  var defineProperties = function(object, map) {
+    Object.keys(map).forEach(function(name) {
+      defineProperty(object, name, map[name]);
+    });
+  };
+
+  defineProperties(String.prototype, {
+    repeat: function(times) {
+      return new Array(times + 1).join(this);
+    },
+
+    startsWith: function(substring) {
+      return this.lastIndexOf(substring, 0) === 0;
+    },
+
+    endsWith: function(substring) {
+      var startFrom = this.length - String(substring).length;
+      return startFrom >= 0 && this.indexOf(substring, startFrom) === startFrom;
+    },
+
+    contains: function(substring) {
+      return this.indexOf(substring) !== -1;
+    },
+
+    toArray: function() {
+      return this.split('');
+    }
+  });
+
+  defineProperties(Array, {
+    from: function(iterable) {
+      var object = Object(iterable);
+      var array = [];
+
+      for (var key = 0, length = object.length >>> 0; key < length; key++) {
+        if (key in object) {
+          array[key] = object[key];
+        }
+      }
+
+      return array;
+    },
+
+    of: function() {
+      return Array.prototype.slice.call(arguments);
+    }
+  });
+
+  defineProperties(Number, {
+    MAX_INTEGER: 9007199254740992,
+    EPSILON: 2.220446049250313e-16,
+
+    parseInt: globals.parseInt,
+    parseFloat: globals.parseFloat,
+
+    isFinite: function(value) {
+      return typeof value === 'number' && global_isFinite(value);
+    },
+
+    isInteger: function(value) {
+      return Number.isFinite(value) &&
+        value >= -9007199254740992 && value <= Number.MAX_INTEGER &&
+        Math.floor(value) === value;
+    },
+
+    isNaN: function(value) {
+      return Object.is(value, NaN);
+    },
+
+    toInteger: function(value) {
+      var number = +value;
+      if (Object.is(number, NaN)) return +0;
+      if (number === 0 || !Number.isFinite(number)) return number;
+      return Math.sign(number) * Math.floor(Math.abs(number));
+    }
+  });
+
+  defineProperties(Number.prototype, {
+    clz: function() {
+      var number = +this;
+      if (!number || !Number.isFinite(number)) return 32;
+      number = number < 0 ? Math.ceil(number) : Math.floor(number);
+      number = number - Math.floor(number / 0x100000000) * 0x100000000;
+      return 32 - (number).toString(2).length;
+    }
+  });
+
+  defineProperties(Object, {
+    getOwnPropertyDescriptors: function(subject) {
+      var descs = {};
+      Object.getOwnPropertyNames(subject).forEach(function(propName) {
+        descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+      });
+      return descs;
+    },
+
+    getPropertyDescriptor: function(subject, name) {
+      var pd = Object.getOwnPropertyDescriptor(subject, name);
+      var proto = Object.getPrototypeOf(subject);
+      while (pd === undefined && proto !== null) {
+        pd = Object.getOwnPropertyDescriptor(proto, name);
+        proto = Object.getPrototypeOf(proto);
+      }
+      return pd;
+    },
+
+    getPropertyNames: function(subject, name) {
+      var result = Object.getOwnPropertyNames(subject);
+      var proto = Object.getPrototypeOf(subject);
+      var property;
+      while (proto !== null) {
+        Object.getOwnPropertyNames(proto).forEach(function(property) {
+          if (result.indexOf(property) === -1) {
+            result.push(property);
+          }
+        });
+        proto = Object.getPrototypeOf(proto);
+      }
+      return result;
+    },
+
+    is: function(x, y) {
+      if (x === y) {
+        // 0 === -0, but they are not identical
+        if (x === 0) {
+          return 1 / x === 1 / y;
+        } else {
+          return true;
+        }
+      }
+
+      // NaN !== NaN, but they are identical.
+      // NaNs are the only non-reflexive value, i.e., if x !== x,
+      // then x is a NaN.
+      // isNaN is broken: it converts its argument to number, so
+      // isNaN("foo") => true
+      return x !== x && y !== y;
+    },
+    
+    isnt: function(x, y) {
+      return !Object.is(x, y);
+    },
+
+    isObject: function(value) {
+      return typeof value === 'object' && value !== null;
+    }
+  });  
+  
+  defineProperties(Math, {
+    acosh: function(value) {
+      return Math.log(value + Math.sqrt(value * value - 1));
+    },
+    
+    asinh: function(value) {
+      return Math.log(value + Math.sqrt(value * value + 1));
+    },
+    
+    atanh: function(value) {
+      return 0.5 * Math.log((1 + value) / (1 - value));
+    },
+
+    cosh: function(value) {
+      if (value < 0) value = -value;
+      if (value > 21) return Math.exp(value) / 2;
+      return (Math.exp(value) + Math.exp(-value)) / 2;
+    },
+    
+    expm1: function(value) {
+      var result = 0;
+      var n = 50;
+      for (var i = 1; i < n; i++) {
+        result += Math.pow(value, i) / factorial(i);
+      }
+      return result;
+    },
+    
+    hypot: function(x, y) {
+      return Math.sqrt(x * x + y * y) || 0;
+    },
+
+    log2: function(value) {
+      return Math.log(value) * (1 / Math.LN2);
+    },
+    
+    log10: function(value) {
+      return Math.log(value) * (1 / Math.LN10);
+    },
+    
+    log1p: function(value) {
+      var result = 0;
+      var n = 50;
+
+      if (value <= -1) return -Infinity;
+      if (value < 0 || value > 1) return Math.log(1 + value);
+      for (var i = 1; i < n; i++) {
+        if ((i % 2) === 0) {
+          result -= Math.pow(value, i) / i;
+        } else {
+          result += Math.pow(value, i) / i;
+        }
+      }
+
+      return result;
+    },
+
+    sign: function(value) {
+      var number = +value;
+      if (number === 0) return number;
+      if (Object.is(number, NaN)) return number;
+      return (number < 0) ? -1 : 1;
+    },
+    
+    sinh: function(value) {
+      return (Math.exp(value) - Math.exp(-value)) / 2;
+    },
+    
+    tanh: function(value) {
+      return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+    },
+    
+    trunc: function(value) {
+      return ~~value;
+    }
+  });
+
+  defineProperties(globals, {
+    Map: (function() {
+      var indexOfIdentical = function(keys, key) {
+        for (var i = 0, length = keys.length; i < length; i++) {
+          if (Object.is(keys[i], key)) return i;
+        }
+        return -1;
+      };
+
+      function Map() {
+        if (!(this instanceof Map)) return new Map;
+        defineProperty(this, 'keys', []);
+        defineProperty(this, 'values', []);
+      }
+
+      defineProperties(Map.prototype, {
+        get: function(key) {
+          var index = indexOfIdentical(this.keys, key);
+          return index < 0 ? undefined : this.values[index];
+        },
+
+        has: function(key) {
+          return indexOfIdentical(this.keys, key) >= 0;
+        },
+
+        set: function(key, value) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) index = keys.length;
+          keys[index] = key;
+          values[index] = value;
+        },
+
+        'delete': function(key) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) return false;
+          keys.splice(index, 1);
+          values.splice(index, 1);
+          return true;
+        }
+      });
+
+      return Map;
+    })(),
+
+    Set: (function() {
+      function Set() {
+        if (!(this instanceof Set)) return new Set;
+        defineProperty(this, 'map', Map());
+      }
+
+      defineProperties(Set.prototype, {
+        has: function(key) {
+          return this.map.has(key);
+        },
+
+        add: function(key) {
+          this.map.set(key, true);
+        },
+
+        'delete': function(key) {
+          return this.map['delete'](key);
+        }
+      });
+
+      return Set;
+    })()
+  });
+});
diff --git a/ajax/libs/es6-shim/0.5.1/es6-shim.min.js b/ajax/libs/es6-shim/0.5.1/es6-shim.min.js
new file mode 100644
index 000000000..c6adc45a7
--- /dev/null
+++ b/ajax/libs/es6-shim/0.5.1/es6-shim.min.js
@@ -0,0 +1 @@
+({define:"function"==typeof define?define:function(t){t()}}).define(function(){"use strict";var t="undefined"==typeof global?window:global,n=t.isFinite,e=function(t){for(var n=1,e=2;t>=e;e++)n*=e;return n},r=function(t,n,e){t[n]||Object.defineProperty(t,n,{configurable:!0,enumerable:!1,writable:!0,value:e})},i=function(t,n){Object.keys(n).forEach(function(e){r(t,e,n[e])})};i(String.prototype,{repeat:function(t){return new Array(t+1).join(this)},startsWith:function(t){return 0===this.lastIndexOf(t,0)},endsWith:function(t){var n=this.length-String(t).length;return n>=0&&this.indexOf(t,n)===n},contains:function(t){return-1!==this.indexOf(t)},toArray:function(){return this.split("")}}),i(Array,{from:function(t){for(var n=Object(t),e=[],r=0,i=n.length>>>0;i>r;r++)r in n&&(e[r]=n[r]);return e},of:function(){return Array.prototype.slice.call(arguments)}}),i(Number,{MAX_INTEGER:9007199254740992,EPSILON:2.220446049250313e-16,parseInt:t.parseInt,parseFloat:t.parseFloat,isFinite:function(t){return"number"==typeof t&&n(t)},isInteger:function(t){return Number.isFinite(t)&&t>=-9007199254740992&&t<=Number.MAX_INTEGER&&Math.floor(t)===t},isNaN:function(t){return Object.is(t,0/0)},toInteger:function(t){var n=+t;return Object.is(n,0/0)?0:0!==n&&Number.isFinite(n)?Math.sign(n)*Math.floor(Math.abs(n)):n}}),i(Number.prototype,{clz:function(){var t=+this;return t&&Number.isFinite(t)?(t=0>t?Math.ceil(t):Math.floor(t),t-=4294967296*Math.floor(t/4294967296),32-t.toString(2).length):32}}),i(Object,{getOwnPropertyDescriptors:function(t){var n={};return Object.getOwnPropertyNames(t).forEach(function(e){n[e]=Object.getOwnPropertyDescriptor(t,e)}),n},getPropertyDescriptor:function(t,n){for(var e=Object.getOwnPropertyDescriptor(t,n),r=Object.getPrototypeOf(t);void 0===e&&null!==r;)e=Object.getOwnPropertyDescriptor(r,n),r=Object.getPrototypeOf(r);return e},getPropertyNames:function(t){for(var n=Object.getOwnPropertyNames(t),e=Object.getPrototypeOf(t);null!==e;)Object.getOwnPropertyNames(e).forEach(function(t){-1===n.indexOf(t)&&n.push(t)}),e=Object.getPrototypeOf(e);return n},is:function(t,n){return t===n?0===t?1/t===1/n:!0:t!==t&&n!==n},isnt:function(t,n){return!Object.is(t,n)},isObject:function(t){return"object"==typeof t&&null!==t}}),i(Math,{acosh:function(t){return Math.log(t+Math.sqrt(t*t-1))},asinh:function(t){return Math.log(t+Math.sqrt(t*t+1))},atanh:function(t){return.5*Math.log((1+t)/(1-t))},cosh:function(t){return 0>t&&(t=-t),t>21?Math.exp(t)/2:(Math.exp(t)+Math.exp(-t))/2},expm1:function(t){for(var n=0,r=50,i=1;r>i;i++)n+=Math.pow(t,i)/e(i);return n},hypot:function(t,n){return Math.sqrt(t*t+n*n)||0},log2:function(t){return Math.log(t)*(1/Math.LN2)},log10:function(t){return Math.log(t)*(1/Math.LN10)},log1p:function(t){var n=0,e=50;if(-1>=t)return-1/0;if(0>t||t>1)return Math.log(1+t);for(var r=1;e>r;r++)r%2===0?n-=Math.pow(t,r)/r:n+=Math.pow(t,r)/r;return n},sign:function(t){var n=+t;return 0===n?n:Object.is(n,0/0)?n:0>n?-1:1},sinh:function(t){return(Math.exp(t)-Math.exp(-t))/2},tanh:function(t){return(Math.exp(t)-Math.exp(-t))/(Math.exp(t)+Math.exp(-t))},trunc:function(t){return~~t}}),i(t,{Map:function(){function t(){return this instanceof t?(r(this,"keys",[]),void r(this,"values",[])):new t}var n=function(t,n){for(var e=0,r=t.length;r>e;e++)if(Object.is(t[e],n))return e;return-1};return i(t.prototype,{get:function(t){var e=n(this.keys,t);return 0>e?void 0:this.values[e]},has:function(t){return n(this.keys,t)>=0},set:function(t,e){var r=this.keys,i=this.values,o=n(r,t);0>o&&(o=r.length),r[o]=t,i[o]=e},"delete":function(t){var e=this.keys,r=this.values,i=n(e,t);return 0>i?!1:(e.splice(i,1),r.splice(i,1),!0)}}),t}(),Set:function(){function t(){return this instanceof t?void r(this,"map",Map()):new t}return i(t.prototype,{has:function(t){return this.map.has(t)},add:function(t){this.map.set(t,!0)},"delete":function(t){return this.map["delete"](t)}}),t}()})});
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.5.2/es6-shim.js b/ajax/libs/es6-shim/0.5.2/es6-shim.js
new file mode 100644
index 000000000..c8d53edc6
--- /dev/null
+++ b/ajax/libs/es6-shim/0.5.2/es6-shim.js
@@ -0,0 +1,316 @@
+({define: (typeof define === 'function')
+    ? define  // RequireJS
+    : function(definition) {definition();} // CommonJS and <script>
+}).define(function() {
+  'use strict';
+
+  var globals = (typeof global === 'undefined') ? window : global;
+  var global_isFinite = globals.isFinite;
+  var factorial = function(value) {
+    var result = 1;
+    for (var i = 2; i <= value; i++) {
+      result *= i;
+    }
+    return result;
+  };
+
+  var defineProperty = function(object, name, method) {
+    if (!object[name]) {
+      Object.defineProperty(object, name, {
+        configurable: true,
+        enumerable: false,
+        writable: true,
+        value: method
+      });
+    }
+  };
+
+  var defineProperties = function(object, map) {
+    Object.keys(map).forEach(function(name) {
+      defineProperty(object, name, map[name]);
+    });
+  };
+
+  defineProperties(String.prototype, {
+    repeat: function(times) {
+      return new Array(times + 1).join(this);
+    },
+
+    startsWith: function(substring) {
+      return this.lastIndexOf(substring, 0) === 0;
+    },
+
+    endsWith: function(substring) {
+      var startFrom = this.length - String(substring).length;
+      return startFrom >= 0 && this.indexOf(substring, startFrom) === startFrom;
+    },
+
+    contains: function(substring) {
+      return this.indexOf(substring) !== -1;
+    }
+  });
+
+  defineProperties(Array, {
+    from: function(iterable) {
+      var object = Object(iterable);
+      var array = [];
+
+      for (var key = 0, length = object.length >>> 0; key < length; key++) {
+        if (key in object) {
+          array[key] = object[key];
+        }
+      }
+
+      return array;
+    },
+
+    of: function() {
+      return Array.prototype.slice.call(arguments);
+    }
+  });
+
+  defineProperties(Number, {
+    MAX_INTEGER: 9007199254740992,
+    EPSILON: 2.220446049250313e-16,
+
+    parseInt: globals.parseInt,
+    parseFloat: globals.parseFloat,
+
+    isFinite: function(value) {
+      return typeof value === 'number' && global_isFinite(value);
+    },
+
+    isInteger: function(value) {
+      return Number.isFinite(value) &&
+        value >= -9007199254740992 && value <= Number.MAX_INTEGER &&
+        Math.floor(value) === value;
+    },
+
+    isNaN: function(value) {
+      return Object.is(value, NaN);
+    },
+
+    toInteger: function(value) {
+      var number = +value;
+      if (Object.is(number, NaN)) return +0;
+      if (number === 0 || !Number.isFinite(number)) return number;
+      return Math.sign(number) * Math.floor(Math.abs(number));
+    }
+  });
+
+  defineProperties(Number.prototype, {
+    clz: function() {
+      var number = +this;
+      if (!number || !Number.isFinite(number)) return 32;
+      number = number < 0 ? Math.ceil(number) : Math.floor(number);
+      number = number - Math.floor(number / 0x100000000) * 0x100000000;
+      return 32 - (number).toString(2).length;
+    }
+  });
+
+  defineProperties(Object, {
+    getOwnPropertyDescriptors: function(subject) {
+      var descs = {};
+      Object.getOwnPropertyNames(subject).forEach(function(propName) {
+        descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+      });
+      return descs;
+    },
+
+    getPropertyDescriptor: function(subject, name) {
+      var pd = Object.getOwnPropertyDescriptor(subject, name);
+      var proto = Object.getPrototypeOf(subject);
+      while (pd === undefined && proto !== null) {
+        pd = Object.getOwnPropertyDescriptor(proto, name);
+        proto = Object.getPrototypeOf(proto);
+      }
+      return pd;
+    },
+
+    getPropertyNames: function(subject, name) {
+      var result = Object.getOwnPropertyNames(subject);
+      var proto = Object.getPrototypeOf(subject);
+      var property;
+      while (proto !== null) {
+        Object.getOwnPropertyNames(proto).forEach(function(property) {
+          if (result.indexOf(property) === -1) {
+            result.push(property);
+          }
+        });
+        proto = Object.getPrototypeOf(proto);
+      }
+      return result;
+    },
+
+    is: function(x, y) {
+      if (x === y) {
+        // 0 === -0, but they are not identical
+        if (x === 0) {
+          return 1 / x === 1 / y;
+        } else {
+          return true;
+        }
+      }
+
+      // NaN !== NaN, but they are identical.
+      // NaNs are the only non-reflexive value, i.e., if x !== x,
+      // then x is a NaN.
+      // isNaN is broken: it converts its argument to number, so
+      // isNaN("foo") => true
+      return x !== x && y !== y;
+    },
+    
+    isnt: function(x, y) {
+      return !Object.is(x, y);
+    }
+  });  
+  
+  defineProperties(Math, {
+    acosh: function(value) {
+      return Math.log(value + Math.sqrt(value * value - 1));
+    },
+    
+    asinh: function(value) {
+      return Math.log(value + Math.sqrt(value * value + 1));
+    },
+    
+    atanh: function(value) {
+      return 0.5 * Math.log((1 + value) / (1 - value));
+    },
+
+    cosh: function(value) {
+      if (value < 0) value = -value;
+      if (value > 21) return Math.exp(value) / 2;
+      return (Math.exp(value) + Math.exp(-value)) / 2;
+    },
+    
+    expm1: function(value) {
+      var result = 0;
+      var n = 50;
+      for (var i = 1; i < n; i++) {
+        result += Math.pow(value, i) / factorial(i);
+      }
+      return result;
+    },
+    
+    hypot: function(x, y) {
+      return Math.sqrt(x * x + y * y) || 0;
+    },
+
+    log2: function(value) {
+      return Math.log(value) * (1 / Math.LN2);
+    },
+    
+    log10: function(value) {
+      return Math.log(value) * (1 / Math.LN10);
+    },
+    
+    log1p: function(value) {
+      var result = 0;
+      var n = 50;
+
+      if (value <= -1) return -Infinity;
+      if (value < 0 || value > 1) return Math.log(1 + value);
+      for (var i = 1; i < n; i++) {
+        if ((i % 2) === 0) {
+          result -= Math.pow(value, i) / i;
+        } else {
+          result += Math.pow(value, i) / i;
+        }
+      }
+
+      return result;
+    },
+
+    sign: function(value) {
+      var number = +value;
+      if (number === 0) return number;
+      if (Object.is(number, NaN)) return number;
+      return (number < 0) ? -1 : 1;
+    },
+    
+    sinh: function(value) {
+      return (Math.exp(value) - Math.exp(-value)) / 2;
+    },
+    
+    tanh: function(value) {
+      return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+    },
+    
+    trunc: function(value) {
+      return ~~value;
+    }
+  });
+
+  defineProperties(globals, {
+    Map: (function() {
+      var indexOfIdentical = function(keys, key) {
+        for (var i = 0, length = keys.length; i < length; i++) {
+          if (Object.is(keys[i], key)) return i;
+        }
+        return -1;
+      };
+
+      function Map() {
+        if (!(this instanceof Map)) return new Map;
+        defineProperty(this, 'keys', []);
+        defineProperty(this, 'values', []);
+      }
+
+      defineProperties(Map.prototype, {
+        get: function(key) {
+          var index = indexOfIdentical(this.keys, key);
+          return index < 0 ? undefined : this.values[index];
+        },
+
+        has: function(key) {
+          return indexOfIdentical(this.keys, key) >= 0;
+        },
+
+        set: function(key, value) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) index = keys.length;
+          keys[index] = key;
+          values[index] = value;
+        },
+
+        'delete': function(key) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) return false;
+          keys.splice(index, 1);
+          values.splice(index, 1);
+          return true;
+        }
+      });
+
+      return Map;
+    })(),
+
+    Set: (function() {
+      function Set() {
+        if (!(this instanceof Set)) return new Set;
+        defineProperty(this, 'map', Map());
+      }
+
+      defineProperties(Set.prototype, {
+        has: function(key) {
+          return this.map.has(key);
+        },
+
+        add: function(key) {
+          this.map.set(key, true);
+        },
+
+        'delete': function(key) {
+          return this.map['delete'](key);
+        }
+      });
+
+      return Set;
+    })()
+  });
+});
diff --git a/ajax/libs/es6-shim/0.5.2/es6-shim.min.js b/ajax/libs/es6-shim/0.5.2/es6-shim.min.js
new file mode 100644
index 000000000..375da1ef8
--- /dev/null
+++ b/ajax/libs/es6-shim/0.5.2/es6-shim.min.js
@@ -0,0 +1 @@
+({define:"function"==typeof define?define:function(t){t()}}).define(function(){"use strict";var t="undefined"==typeof global?window:global,n=t.isFinite,e=function(t){for(var n=1,e=2;t>=e;e++)n*=e;return n},r=function(t,n,e){t[n]||Object.defineProperty(t,n,{configurable:!0,enumerable:!1,writable:!0,value:e})},i=function(t,n){Object.keys(n).forEach(function(e){r(t,e,n[e])})};i(String.prototype,{repeat:function(t){return new Array(t+1).join(this)},startsWith:function(t){return 0===this.lastIndexOf(t,0)},endsWith:function(t){var n=this.length-String(t).length;return n>=0&&this.indexOf(t,n)===n},contains:function(t){return-1!==this.indexOf(t)}}),i(Array,{from:function(t){for(var n=Object(t),e=[],r=0,i=n.length>>>0;i>r;r++)r in n&&(e[r]=n[r]);return e},of:function(){return Array.prototype.slice.call(arguments)}}),i(Number,{MAX_INTEGER:9007199254740992,EPSILON:2.220446049250313e-16,parseInt:t.parseInt,parseFloat:t.parseFloat,isFinite:function(t){return"number"==typeof t&&n(t)},isInteger:function(t){return Number.isFinite(t)&&t>=-9007199254740992&&t<=Number.MAX_INTEGER&&Math.floor(t)===t},isNaN:function(t){return Object.is(t,0/0)},toInteger:function(t){var n=+t;return Object.is(n,0/0)?0:0!==n&&Number.isFinite(n)?Math.sign(n)*Math.floor(Math.abs(n)):n}}),i(Number.prototype,{clz:function(){var t=+this;return t&&Number.isFinite(t)?(t=0>t?Math.ceil(t):Math.floor(t),t-=4294967296*Math.floor(t/4294967296),32-t.toString(2).length):32}}),i(Object,{getOwnPropertyDescriptors:function(t){var n={};return Object.getOwnPropertyNames(t).forEach(function(e){n[e]=Object.getOwnPropertyDescriptor(t,e)}),n},getPropertyDescriptor:function(t,n){for(var e=Object.getOwnPropertyDescriptor(t,n),r=Object.getPrototypeOf(t);void 0===e&&null!==r;)e=Object.getOwnPropertyDescriptor(r,n),r=Object.getPrototypeOf(r);return e},getPropertyNames:function(t){for(var n=Object.getOwnPropertyNames(t),e=Object.getPrototypeOf(t);null!==e;)Object.getOwnPropertyNames(e).forEach(function(t){-1===n.indexOf(t)&&n.push(t)}),e=Object.getPrototypeOf(e);return n},is:function(t,n){return t===n?0===t?1/t===1/n:!0:t!==t&&n!==n},isnt:function(t,n){return!Object.is(t,n)}}),i(Math,{acosh:function(t){return Math.log(t+Math.sqrt(t*t-1))},asinh:function(t){return Math.log(t+Math.sqrt(t*t+1))},atanh:function(t){return.5*Math.log((1+t)/(1-t))},cosh:function(t){return 0>t&&(t=-t),t>21?Math.exp(t)/2:(Math.exp(t)+Math.exp(-t))/2},expm1:function(t){for(var n=0,r=50,i=1;r>i;i++)n+=Math.pow(t,i)/e(i);return n},hypot:function(t,n){return Math.sqrt(t*t+n*n)||0},log2:function(t){return Math.log(t)*(1/Math.LN2)},log10:function(t){return Math.log(t)*(1/Math.LN10)},log1p:function(t){var n=0,e=50;if(-1>=t)return-1/0;if(0>t||t>1)return Math.log(1+t);for(var r=1;e>r;r++)r%2===0?n-=Math.pow(t,r)/r:n+=Math.pow(t,r)/r;return n},sign:function(t){var n=+t;return 0===n?n:Object.is(n,0/0)?n:0>n?-1:1},sinh:function(t){return(Math.exp(t)-Math.exp(-t))/2},tanh:function(t){return(Math.exp(t)-Math.exp(-t))/(Math.exp(t)+Math.exp(-t))},trunc:function(t){return~~t}}),i(t,{Map:function(){function t(){return this instanceof t?(r(this,"keys",[]),void r(this,"values",[])):new t}var n=function(t,n){for(var e=0,r=t.length;r>e;e++)if(Object.is(t[e],n))return e;return-1};return i(t.prototype,{get:function(t){var e=n(this.keys,t);return 0>e?void 0:this.values[e]},has:function(t){return n(this.keys,t)>=0},set:function(t,e){var r=this.keys,i=this.values,o=n(r,t);0>o&&(o=r.length),r[o]=t,i[o]=e},"delete":function(t){var e=this.keys,r=this.values,i=n(e,t);return 0>i?!1:(e.splice(i,1),r.splice(i,1),!0)}}),t}(),Set:function(){function t(){return this instanceof t?void r(this,"map",Map()):new t}return i(t.prototype,{has:function(t){return this.map.has(t)},add:function(t){this.map.set(t,!0)},"delete":function(t){return this.map["delete"](t)}}),t}()})});
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.5.3/es6-shim.js b/ajax/libs/es6-shim/0.5.3/es6-shim.js
new file mode 100644
index 000000000..423e782c9
--- /dev/null
+++ b/ajax/libs/es6-shim/0.5.3/es6-shim.js
@@ -0,0 +1,397 @@
+// ES6-shim 0.5.3 (c) 2012 Paul Miller (paulmillr.com)
+// ES6-shim may be freely distributed under the MIT license.
+// For more details and documentation:
+// https://github.com/paulmillr/es6-shim/
+({define: (typeof define === 'function') ?
+  define : // RequireJS
+  function(definition) {definition();} // CommonJS and <script>
+}).define(function() {
+  'use strict';
+
+  var globals = (typeof global === 'undefined') ? window : global;
+  var global_isFinite = globals.isFinite;
+  var factorial = function(value) {
+    var result = 1;
+    for (var i = 2; i <= value; i++) {
+      result *= i;
+    }
+    return result;
+  };
+
+  var defineProperty = function(object, name, method) {
+    if (!object[name]) {
+      Object.defineProperty(object, name, {
+        configurable: true,
+        enumerable: false,
+        writable: true,
+        value: method
+      });
+    }
+  };
+
+  var defineProperties = function(object, map) {
+    Object.keys(map).forEach(function(name) {
+      defineProperty(object, name, map[name]);
+    });
+  };
+
+  defineProperties(String.prototype, {
+    // Fast repeat, uses the `Exponentiation by squaring` algorithm.
+    repeat: function(times) {
+      if (times < 1) return '';
+      if (times % 2) return this.repeat(times - 1) + this;
+      var half = this.repeat(times / 2);
+      return half + half;
+    },
+
+    startsWith: function(searchString) {
+      var position = arguments[1];
+
+      // Let searchStr be ToString(searchString).
+      var searchStr = searchString.toString();
+
+      // ReturnIfAbrupt(searchStr).
+
+      // Let S be the result of calling ToString,
+      // giving it the this value as its argument.
+      var s = this.toString();
+
+      // ReturnIfAbrupt(S).
+
+      // Let pos be ToInteger(position).
+      // (If position is undefined, this step produces the value 0).
+      var pos = (position === undefined) ? 0 : Number.toInteger(position);
+      // ReturnIfAbrupt(pos).
+
+      // Let len be the number of elements in S.
+      var len = s.length;
+
+      // Let start be min(max(pos, 0), len).
+      var start = Math.min(Math.max(pos, 0), len);
+
+      // Let searchLength be the number of elements in searchString.
+      var searchLength = searchString.length;
+
+      // If searchLength+start is greater than len, return false.
+      if ((searchLength + start) > len) return false;
+
+      // If the searchLength sequence of elements of S starting at
+      // start is the same as the full element sequence of searchString,
+      // return true.
+      var index = ''.indexOf.call(s, searchString, start);
+      return index === start;
+    },
+
+    endsWith: function(searchString) {
+      var endPosition = arguments[1];
+
+      // ReturnIfAbrupt(CheckObjectCoercible(this value)).
+      // Let S be the result of calling ToString, giving it the this value as its argument.
+      // ReturnIfAbrupt(S).
+      var s = this.toString();
+
+      // Let searchStr be ToString(searchString).
+      // ReturnIfAbrupt(searchStr).
+      var searchStr = searchString.toString();
+
+      // Let len be the number of elements in S.
+      var len = s.length;
+
+      // If endPosition is undefined, let pos be len, else let pos be ToInteger(endPosition).
+      // ReturnIfAbrupt(pos).
+      var pos = (endPosition === undefined) ?
+        len :
+        Number.toInteger(endPosition);
+
+      // Let end be min(max(pos, 0), len).
+      var end = Math.min(Math.max(pos, 0), len);
+
+      // Let searchLength be the number of elements in searchString.
+      var searchLength = searchString.length;
+
+      // Let start be end - searchLength.
+      var start = end - searchLength;
+
+      // If start is less than 0, return false.
+      if (start < 0) return false;
+
+      // If the searchLength sequence of elements of S starting at start is the same as the full element sequence of searchString, return true.
+      // Otherwise, return false.
+      var index = ''.indexOf.call(s, searchString, start);
+      return index === start;
+    },
+
+    contains: function(searchString) {
+      var position = arguments[1];
+
+      // Somehow this trick makes method 100% compat with the spec.
+      return ''.indexOf.call(this, searchString, position) !== -1;
+    }
+  });
+
+  defineProperties(Array, {
+    from: function(iterable) {
+      var object = new Object(iterable);
+      var array = [];
+
+      for (var key = 0, length = object.length >>> 0; key < length; key++) {
+        if (key in object) {
+          array[key] = object[key];
+        }
+      }
+
+      return array;
+    },
+
+    of: function() {
+      return Array.prototype.slice.call(arguments);
+    }
+  });
+
+  defineProperties(Number, {
+    MAX_INTEGER: 9007199254740992,
+    EPSILON: 2.220446049250313e-16,
+
+    parseInt: globals.parseInt,
+    parseFloat: globals.parseFloat,
+
+    isFinite: function(value) {
+      return typeof value === 'number' && global_isFinite(value);
+    },
+
+    isInteger: function(value) {
+      return Number.isFinite(value) &&
+        value >= -9007199254740992 && value <= Number.MAX_INTEGER &&
+        Math.floor(value) === value;
+    },
+
+    isNaN: function(value) {
+      return Object.is(value, NaN);
+    },
+
+    toInteger: function(value) {
+      var number = +value;
+      if (Object.is(number, NaN)) return +0;
+      if (number === 0 || !Number.isFinite(number)) return number;
+      return Math.sign(number) * Math.floor(Math.abs(number));
+    }
+  });
+
+  defineProperties(Number.prototype, {
+    clz: function() {
+      var number = +this;
+      if (!number || !Number.isFinite(number)) return 32;
+      number = number < 0 ? Math.ceil(number) : Math.floor(number);
+      number = number - Math.floor(number / 0x100000000) * 0x100000000;
+      return 32 - (number).toString(2).length;
+    }
+  });
+
+  defineProperties(Object, {
+    getOwnPropertyDescriptors: function(subject) {
+      var descs = {};
+      Object.getOwnPropertyNames(subject).forEach(function(propName) {
+        descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+      });
+      return descs;
+    },
+
+    getPropertyDescriptor: function(subject, name) {
+      var pd = Object.getOwnPropertyDescriptor(subject, name);
+      var proto = Object.getPrototypeOf(subject);
+      while (pd === undefined && proto !== null) {
+        pd = Object.getOwnPropertyDescriptor(proto, name);
+        proto = Object.getPrototypeOf(proto);
+      }
+      return pd;
+    },
+
+    getPropertyNames: function(subject) {
+      var result = Object.getOwnPropertyNames(subject);
+      var proto = Object.getPrototypeOf(subject);
+
+      var addProperty = function(property) {
+        if (result.indexOf(property) === -1) {
+          result.push(property);
+        }
+      };
+
+      while (proto !== null) {
+        Object.getOwnPropertyNames(proto).forEach(addProperty);
+        proto = Object.getPrototypeOf(proto);
+      }
+      return result;
+    },
+
+    is: function(x, y) {
+      if (x === y) {
+        // 0 === -0, but they are not identical.
+        if (x === 0) {
+          return 1 / x === 1 / y;
+        } else {
+          return true;
+        }
+      }
+
+      // NaN !== NaN, but they are identical.
+      // NaNs are the only non-reflexive value, i.e., if x !== x,
+      // then x is a NaN.
+      // isNaN is broken: it converts its argument to number, so
+      // isNaN('foo') => true
+      return x !== x && y !== y;
+    },
+
+    isnt: function(x, y) {
+      return !Object.is(x, y);
+    }
+  });
+
+  defineProperties(Math, {
+    acosh: function(value) {
+      return Math.log(value + Math.sqrt(value * value - 1));
+    },
+
+    asinh: function(value) {
+      return Math.log(value + Math.sqrt(value * value + 1));
+    },
+
+    atanh: function(value) {
+      return 0.5 * Math.log((1 + value) / (1 - value));
+    },
+
+    cosh: function(value) {
+      if (value < 0) value = -value;
+      if (value > 21) return Math.exp(value) / 2;
+      return (Math.exp(value) + Math.exp(-value)) / 2;
+    },
+
+    expm1: function(value) {
+      var result = 0;
+      var n = 50;
+      for (var i = 1; i < n; i++) {
+        result += Math.pow(value, i) / factorial(i);
+      }
+      return result;
+    },
+
+    hypot: function(x, y) {
+      return Math.sqrt(x * x + y * y) || 0;
+    },
+
+    log2: function(value) {
+      return Math.log(value) * (1 / Math.LN2);
+    },
+
+    log10: function(value) {
+      return Math.log(value) * (1 / Math.LN10);
+    },
+
+    log1p: function(value) {
+      var result = 0;
+      var n = 50;
+
+      if (value <= -1) return -Infinity;
+      if (value < 0 || value > 1) return Math.log(1 + value);
+      for (var i = 1; i < n; i++) {
+        if ((i % 2) === 0) {
+          result -= Math.pow(value, i) / i;
+        } else {
+          result += Math.pow(value, i) / i;
+        }
+      }
+
+      return result;
+    },
+
+    sign: function(value) {
+      var number = +value;
+      if (number === 0) return number;
+      if (Object.is(number, NaN)) return number;
+      return (number < 0) ? -1 : 1;
+    },
+
+    sinh: function(value) {
+      return (Math.exp(value) - Math.exp(-value)) / 2;
+    },
+
+    tanh: function(value) {
+      return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+    },
+
+    trunc: function(value) {
+      return ~~value;
+    }
+  });
+
+  defineProperties(globals, {
+    Map: (function() {
+      var indexOfIdentical = function(keys, key) {
+        for (var i = 0, length = keys.length; i < length; i++) {
+          if (Object.is(keys[i], key)) return i;
+        }
+        return -1;
+      };
+
+      function Map() {
+        if (!(this instanceof Map)) return new Map();
+        defineProperty(this, 'keys', []);
+        defineProperty(this, 'values', []);
+      }
+
+      defineProperties(Map.prototype, {
+        get: function(key) {
+          var index = indexOfIdentical(this.keys, key);
+          return index < 0 ? undefined : this.values[index];
+        },
+
+        has: function(key) {
+          return indexOfIdentical(this.keys, key) >= 0;
+        },
+
+        set: function(key, value) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) index = keys.length;
+          keys[index] = key;
+          values[index] = value;
+        },
+
+        'delete': function(key) {
+          var keys = this.keys;
+          var values = this.values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) return false;
+          keys.splice(index, 1);
+          values.splice(index, 1);
+          return true;
+        }
+      });
+
+      return Map;
+    })(),
+
+    Set: (function() {
+      function Set() {
+        if (!(this instanceof Set)) return new Set();
+        defineProperty(this, 'map', new Map());
+      }
+
+      defineProperties(Set.prototype, {
+        has: function(key) {
+          return this.map.has(key);
+        },
+
+        add: function(key) {
+          this.map.set(key, true);
+        },
+
+        'delete': function(key) {
+          return this.map['delete'](key);
+        }
+      });
+
+      return Set;
+    })()
+  });
+});
diff --git a/ajax/libs/es6-shim/0.5.3/es6-shim.min.js b/ajax/libs/es6-shim/0.5.3/es6-shim.min.js
new file mode 100644
index 000000000..b1ab8e380
--- /dev/null
+++ b/ajax/libs/es6-shim/0.5.3/es6-shim.min.js
@@ -0,0 +1 @@
+({define:"function"==typeof define?define:function(t){t()}}).define(function(){"use strict";var t="undefined"==typeof global?window:global,e=t.isFinite,n=function(t){for(var e=1,n=2;t>=n;n++)e*=n;return e},r=function(t,e,n){t[e]||Object.defineProperty(t,e,{configurable:!0,enumerable:!1,writable:!0,value:n})},i=function(t,e){Object.keys(e).forEach(function(n){r(t,n,e[n])})};i(String.prototype,{repeat:function(t){if(1>t)return"";if(t%2)return this.repeat(t-1)+this;var e=this.repeat(t/2);return e+e},startsWith:function(t){var e=arguments[1],n=(t.toString(),this.toString()),r=void 0===e?0:Number.toInteger(e),i=n.length,o=Math.min(Math.max(r,0),i),u=t.length;if(u+o>i)return!1;var a="".indexOf.call(n,t,o);return a===o},endsWith:function(t){var e=arguments[1],n=this.toString(),r=(t.toString(),n.length),i=void 0===e?r:Number.toInteger(e),o=Math.min(Math.max(i,0),r),u=t.length,a=o-u;if(0>a)return!1;var c="".indexOf.call(n,t,a);return c===a},contains:function(t){var e=arguments[1];return-1!=="".indexOf.call(this,t,e)}}),i(Array,{from:function(t){for(var e=new Object(t),n=[],r=0,i=e.length>>>0;i>r;r++)r in e&&(n[r]=e[r]);return n},of:function(){return Array.prototype.slice.call(arguments)}}),i(Number,{MAX_INTEGER:9007199254740992,EPSILON:2.220446049250313e-16,parseInt:t.parseInt,parseFloat:t.parseFloat,isFinite:function(t){return"number"==typeof t&&e(t)},isInteger:function(t){return Number.isFinite(t)&&t>=-9007199254740992&&t<=Number.MAX_INTEGER&&Math.floor(t)===t},isNaN:function(t){return Object.is(t,0/0)},toInteger:function(t){var e=+t;return Object.is(e,0/0)?0:0!==e&&Number.isFinite(e)?Math.sign(e)*Math.floor(Math.abs(e)):e}}),i(Number.prototype,{clz:function(){var t=+this;return t&&Number.isFinite(t)?(t=0>t?Math.ceil(t):Math.floor(t),t-=4294967296*Math.floor(t/4294967296),32-t.toString(2).length):32}}),i(Object,{getOwnPropertyDescriptors:function(t){var e={};return Object.getOwnPropertyNames(t).forEach(function(n){e[n]=Object.getOwnPropertyDescriptor(t,n)}),e},getPropertyDescriptor:function(t,e){for(var n=Object.getOwnPropertyDescriptor(t,e),r=Object.getPrototypeOf(t);void 0===n&&null!==r;)n=Object.getOwnPropertyDescriptor(r,e),r=Object.getPrototypeOf(r);return n},getPropertyNames:function(t){for(var e=Object.getOwnPropertyNames(t),n=Object.getPrototypeOf(t),r=function(t){-1===e.indexOf(t)&&e.push(t)};null!==n;)Object.getOwnPropertyNames(n).forEach(r),n=Object.getPrototypeOf(n);return e},is:function(t,e){return t===e?0===t?1/t===1/e:!0:t!==t&&e!==e},isnt:function(t,e){return!Object.is(t,e)}}),i(Math,{acosh:function(t){return Math.log(t+Math.sqrt(t*t-1))},asinh:function(t){return Math.log(t+Math.sqrt(t*t+1))},atanh:function(t){return.5*Math.log((1+t)/(1-t))},cosh:function(t){return 0>t&&(t=-t),t>21?Math.exp(t)/2:(Math.exp(t)+Math.exp(-t))/2},expm1:function(t){for(var e=0,r=50,i=1;r>i;i++)e+=Math.pow(t,i)/n(i);return e},hypot:function(t,e){return Math.sqrt(t*t+e*e)||0},log2:function(t){return Math.log(t)*(1/Math.LN2)},log10:function(t){return Math.log(t)*(1/Math.LN10)},log1p:function(t){var e=0,n=50;if(-1>=t)return-1/0;if(0>t||t>1)return Math.log(1+t);for(var r=1;n>r;r++)r%2===0?e-=Math.pow(t,r)/r:e+=Math.pow(t,r)/r;return e},sign:function(t){var e=+t;return 0===e?e:Object.is(e,0/0)?e:0>e?-1:1},sinh:function(t){return(Math.exp(t)-Math.exp(-t))/2},tanh:function(t){return(Math.exp(t)-Math.exp(-t))/(Math.exp(t)+Math.exp(-t))},trunc:function(t){return~~t}}),i(t,{Map:function(){function t(){return this instanceof t?(r(this,"keys",[]),void r(this,"values",[])):new t}var e=function(t,e){for(var n=0,r=t.length;r>n;n++)if(Object.is(t[n],e))return n;return-1};return i(t.prototype,{get:function(t){var n=e(this.keys,t);return 0>n?void 0:this.values[n]},has:function(t){return e(this.keys,t)>=0},set:function(t,n){var r=this.keys,i=this.values,o=e(r,t);0>o&&(o=r.length),r[o]=t,i[o]=n},"delete":function(t){var n=this.keys,r=this.values,i=e(n,t);return 0>i?!1:(n.splice(i,1),r.splice(i,1),!0)}}),t}(),Set:function(){function t(){return this instanceof t?void r(this,"map",new Map):new t}return i(t.prototype,{has:function(t){return this.map.has(t)},add:function(t){this.map.set(t,!0)},"delete":function(t){return this.map["delete"](t)}}),t}()})});
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.6.0/es6-shim.js b/ajax/libs/es6-shim/0.6.0/es6-shim.js
new file mode 100644
index 000000000..6a1596ba5
--- /dev/null
+++ b/ajax/libs/es6-shim/0.6.0/es6-shim.js
@@ -0,0 +1,434 @@
+// ES6-shim 0.6.0 (c) 2013 Paul Miller (paulmillr.com)
+// ES6-shim may be freely distributed under the MIT license.
+// For more details and documentation:
+// https://github.com/paulmillr/es6-shim/
+var main = function() {
+  'use strict';
+
+  var globals = (typeof global === 'undefined') ? window : global;
+  var global_isFinite = globals.isFinite;
+  var factorial = function(value) {
+    var result = 1;
+    for (var i = 2; i <= value; i++) {
+      result *= i;
+    }
+    return result;
+  };
+
+  var defineProperty = function(object, name, method) {
+    if (!object[name]) {
+      Object.defineProperty(object, name, {
+        configurable: true,
+        enumerable: false,
+        writable: true,
+        value: method
+      });
+    }
+  };
+
+  var defineProperties = function(object, map) {
+    Object.keys(map).forEach(function(name) {
+      defineProperty(object, name, map[name]);
+    });
+  };
+
+  defineProperties(String.prototype, {
+    // Fast repeat, uses the `Exponentiation by squaring` algorithm.
+    repeat: function(times) {
+      if (times < 1) return '';
+      if (times % 2) return this.repeat(times - 1) + this;
+      var half = this.repeat(times / 2);
+      return half + half;
+    },
+
+    startsWith: function(searchString) {
+      var position = arguments[1];
+
+      // Let searchStr be ToString(searchString).
+      var searchStr = searchString.toString();
+
+      // ReturnIfAbrupt(searchStr).
+
+      // Let S be the result of calling ToString,
+      // giving it the this value as its argument.
+      var s = this.toString();
+
+      // ReturnIfAbrupt(S).
+
+      // Let pos be ToInteger(position).
+      // (If position is undefined, this step produces the value 0).
+      var pos = (position === undefined) ? 0 : Number.toInteger(position);
+      // ReturnIfAbrupt(pos).
+
+      // Let len be the number of elements in S.
+      var len = s.length;
+
+      // Let start be min(max(pos, 0), len).
+      var start = Math.min(Math.max(pos, 0), len);
+
+      // Let searchLength be the number of elements in searchString.
+      var searchLength = searchString.length;
+
+      // If searchLength+start is greater than len, return false.
+      if ((searchLength + start) > len) return false;
+
+      // If the searchLength sequence of elements of S starting at
+      // start is the same as the full element sequence of searchString,
+      // return true.
+      var index = ''.indexOf.call(s, searchString, start);
+      return index === start;
+    },
+
+    endsWith: function(searchString) {
+      var endPosition = arguments[1];
+
+      // ReturnIfAbrupt(CheckObjectCoercible(this value)).
+      // Let S be the result of calling ToString, giving it the this value as its argument.
+      // ReturnIfAbrupt(S).
+      var s = this.toString();
+
+      // Let searchStr be ToString(searchString).
+      // ReturnIfAbrupt(searchStr).
+      var searchStr = searchString.toString();
+
+      // Let len be the number of elements in S.
+      var len = s.length;
+
+      // If endPosition is undefined, let pos be len, else let pos be ToInteger(endPosition).
+      // ReturnIfAbrupt(pos).
+      var pos = (endPosition === undefined) ?
+        len :
+        Number.toInteger(endPosition);
+
+      // Let end be min(max(pos, 0), len).
+      var end = Math.min(Math.max(pos, 0), len);
+
+      // Let searchLength be the number of elements in searchString.
+      var searchLength = searchString.length;
+
+      // Let start be end - searchLength.
+      var start = end - searchLength;
+
+      // If start is less than 0, return false.
+      if (start < 0) return false;
+
+      // If the searchLength sequence of elements of S starting at start is the same as the full element sequence of searchString, return true.
+      // Otherwise, return false.
+      var index = ''.indexOf.call(s, searchString, start);
+      return index === start;
+    },
+
+    contains: function(searchString) {
+      var position = arguments[1];
+
+      // Somehow this trick makes method 100% compat with the spec.
+      return ''.indexOf.call(this, searchString, position) !== -1;
+    }
+  });
+
+  defineProperties(Array, {
+    from: function(iterable) {
+      var object = new Object(iterable);
+      var array = [];
+
+      for (var key = 0, length = object.length >>> 0; key < length; key++) {
+        if (key in object) {
+          array[key] = object[key];
+        }
+      }
+
+      return array;
+    },
+
+    of: function() {
+      return Array.prototype.slice.call(arguments);
+    }
+  });
+
+  defineProperties(Number, {
+    MAX_INTEGER: 9007199254740992,
+    EPSILON: 2.220446049250313e-16,
+
+    parseInt: globals.parseInt,
+    parseFloat: globals.parseFloat,
+
+    isFinite: function(value) {
+      return typeof value === 'number' && global_isFinite(value);
+    },
+
+    isInteger: function(value) {
+      return Number.isFinite(value) &&
+        value >= -9007199254740992 && value <= Number.MAX_INTEGER &&
+        Math.floor(value) === value;
+    },
+
+    isNaN: function(value) {
+      return Object.is(value, NaN);
+    },
+
+    toInteger: function(value) {
+      var number = +value;
+      if (Object.is(number, NaN)) return +0;
+      if (number === 0 || !Number.isFinite(number)) return number;
+      return Math.sign(number) * Math.floor(Math.abs(number));
+    }
+  });
+
+  defineProperties(Number.prototype, {
+    clz: function() {
+      var number = +this;
+      if (!number || !Number.isFinite(number)) return 32;
+      number = number < 0 ? Math.ceil(number) : Math.floor(number);
+      number = number - Math.floor(number / 0x100000000) * 0x100000000;
+      return 32 - (number).toString(2).length;
+    }
+  });
+
+  defineProperties(Object, {
+    getOwnPropertyDescriptors: function(subject) {
+      var descs = {};
+      Object.getOwnPropertyNames(subject).forEach(function(propName) {
+        descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+      });
+      return descs;
+    },
+
+    getPropertyDescriptor: function(subject, name) {
+      var pd = Object.getOwnPropertyDescriptor(subject, name);
+      var proto = Object.getPrototypeOf(subject);
+      while (pd === undefined && proto !== null) {
+        pd = Object.getOwnPropertyDescriptor(proto, name);
+        proto = Object.getPrototypeOf(proto);
+      }
+      return pd;
+    },
+
+    getPropertyNames: function(subject) {
+      var result = Object.getOwnPropertyNames(subject);
+      var proto = Object.getPrototypeOf(subject);
+
+      var addProperty = function(property) {
+        if (result.indexOf(property) === -1) {
+          result.push(property);
+        }
+      };
+
+      while (proto !== null) {
+        Object.getOwnPropertyNames(proto).forEach(addProperty);
+        proto = Object.getPrototypeOf(proto);
+      }
+      return result;
+    },
+
+    is: function(x, y) {
+      if (x === y) {
+        // 0 === -0, but they are not identical.
+        if (x === 0) {
+          return 1 / x === 1 / y;
+        } else {
+          return true;
+        }
+      }
+
+      // NaN !== NaN, but they are identical.
+      // NaNs are the only non-reflexive value, i.e., if x !== x,
+      // then x is a NaN.
+      // isNaN is broken: it converts its argument to number, so
+      // isNaN('foo') => true
+      return x !== x && y !== y;
+    },
+
+    isnt: function(x, y) {
+      return !Object.is(x, y);
+    }
+  });
+
+  defineProperties(Math, {
+    acosh: function(value) {
+      return Math.log(value + Math.sqrt(value * value - 1));
+    },
+
+    asinh: function(value) {
+      return Math.log(value + Math.sqrt(value * value + 1));
+    },
+
+    atanh: function(value) {
+      return 0.5 * Math.log((1 + value) / (1 - value));
+    },
+
+    cosh: function(value) {
+      if (value < 0) value = -value;
+      if (value > 21) return Math.exp(value) / 2;
+      return (Math.exp(value) + Math.exp(-value)) / 2;
+    },
+
+    expm1: function(value) {
+      var result = 0;
+      var n = 50;
+      for (var i = 1; i < n; i++) {
+        result += Math.pow(value, i) / factorial(i);
+      }
+      return result;
+    },
+
+    hypot: function(x, y) {
+      return Math.sqrt(x * x + y * y) || 0;
+    },
+
+    log2: function(value) {
+      return Math.log(value) * (1 / Math.LN2);
+    },
+
+    log10: function(value) {
+      return Math.log(value) * (1 / Math.LN10);
+    },
+
+    log1p: function(value) {
+      var result = 0;
+      var n = 50;
+
+      if (value <= -1) return -Infinity;
+      if (value < 0 || value > 1) return Math.log(1 + value);
+      for (var i = 1; i < n; i++) {
+        if ((i % 2) === 0) {
+          result -= Math.pow(value, i) / i;
+        } else {
+          result += Math.pow(value, i) / i;
+        }
+      }
+
+      return result;
+    },
+
+    sign: function(value) {
+      var number = +value;
+      if (number === 0) return number;
+      if (Object.is(number, NaN)) return number;
+      return (number < 0) ? -1 : 1;
+    },
+
+    sinh: function(value) {
+      return (Math.exp(value) - Math.exp(-value)) / 2;
+    },
+
+    tanh: function(value) {
+      return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+    },
+
+    trunc: function(value) {
+      return ~~value;
+    }
+  });
+
+  defineProperties(globals, {
+    Map: (function() {
+      var indexOfIdentical = function(keys, key) {
+        for (var i = 0, length = keys.length; i < length; i++) {
+          if (Object.is(keys[i], key)) return i;
+        }
+        return -1;
+      };
+
+      function Map() {
+        if (!(this instanceof Map)) return new Map();
+        defineProperty(this, '_keys', []);
+        defineProperty(this, '_values', []);
+        defineProperty(this, '_size', 0);
+        Object.defineProperty(this, 'size', {
+          configurable: true,
+          enumerable: false,
+          get: (function() {
+            return this._size;
+          }).bind(this)
+        });
+      }
+
+      defineProperties(Map.prototype, {
+        get: function(key) {
+          var index = indexOfIdentical(this._keys, key);
+          return index < 0 ? undefined : this._values[index];
+        },
+
+        has: function(key) {
+          return indexOfIdentical(this._keys, key) >= 0;
+        },
+
+        set: function(key, value) {
+          var keys = this._keys;
+          var values = this._values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) index = keys.length;
+          keys[index] = key;
+          values[index] = value;
+          this._size += 1;
+        },
+
+        'delete': function(key) {
+          var keys = this._keys;
+          var values = this._values;
+          var index = indexOfIdentical(keys, key);
+          if (index < 0) return false;
+          keys.splice(index, 1);
+          values.splice(index, 1);
+          this._size -= 1;
+          return true;
+        },
+
+        keys: function() {
+          return this._keys;
+        },
+
+        values: function() {
+          return this._values;
+        }
+      });
+
+      return Map;
+    })(),
+
+    Set: (function() {
+      function Set() {
+        if (!(this instanceof Set)) return new Set();
+        defineProperty(this, '[[SetData]]', new Map());
+        Object.defineProperty(this, 'size', {
+          configurable: true,
+          enumerable: false,
+          get: (function() {
+            return this['[[SetData]]'].size;
+          }).bind(this)
+        });
+      }
+
+      defineProperties(Set.prototype, {
+        has: function(key) {
+          return this['[[SetData]]'].has(key);
+        },
+
+        add: function(key) {
+          this['[[SetData]]'].set(key, true);
+        },
+
+        'delete': function(key) {
+          return this['[[SetData]]']['delete'](key);
+        },
+
+        clear: function() {
+          Object.defineProperty(this, '[[SetData]]', {
+            configurable: true,
+            enumerable: false,
+            writable: true,
+            value: new Map()
+          });
+        }
+      });
+
+      return Set;
+    })()
+  });
+};
+
+if (typeof define === 'function' && typeof define.amd == 'object' && define.amd) {
+  define(main); // RequireJS
+} else {
+  main(); // CommonJS and <script>
+}
diff --git a/ajax/libs/es6-shim/0.6.0/es6-shim.min.js b/ajax/libs/es6-shim/0.6.0/es6-shim.min.js
new file mode 100644
index 000000000..76b588a9d
--- /dev/null
+++ b/ajax/libs/es6-shim/0.6.0/es6-shim.min.js
@@ -0,0 +1 @@
+var main=function(){"use strict";var t="undefined"==typeof global?window:global,e=t.isFinite,n=function(t){for(var e=1,n=2;t>=n;n++)e*=n;return e},r=function(t,e,n){t[e]||Object.defineProperty(t,e,{configurable:!0,enumerable:!1,writable:!0,value:n})},i=function(t,e){Object.keys(e).forEach(function(n){r(t,n,e[n])})};i(String.prototype,{repeat:function(t){if(1>t)return"";if(t%2)return this.repeat(t-1)+this;var e=this.repeat(t/2);return e+e},startsWith:function(t){var e=arguments[1],n=(t.toString(),this.toString()),r=void 0===e?0:Number.toInteger(e),i=n.length,o=Math.min(Math.max(r,0),i),a=t.length;if(a+o>i)return!1;var u="".indexOf.call(n,t,o);return u===o},endsWith:function(t){var e=arguments[1],n=this.toString(),r=(t.toString(),n.length),i=void 0===e?r:Number.toInteger(e),o=Math.min(Math.max(i,0),r),a=t.length,u=o-a;if(0>u)return!1;var s="".indexOf.call(n,t,u);return s===u},contains:function(t){var e=arguments[1];return-1!=="".indexOf.call(this,t,e)}}),i(Array,{from:function(t){for(var e=new Object(t),n=[],r=0,i=e.length>>>0;i>r;r++)r in e&&(n[r]=e[r]);return n},of:function(){return Array.prototype.slice.call(arguments)}}),i(Number,{MAX_INTEGER:9007199254740992,EPSILON:2.220446049250313e-16,parseInt:t.parseInt,parseFloat:t.parseFloat,isFinite:function(t){return"number"==typeof t&&e(t)},isInteger:function(t){return Number.isFinite(t)&&t>=-9007199254740992&&t<=Number.MAX_INTEGER&&Math.floor(t)===t},isNaN:function(t){return Object.is(t,0/0)},toInteger:function(t){var e=+t;return Object.is(e,0/0)?0:0!==e&&Number.isFinite(e)?Math.sign(e)*Math.floor(Math.abs(e)):e}}),i(Number.prototype,{clz:function(){var t=+this;return t&&Number.isFinite(t)?(t=0>t?Math.ceil(t):Math.floor(t),t-=4294967296*Math.floor(t/4294967296),32-t.toString(2).length):32}}),i(Object,{getOwnPropertyDescriptors:function(t){var e={};return Object.getOwnPropertyNames(t).forEach(function(n){e[n]=Object.getOwnPropertyDescriptor(t,n)}),e},getPropertyDescriptor:function(t,e){for(var n=Object.getOwnPropertyDescriptor(t,e),r=Object.getPrototypeOf(t);void 0===n&&null!==r;)n=Object.getOwnPropertyDescriptor(r,e),r=Object.getPrototypeOf(r);return n},getPropertyNames:function(t){for(var e=Object.getOwnPropertyNames(t),n=Object.getPrototypeOf(t),r=function(t){-1===e.indexOf(t)&&e.push(t)};null!==n;)Object.getOwnPropertyNames(n).forEach(r),n=Object.getPrototypeOf(n);return e},is:function(t,e){return t===e?0===t?1/t===1/e:!0:t!==t&&e!==e},isnt:function(t,e){return!Object.is(t,e)}}),i(Math,{acosh:function(t){return Math.log(t+Math.sqrt(t*t-1))},asinh:function(t){return Math.log(t+Math.sqrt(t*t+1))},atanh:function(t){return.5*Math.log((1+t)/(1-t))},cosh:function(t){return 0>t&&(t=-t),t>21?Math.exp(t)/2:(Math.exp(t)+Math.exp(-t))/2},expm1:function(t){for(var e=0,r=50,i=1;r>i;i++)e+=Math.pow(t,i)/n(i);return e},hypot:function(t,e){return Math.sqrt(t*t+e*e)||0},log2:function(t){return Math.log(t)*(1/Math.LN2)},log10:function(t){return Math.log(t)*(1/Math.LN10)},log1p:function(t){var e=0,n=50;if(-1>=t)return-1/0;if(0>t||t>1)return Math.log(1+t);for(var r=1;n>r;r++)r%2===0?e-=Math.pow(t,r)/r:e+=Math.pow(t,r)/r;return e},sign:function(t){var e=+t;return 0===e?e:Object.is(e,0/0)?e:0>e?-1:1},sinh:function(t){return(Math.exp(t)-Math.exp(-t))/2},tanh:function(t){return(Math.exp(t)-Math.exp(-t))/(Math.exp(t)+Math.exp(-t))},trunc:function(t){return~~t}}),i(t,{Map:function(){function t(){return this instanceof t?(r(this,"_keys",[]),r(this,"_values",[]),r(this,"_size",0),void Object.defineProperty(this,"size",{configurable:!0,enumerable:!1,get:function(){return this._size}.bind(this)})):new t}var e=function(t,e){for(var n=0,r=t.length;r>n;n++)if(Object.is(t[n],e))return n;return-1};return i(t.prototype,{get:function(t){var n=e(this._keys,t);return 0>n?void 0:this._values[n]},has:function(t){return e(this._keys,t)>=0},set:function(t,n){var r=this._keys,i=this._values,o=e(r,t);0>o&&(o=r.length),r[o]=t,i[o]=n,this._size+=1},"delete":function(t){var n=this._keys,r=this._values,i=e(n,t);return 0>i?!1:(n.splice(i,1),r.splice(i,1),this._size-=1,!0)},keys:function(){return this._keys},values:function(){return this._values}}),t}(),Set:function(){function t(){return this instanceof t?(r(this,"[[SetData]]",new Map),void Object.defineProperty(this,"size",{configurable:!0,enumerable:!1,get:function(){return this["[[SetData]]"].size}.bind(this)})):new t}return i(t.prototype,{has:function(t){return this["[[SetData]]"].has(t)},add:function(t){this["[[SetData]]"].set(t,!0)},"delete":function(t){return this["[[SetData]]"]["delete"](t)},clear:function(){Object.defineProperty(this,"[[SetData]]",{configurable:!0,enumerable:!1,writable:!0,value:new Map})}}),t}()})};"function"==typeof define&&"object"==typeof define.amd&&define.amd?define(main):main();
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.7.0/es6-shim.js b/ajax/libs/es6-shim/0.7.0/es6-shim.js
new file mode 100644
index 000000000..91d40986c
--- /dev/null
+++ b/ajax/libs/es6-shim/0.7.0/es6-shim.js
@@ -0,0 +1,621 @@
+// ES6-shim 0.7.0 (c) 2013 Paul Miller (paulmillr.com)
+// ES6-shim may be freely distributed under the MIT license.
+// For more details and documentation:
+// https://github.com/paulmillr/es6-shim/
+var main = function() {
+  'use strict';
+
+  var globals = (typeof global === 'undefined') ? window : global;
+  var global_isFinite = globals.isFinite;
+  var supportsDescriptors = !!Object.defineProperty;
+
+  // Define configurable, writable and non-enumerable props
+  // if they don’t exist.
+  var defineProperties = function(object, map) {
+    Object.keys(map).forEach(function(name) {
+      var method = map[name];
+      if (name in object) return;
+      if (supportsDescriptors) {
+        Object.defineProperty(object, name, {
+          configurable: true,
+          enumerable: false,
+          writable: true,
+          value: method
+        });
+      } else {
+        object[name] = method;
+      }
+    });
+  };
+
+  var ES = {
+    ToInt32: function(x) {
+      return x >> 0;
+    },
+
+    ToUint32: function(x) {
+      return x >>> 0;
+    }
+  };
+
+  defineProperties(String, {
+    fromCodePoint: function() {
+      var points = arguments;
+      var result = [];
+      var next;
+      for (var i = 0, length = points.length; i < length; i++) {
+        next = Number(points[i]);
+        if (!Object.is(next, Number.toInteger(next)) ||
+            next < 0 || next > 0x10FFFF) {
+          throw new RangeError('Invalid code point ' + next);
+        }
+
+        if (next < 0x10000) {
+          result.push(String.fromCharCode(next));
+        } else {
+          next -= 0x10000;
+          result.push(String.fromCharCode((next >> 10) + 0xD800));
+          result.push(String.fromCharCode((next % 0x400) + 0xDC00));
+        }
+      }
+      return result.join('');
+    }
+  });
+
+  defineProperties(String.prototype, {
+    // Fast repeat, uses the `Exponentiation by squaring` algorithm.
+    repeat: function(times) {
+      times = Number.toInteger(times);
+      if (times < 0 || times === Infinity) {
+        throw new RangeError();
+      }
+      if (times < 1) return '';
+      if (times % 2) return this.repeat(times - 1) + this;
+      var half = this.repeat(times / 2);
+      return half + half;
+    },
+
+    startsWith: function(searchString) {
+      var position = arguments[1];
+      var searchStr = searchString.toString();
+      var s = String(this);
+      var pos = (position === undefined) ? 0 : Number.toInteger(position);
+      var len = s.length;
+      var start = Math.min(Math.max(pos, 0), len);
+      var searchLength = searchString.length;
+      if ((searchLength + start) > len) return false;
+      var index = ''.indexOf.call(s, searchString, start);
+      return index === start;
+    },
+
+    endsWith: function(searchString) {
+      var endPosition = arguments[1];
+      var s = String(this);
+      var searchStr = searchString.toString();
+      var len = s.length;
+      var pos = (endPosition === undefined) ?
+        len : Number.toInteger(endPosition);
+      var end = Math.min(Math.max(pos, 0), len);
+      var searchLength = searchString.length;
+      var start = end - searchLength;
+      if (start < 0) return false;
+      var index = ''.indexOf.call(s, searchString, start);
+      return index === start;
+    },
+
+    contains: function(searchString) {
+      var position = arguments[1];
+
+      // Somehow this trick makes method 100% compat with the spec.
+      return ''.indexOf.call(this, searchString, position) !== -1;
+    },
+
+    codePointAt: function(pos) {
+      var s = String(this);
+      var position = Number.toInteger(pos);
+      var length = s.length;
+      if (position < 0 || position >= length) return undefined;
+      var first = s.charCodeAt(position);
+      var isEnd = (position + 1 === length);
+      if (first < 0xD800 || first > 0xDBFF || isEnd) return first;
+      var second = s.charCodeAt(position + 1);
+      if (second < 0xDC00 || second > 0xDFFF) return first;
+      return ((first - 0xD800) * 1024) + (second - 0xDC00) + 0x10000;
+    }
+  });
+
+  defineProperties(Array, {
+    from: function(iterable) {
+      var mapFn = arguments[1];
+      var thisArg = arguments[2];
+
+      var list = Object(iterable);
+      var length = ES.ToUint32(list.length);
+      var result = typeof this === 'function' ?
+        Object(new this(length)) : new Array(length);
+
+      for (var i = 0; i < length; i++) {
+        var value = list[i];
+        result[i] = mapFn ? mapFn.call(thisArg, value) : value;
+      }
+
+      result.length = length;
+      return result;
+    },
+
+    of: function() {
+      return Array.from(arguments);
+    }
+  });
+
+  defineProperties(Array.prototype, {
+    find: function(predicate) {
+      var list = Object(this);
+      var length = ES.ToUint32(list.length);
+      if (length === 0) return undefined;
+      if (typeof predicate !== 'function') {
+        throw new TypeError('Array#find: predicate must be a function');
+      }
+      var thisArg = arguments[1];
+      for (var i = 0, value; i < length && i in list; i++) {
+        value = list[i];
+        if (predicate.call(thisArg, value, i, list)) return value;
+      }
+      return undefined;
+    },
+
+    findIndex: function(predicate) {
+      var list = Object(this);
+      var length = ES.ToUint32(list.length);
+      if (length === 0) return -1;
+      if (typeof predicate !== 'function') {
+        throw new TypeError('Array#findIndex: predicate must be a function');
+      }
+      var thisArg = arguments[1];
+      for (var i = 0, value; i < length && i in list; i++) {
+        value = list[i];
+        if (predicate.call(thisArg, value, i, list)) return i;
+      }
+      return -1;
+    }
+  });
+
+  defineProperties(Number, {
+    MAX_INTEGER: 9007199254740991,
+    EPSILON: 2.220446049250313e-16,
+
+    parseInt: globals.parseInt,
+    parseFloat: globals.parseFloat,
+
+    isFinite: function(value) {
+      return typeof value === 'number' && global_isFinite(value);
+    },
+
+    isInteger: function(value) {
+      return Number.isFinite(value) &&
+        value >= -9007199254740992 && value <= Number.MAX_INTEGER &&
+        Math.floor(value) === value;
+    },
+
+    isNaN: function(value) {
+      return Object.is(value, NaN);
+    },
+
+    toInteger: function(value) {
+      var number = +value;
+      if (Object.is(number, NaN)) return +0;
+      if (number === 0 || !Number.isFinite(number)) return number;
+      return Math.sign(number) * Math.floor(Math.abs(number));
+    }
+  });
+
+  defineProperties(Number.prototype, {
+    clz: function() {
+      var number = +this;
+      if (!number || !Number.isFinite(number)) return 32;
+      number = number < 0 ? Math.ceil(number) : Math.floor(number);
+      number = number - Math.floor(number / 0x100000000) * 0x100000000;
+      return 32 - (number).toString(2).length;
+    }
+  });
+
+  if (supportsDescriptors) {
+    defineProperties(Object, {
+      getOwnPropertyDescriptors: function(subject) {
+        var descs = {};
+        Object.getOwnPropertyNames(subject).forEach(function(propName) {
+          descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+        });
+        return descs;
+      },
+
+      getPropertyDescriptor: function(subject, name) {
+        var pd = Object.getOwnPropertyDescriptor(subject, name);
+        var proto = Object.getPrototypeOf(subject);
+        while (pd === undefined && proto !== null) {
+          pd = Object.getOwnPropertyDescriptor(proto, name);
+          proto = Object.getPrototypeOf(proto);
+        }
+        return pd;
+      },
+
+      getPropertyNames: function(subject) {
+        var result = Object.getOwnPropertyNames(subject);
+        var proto = Object.getPrototypeOf(subject);
+
+        var addProperty = function(property) {
+          if (result.indexOf(property) === -1) {
+            result.push(property);
+          }
+        };
+
+        while (proto !== null) {
+          Object.getOwnPropertyNames(proto).forEach(addProperty);
+          proto = Object.getPrototypeOf(proto);
+        }
+        return result;
+      },
+
+      // 15.2.3.17
+      assign: function(target, source) {
+        return Object.keys(source).reduce(function(target, key) {
+          target[key] = source[key];
+          return target;
+        }, target);
+      },
+
+      // 15.2.3.18
+      mixin: function(target, source) {
+        var props = Object.getOwnPropertyNames(source);
+        return props.reduce(function(target, property) {
+          var descriptor = Object.getOwnPropertyDescriptor(source, property);
+          return Object.defineProperty(target, property, descriptor);
+        }, target);
+      }
+    });
+  }
+
+  defineProperties(Object, {
+    getOwnPropertyKeys: function(subject) {
+      return Object.keys(subject);
+    },
+
+    is: function(x, y) {
+      if (x === y) {
+        // 0 === -0, but they are not identical.
+        if (x === 0) {
+          return 1 / x === 1 / y;
+        } else {
+          return true;
+        }
+      }
+
+      // NaN !== NaN, but they are identical.
+      // NaNs are the only non-reflexive value, i.e., if x !== x,
+      // then x is a NaN.
+      // isNaN is broken: it converts its argument to number, so
+      // isNaN('foo') => true
+      return x !== x && y !== y;
+    }
+  });
+
+  defineProperties(Math, {
+    acosh: function(value) {
+      if (Number.isNaN(value) || value < 1) {
+        return NaN;
+      } else if (value === 1) {
+        return +0;
+      } else if (value === Infinity) {
+        return Infinity;
+      }
+      return Math.log(value + Math.sqrt(value * value - 1));
+    },
+
+    asinh: function(value) {
+      if (Number.isNaN(value)) {
+        return NaN;
+      } else if (value === 0) {
+        return value;
+      } else if (value === Infinity || value === -Infinity) {
+        return value;
+      }
+      return Math.log(value + Math.sqrt(value * value + 1));
+    },
+
+    atanh: function(value) {
+      if (Number.isNaN(value) || value < -1 || value > 1) {
+        return NaN;
+      } else if (value === -1) {
+        return -Infinity;
+      } else if (value === 1) {
+        return Infinity;
+      } else if (value === 0) {
+        return value;
+      }
+      return 0.5 * Math.log((1 + value) / (1 - value));
+    },
+
+    cbrt: function (value) {
+      if (value === 0) {
+        return value;
+      }
+      var negate = value < 0, result;
+      if (negate) { value = -value; }
+      result = Math.pow(value, 1/3);
+      return negate ? -result : result;
+    },
+
+    cosh: function(value) {
+      if (value === 0) { // +0 or -0
+        return 1;
+      } else if (value === Infinity || value === -Infinity) {
+        return value;
+      } else if (Number.isNaN(value)) {
+        return NaN;
+      }
+      if (value < 0) value = -value;
+      if (value > 21) return Math.exp(value) / 2;
+      return (Math.exp(value) + Math.exp(-value)) / 2;
+    },
+
+    expm1: function(value) {
+      if (Number.isNaN(value)) {
+        return NaN;
+      } else if (value === 0) {
+        return value;
+      } else if (value === Infinity) {
+        return Infinity;
+      } else if (value === -Infinity) {
+        return -1;
+      }
+      var result = 0;
+      var n = 50;
+      for (var i = 1; i < n; i++) {
+        for (var j = 2, factorial = 1; j <= i; j++) {
+          factorial *= j;
+        }
+        result += Math.pow(value, i) / factorial;
+      }
+      return result;
+    },
+
+    hypot: function(x, y, z) {
+      var anyNaN = false;
+      var anyInfinity = false;
+      var allZero = true;
+      [x, y, z].some(function (num) {
+        if (Number.isNaN(num)) {
+          anyNaN = true;
+        } else if (num === Infinity || num === -Infinity) {
+          anyInfinity = true;
+        } else if (num !== 0) {
+          allZero = false;
+        }
+        return anyInfinity || anyNaN;
+      });
+      if (anyInfinity) {
+        return Infinity;
+      } else if (anyNaN) {
+        return NaN;
+      } else if (allZero) {
+        return 0;
+      }
+      if (x == null) x = 0;
+      if (y == null) y = 0;
+      if (z == null) z = 0;
+      return Math.sqrt(x * x + y * y + z * z);
+    },
+
+    log2: function(value) {
+      if (Number.isNaN(value) || value < 0) {
+        return NaN;
+      } else if (value === 0) {
+        return -Infinity;
+      } else if (value === 1) {
+        return 0;
+      } else if (value === Infinity) {
+        return Infinity;
+      }
+      return Math.log(value) * (1 / Math.LN2);
+    },
+
+    log10: function(value) {
+      if (Number.isNaN(value) || value < 0) {
+        return NaN;
+      } else if (value === 0) {
+        return -Infinity;
+      } else if (value === 1) {
+        return 0;
+      } else if (value === Infinity) {
+        return Infinity;
+      }
+      return Math.log(value) * (1 / Math.LN10);
+    },
+
+    log1p: function(value) {
+      if (Number.isNaN(value) || value < -1) {
+        return NaN;
+      } else if (value === -1) {
+        return -Infinity;
+      } else if (value === 0) {
+        return value;
+      } else if (value === Infinity) {
+        return Infinity;
+      }
+      var result = 0;
+      var n = 50;
+
+      if (value < 0 || value > 1) return Math.log(1 + value);
+      for (var i = 1; i < n; i++) {
+        if ((i % 2) === 0) {
+          result -= Math.pow(value, i) / i;
+        } else {
+          result += Math.pow(value, i) / i;
+        }
+      }
+
+      return result;
+    },
+
+    sign: function(value) {
+      var number = +value;
+      if (number === 0) return number;
+      if (Object.is(number, NaN)) return number;
+      return (number < 0) ? -1 : 1;
+    },
+
+    sinh: function(value) {
+      if (Number.isNaN(value)) {
+        return NaN;
+      } else if (value === 0) {
+        return value;
+      } else if (value === Infinity || value === -Infinity) {
+        return value;
+      }
+      return (Math.exp(value) - Math.exp(-value)) / 2;
+    },
+
+    tanh: function(value) {
+      if (Number.isNaN(value)) {
+        return NaN;
+      } else if (value === 0) {
+        return value;
+      } else if (value === Infinity) {
+        return 1;
+      } else if (value === -Infinity) {
+        return -1;
+      }
+      return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+    },
+
+    trunc: function(value) {
+      if (Number.isNaN(value)) {
+        return NaN;
+      } else if (value === Infinity || value === -Infinity) {
+        return value;
+      } else if (value === 0) {
+        return value;
+      }
+      return ~~value;
+    }
+  });
+
+  if (supportsDescriptors) {
+    // Map and Set require a true ES5 environment
+    defineProperties(globals, {
+      Map: (function() {
+        var indexOfIdentical = function(keys, key) {
+          for (var i = 0, length = keys.length; i < length; i++) {
+            if (Object.is(keys[i], key)) return i;
+          }
+          return -1;
+        };
+
+        function Map() {
+          if (!(this instanceof Map)) return new Map();
+
+          defineProperties(this, {
+            '_keys': [],
+            '_values': [],
+            '_size': 0
+          });
+
+          Object.defineProperty(this, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: (function() {
+              return this._size;
+            }).bind(this)
+          });
+        }
+
+        defineProperties(Map.prototype, {
+          get: function(key) {
+            var index = indexOfIdentical(this._keys, key);
+            return index < 0 ? undefined : this._values[index];
+          },
+
+          has: function(key) {
+            return indexOfIdentical(this._keys, key) >= 0;
+          },
+
+          set: function(key, value) {
+            var keys = this._keys;
+            var values = this._values;
+            var index = indexOfIdentical(keys, key);
+            if (index < 0) index = keys.length;
+            keys[index] = key;
+            values[index] = value;
+            this._size += 1;
+          },
+
+          'delete': function(key) {
+            var keys = this._keys;
+            var values = this._values;
+            var index = indexOfIdentical(keys, key);
+            if (index < 0) return false;
+            keys.splice(index, 1);
+            values.splice(index, 1);
+            this._size -= 1;
+            return true;
+          },
+
+          keys: function() {
+            return this._keys;
+          },
+
+          values: function() {
+            return this._values;
+          }
+        });
+
+        return Map;
+      })(),
+
+      Set: (function() {
+        function Set() {
+          if (!(this instanceof Set)) return new Set();
+          defineProperties(this, {'[[SetData]]': new Map()});
+          Object.defineProperty(this, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: (function() {
+              return this['[[SetData]]'].size;
+            }).bind(this)
+          });
+        }
+
+        defineProperties(Set.prototype, {
+          has: function(key) {
+            return this['[[SetData]]'].has(key);
+          },
+
+          add: function(key) {
+            this['[[SetData]]'].set(key, true);
+          },
+
+          'delete': function(key) {
+            return this['[[SetData]]']['delete'](key);
+          },
+
+          clear: function() {
+            Object.defineProperty(this, '[[SetData]]', {
+              configurable: true,
+              enumerable: false,
+              writable: true,
+              value: new Map()
+            });
+          }
+        });
+
+        return Set;
+      })()
+    });
+  }
+};
+
+if (typeof define === 'function' && typeof define.amd == 'object' && define.amd) {
+  define(main); // RequireJS
+} else {
+  main(); // CommonJS and <script>
+}
diff --git a/ajax/libs/es6-shim/0.7.0/es6-shim.min.js b/ajax/libs/es6-shim/0.7.0/es6-shim.min.js
new file mode 100644
index 000000000..336ce3f0b
--- /dev/null
+++ b/ajax/libs/es6-shim/0.7.0/es6-shim.min.js
@@ -0,0 +1 @@
+var main=function(){"use strict";var t="undefined"==typeof global?window:global,e=t.isFinite,r=!!Object.defineProperty,n=function(t,e){Object.keys(e).forEach(function(n){var i=e[n];n in t||(r?Object.defineProperty(t,n,{configurable:!0,enumerable:!1,writable:!0,value:i}):t[n]=i)})},i={ToInt32:function(t){return t>>0},ToUint32:function(t){return t>>>0}};n(String,{fromCodePoint:function(){for(var t,e=arguments,r=[],n=0,i=e.length;i>n;n++){if(t=Number(e[n]),!Object.is(t,Number.toInteger(t))||0>t||t>1114111)throw new RangeError("Invalid code point "+t);65536>t?r.push(String.fromCharCode(t)):(t-=65536,r.push(String.fromCharCode((t>>10)+55296)),r.push(String.fromCharCode(t%1024+56320)))}return r.join("")}}),n(String.prototype,{repeat:function(t){if(t=Number.toInteger(t),0>t||1/0===t)throw new RangeError;if(1>t)return"";if(t%2)return this.repeat(t-1)+this;var e=this.repeat(t/2);return e+e},startsWith:function(t){var e=arguments[1],r=(t.toString(),String(this)),n=void 0===e?0:Number.toInteger(e),i=r.length,o=Math.min(Math.max(n,0),i),u=t.length;if(u+o>i)return!1;var a="".indexOf.call(r,t,o);return a===o},endsWith:function(t){var e=arguments[1],r=String(this),n=(t.toString(),r.length),i=void 0===e?n:Number.toInteger(e),o=Math.min(Math.max(i,0),n),u=t.length,a=o-u;if(0>a)return!1;var f="".indexOf.call(r,t,a);return f===a},contains:function(t){var e=arguments[1];return-1!=="".indexOf.call(this,t,e)},codePointAt:function(t){var e=String(this),r=Number.toInteger(t),n=e.length;if(0>r||r>=n)return void 0;var i=e.charCodeAt(r),o=r+1===n;if(55296>i||i>56319||o)return i;var u=e.charCodeAt(r+1);return 56320>u||u>57343?i:1024*(i-55296)+(u-56320)+65536}}),n(Array,{from:function(t){for(var e=arguments[1],r=arguments[2],n=Object(t),o=i.ToUint32(n.length),u="function"==typeof this?Object(new this(o)):new Array(o),a=0;o>a;a++){var f=n[a];u[a]=e?e.call(r,f):f}return u.length=o,u},of:function(){return Array.from(arguments)}}),n(Array.prototype,{find:function(t){var e=Object(this),r=i.ToUint32(e.length);if(0===r)return void 0;if("function"!=typeof t)throw new TypeError("Array#find: predicate must be a function");for(var n,o=arguments[1],u=0;r>u&&u in e;u++)if(n=e[u],t.call(o,n,u,e))return n;return void 0},findIndex:function(t){var e=Object(this),r=i.ToUint32(e.length);if(0===r)return-1;if("function"!=typeof t)throw new TypeError("Array#findIndex: predicate must be a function");for(var n,o=arguments[1],u=0;r>u&&u in e;u++)if(n=e[u],t.call(o,n,u,e))return u;return-1}}),n(Number,{MAX_INTEGER:9007199254740991,EPSILON:2.220446049250313e-16,parseInt:t.parseInt,parseFloat:t.parseFloat,isFinite:function(t){return"number"==typeof t&&e(t)},isInteger:function(t){return Number.isFinite(t)&&t>=-9007199254740992&&t<=Number.MAX_INTEGER&&Math.floor(t)===t},isNaN:function(t){return Object.is(t,0/0)},toInteger:function(t){var e=+t;return Object.is(e,0/0)?0:0!==e&&Number.isFinite(e)?Math.sign(e)*Math.floor(Math.abs(e)):e}}),n(Number.prototype,{clz:function(){var t=+this;return t&&Number.isFinite(t)?(t=0>t?Math.ceil(t):Math.floor(t),t-=4294967296*Math.floor(t/4294967296),32-t.toString(2).length):32}}),r&&n(Object,{getOwnPropertyDescriptors:function(t){var e={};return Object.getOwnPropertyNames(t).forEach(function(r){e[r]=Object.getOwnPropertyDescriptor(t,r)}),e},getPropertyDescriptor:function(t,e){for(var r=Object.getOwnPropertyDescriptor(t,e),n=Object.getPrototypeOf(t);void 0===r&&null!==n;)r=Object.getOwnPropertyDescriptor(n,e),n=Object.getPrototypeOf(n);return r},getPropertyNames:function(t){for(var e=Object.getOwnPropertyNames(t),r=Object.getPrototypeOf(t),n=function(t){-1===e.indexOf(t)&&e.push(t)};null!==r;)Object.getOwnPropertyNames(r).forEach(n),r=Object.getPrototypeOf(r);return e},assign:function(t,e){return Object.keys(e).reduce(function(t,r){return t[r]=e[r],t},t)},mixin:function(t,e){var r=Object.getOwnPropertyNames(e);return r.reduce(function(t,r){var n=Object.getOwnPropertyDescriptor(e,r);return Object.defineProperty(t,r,n)},t)}}),n(Object,{getOwnPropertyKeys:function(t){return Object.keys(t)},is:function(t,e){return t===e?0===t?1/t===1/e:!0:t!==t&&e!==e}}),n(Math,{acosh:function(t){return Number.isNaN(t)||1>t?0/0:1===t?0:1/0===t?1/0:Math.log(t+Math.sqrt(t*t-1))},asinh:function(t){return Number.isNaN(t)?0/0:0===t?t:1/0===t||t===-1/0?t:Math.log(t+Math.sqrt(t*t+1))},atanh:function(t){return Number.isNaN(t)||-1>t||t>1?0/0:-1===t?-1/0:1===t?1/0:0===t?t:.5*Math.log((1+t)/(1-t))},cbrt:function(t){if(0===t)return t;var e,r=0>t;return r&&(t=-t),e=Math.pow(t,1/3),r?-e:e},cosh:function(t){return 0===t?1:1/0===t||t===-1/0?t:Number.isNaN(t)?0/0:(0>t&&(t=-t),t>21?Math.exp(t)/2:(Math.exp(t)+Math.exp(-t))/2)},expm1:function(t){if(Number.isNaN(t))return 0/0;if(0===t)return t;if(1/0===t)return 1/0;if(t===-1/0)return-1;for(var e=0,r=50,n=1;r>n;n++){for(var i=2,o=1;n>=i;i++)o*=i;e+=Math.pow(t,n)/o}return e},hypot:function(t,e,r){var n=!1,i=!1,o=!0;return[t,e,r].some(function(t){return Number.isNaN(t)?n=!0:1/0===t||t===-1/0?i=!0:0!==t&&(o=!1),i||n}),i?1/0:n?0/0:o?0:(null==t&&(t=0),null==e&&(e=0),null==r&&(r=0),Math.sqrt(t*t+e*e+r*r))},log2:function(t){return Number.isNaN(t)||0>t?0/0:0===t?-1/0:1===t?0:1/0===t?1/0:Math.log(t)*(1/Math.LN2)},log10:function(t){return Number.isNaN(t)||0>t?0/0:0===t?-1/0:1===t?0:1/0===t?1/0:Math.log(t)*(1/Math.LN10)},log1p:function(t){if(Number.isNaN(t)||-1>t)return 0/0;if(-1===t)return-1/0;if(0===t)return t;if(1/0===t)return 1/0;var e=0,r=50;if(0>t||t>1)return Math.log(1+t);for(var n=1;r>n;n++)n%2===0?e-=Math.pow(t,n)/n:e+=Math.pow(t,n)/n;return e},sign:function(t){var e=+t;return 0===e?e:Object.is(e,0/0)?e:0>e?-1:1},sinh:function(t){return Number.isNaN(t)?0/0:0===t?t:1/0===t||t===-1/0?t:(Math.exp(t)-Math.exp(-t))/2},tanh:function(t){return Number.isNaN(t)?0/0:0===t?t:1/0===t?1:t===-1/0?-1:(Math.exp(t)-Math.exp(-t))/(Math.exp(t)+Math.exp(-t))},trunc:function(t){return Number.isNaN(t)?0/0:1/0===t||t===-1/0?t:0===t?t:~~t}}),r&&n(t,{Map:function(){function t(){return this instanceof t?(n(this,{_keys:[],_values:[],_size:0}),void Object.defineProperty(this,"size",{configurable:!0,enumerable:!1,get:function(){return this._size}.bind(this)})):new t}var e=function(t,e){for(var r=0,n=t.length;n>r;r++)if(Object.is(t[r],e))return r;return-1};return n(t.prototype,{get:function(t){var r=e(this._keys,t);return 0>r?void 0:this._values[r]},has:function(t){return e(this._keys,t)>=0},set:function(t,r){var n=this._keys,i=this._values,o=e(n,t);0>o&&(o=n.length),n[o]=t,i[o]=r,this._size+=1},"delete":function(t){var r=this._keys,n=this._values,i=e(r,t);return 0>i?!1:(r.splice(i,1),n.splice(i,1),this._size-=1,!0)},keys:function(){return this._keys},values:function(){return this._values}}),t}(),Set:function(){function t(){return this instanceof t?(n(this,{"[[SetData]]":new Map}),void Object.defineProperty(this,"size",{configurable:!0,enumerable:!1,get:function(){return this["[[SetData]]"].size}.bind(this)})):new t}return n(t.prototype,{has:function(t){return this["[[SetData]]"].has(t)},add:function(t){this["[[SetData]]"].set(t,!0)},"delete":function(t){return this["[[SetData]]"]["delete"](t)},clear:function(){Object.defineProperty(this,"[[SetData]]",{configurable:!0,enumerable:!1,writable:!0,value:new Map})}}),t}()})};"function"==typeof define&&"object"==typeof define.amd&&define.amd?define(main):main();
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.8.0/es6-shim.js b/ajax/libs/es6-shim/0.8.0/es6-shim.js
new file mode 100644
index 000000000..fccece2ff
--- /dev/null
+++ b/ajax/libs/es6-shim/0.8.0/es6-shim.js
@@ -0,0 +1,846 @@
+// ES6-shim 0.8.0 (c) 2013 Paul Miller (paulmillr.com)
+// ES6-shim may be freely distributed under the MIT license.
+// For more details and documentation:
+// https://github.com/paulmillr/es6-shim/
+
+var arePropertyDescriptorsSupported = function () {
+  var attempt = function () {
+    Object.defineProperty({}, 'x', {});
+    return true;
+  };
+  var supported = false;
+  try { supported = attempt(); }
+  catch (e) { /* this is IE 8. */ }
+  return supported;
+};
+
+var main = function() {
+  'use strict';
+
+  var globals = (typeof global === 'undefined') ? window : global;
+  var global_isFinite = globals.isFinite;
+  var supportsDescriptors = !!Object.defineProperty && arePropertyDescriptorsSupported();
+
+  // Define configurable, writable and non-enumerable props
+  // if they don’t exist.
+  var defineProperties = function(object, map) {
+    Object.keys(map).forEach(function(name) {
+      var method = map[name];
+      if (name in object) return;
+      if (supportsDescriptors) {
+        Object.defineProperty(object, name, {
+          configurable: true,
+          enumerable: false,
+          writable: true,
+          value: method
+        });
+      } else {
+        object[name] = method;
+      }
+    });
+  };
+
+  var ES = {
+    ToInt32: function(x) {
+      return x >> 0;
+    },
+
+    ToUint32: function(x) {
+      return x >>> 0;
+    }
+  };
+
+  defineProperties(String, {
+    fromCodePoint: function() {
+      var points = arguments;
+      var result = [];
+      var next;
+      for (var i = 0, length = points.length; i < length; i++) {
+        next = Number(points[i]);
+        if (!Object.is(next, Number.toInteger(next)) ||
+            next < 0 || next > 0x10FFFF) {
+          throw new RangeError('Invalid code point ' + next);
+        }
+
+        if (next < 0x10000) {
+          result.push(String.fromCharCode(next));
+        } else {
+          next -= 0x10000;
+          result.push(String.fromCharCode((next >> 10) + 0xD800));
+          result.push(String.fromCharCode((next % 0x400) + 0xDC00));
+        }
+      }
+      return result.join('');
+    },
+
+    raw: function() {
+      var callSite = arguments[0];
+      var substitutions = Array.prototype.slice.call(arguments, 1);
+      var cooked = Object(callSite);
+      var rawValue = cooked.raw;
+      var raw = Object(rawValue);
+      var len = Object.keys(raw).length;
+      var literalsegments = ES.ToUint32(len);
+      if (literalsegments === 0) {
+        return '';
+      }
+
+      var stringElements = [];
+      var nextIndex = 0;
+      var nextKey, next, nextSeg, nextSub;
+      while (nextIndex < literalsegments) {
+        nextKey = String(nextIndex);
+        next = raw[nextKey];
+        nextSeg = String(next);
+        stringElements.push(nextSeg);
+        if (nextIndex + 1 >= literalsegments) {
+          break;
+        }
+        next = substitutions[nextKey];
+        if (typeof next === 'undefined') {
+          break;
+        }
+        nextSub = String(next);
+        stringElements.push(nextSub);
+        nextIndex++;
+      }
+      return stringElements.join('');
+    }
+  });
+
+  defineProperties(String.prototype, {
+    // Fast repeat, uses the `Exponentiation by squaring` algorithm.
+    // alternative - return new Array(times + 1).join(s);
+    repeat: function(times) {
+      times = Number.toInteger(times);
+      if (times < 0 || times === Infinity) {
+        throw new RangeError();
+      }
+      var s = String(this);
+      if (times < 1) return '';
+      if (times % 2) return s.repeat(times - 1) + s;
+      var half = s.repeat(times / 2);
+      return half + half;
+    },
+
+    startsWith: function(searchString) {
+      var position = arguments[1];
+      var searchStr = searchString.toString();
+      var s = String(this);
+      var pos = (position === undefined) ? 0 : Number.toInteger(position);
+      var len = s.length;
+      var start = Math.min(Math.max(pos, 0), len);
+      var searchLength = searchString.length;
+      if ((searchLength + start) > len) return false;
+      var index = ''.indexOf.call(s, searchString, start);
+      return index === start;
+    },
+
+    endsWith: function(searchString) {
+      var endPosition = arguments[1];
+      var s = String(this);
+      var searchStr = searchString.toString();
+      var len = s.length;
+      var pos = (endPosition === undefined) ?
+        len : Number.toInteger(endPosition);
+      var end = Math.min(Math.max(pos, 0), len);
+      var searchLength = searchString.length;
+      var start = end - searchLength;
+      if (start < 0) return false;
+      var index = ''.indexOf.call(s, searchString, start);
+      return index === start;
+    },
+
+    contains: function(searchString) {
+      var position = arguments[1];
+
+      // Somehow this trick makes method 100% compat with the spec.
+      return ''.indexOf.call(this, searchString, position) !== -1;
+    },
+
+    codePointAt: function(pos) {
+      var s = String(this);
+      var position = Number.toInteger(pos);
+      var length = s.length;
+      if (position < 0 || position >= length) return undefined;
+      var first = s.charCodeAt(position);
+      var isEnd = (position + 1 === length);
+      if (first < 0xD800 || first > 0xDBFF || isEnd) return first;
+      var second = s.charCodeAt(position + 1);
+      if (second < 0xDC00 || second > 0xDFFF) return first;
+      return ((first - 0xD800) * 1024) + (second - 0xDC00) + 0x10000;
+    }
+  });
+
+  defineProperties(Array, {
+    from: function(iterable) {
+      var mapFn = arguments[1];
+      var thisArg = arguments[2];
+
+      var list = Object(iterable);
+      var length = ES.ToUint32(list.length);
+      var result = typeof this === 'function' ?
+        Object(new this(length)) : new Array(length);
+
+      for (var i = 0; i < length; i++) {
+        var value = list[i];
+        result[i] = mapFn ? mapFn.call(thisArg, value) : value;
+      }
+
+      result.length = length;
+      return result;
+    },
+
+    of: function() {
+      return Array.from(arguments);
+    }
+  });
+
+  defineProperties(Array.prototype, {
+    find: function(predicate) {
+      var list = Object(this);
+      var length = ES.ToUint32(list.length);
+      if (length === 0) return undefined;
+      if (typeof predicate !== 'function') {
+        throw new TypeError('Array#find: predicate must be a function');
+      }
+      var thisArg = arguments[1];
+      for (var i = 0, value; i < length && i in list; i++) {
+        value = list[i];
+        if (predicate.call(thisArg, value, i, list)) return value;
+      }
+      return undefined;
+    },
+
+    findIndex: function(predicate) {
+      var list = Object(this);
+      var length = ES.ToUint32(list.length);
+      if (length === 0) return -1;
+      if (typeof predicate !== 'function') {
+        throw new TypeError('Array#findIndex: predicate must be a function');
+      }
+      var thisArg = arguments[1];
+      for (var i = 0, value; i < length && i in list; i++) {
+        value = list[i];
+        if (predicate.call(thisArg, value, i, list)) return i;
+      }
+      return -1;
+    }
+  });
+
+  defineProperties(Number, {
+    MAX_INTEGER: 9007199254740991,
+    EPSILON: 2.220446049250313e-16,
+
+    parseInt: globals.parseInt,
+    parseFloat: globals.parseFloat,
+
+    isFinite: function(value) {
+      return typeof value === 'number' && global_isFinite(value);
+    },
+
+    isInteger: function(value) {
+      return Number.isFinite(value) &&
+        value >= -9007199254740992 && value <= Number.MAX_INTEGER &&
+        Math.floor(value) === value;
+    },
+
+    isNaN: function(value) {
+      return Object.is(value, NaN);
+    },
+
+    toInteger: function(value) {
+      var number = +value;
+      if (Object.is(number, NaN)) return +0;
+      if (number === 0 || !Number.isFinite(number)) return number;
+      return Math.sign(number) * Math.floor(Math.abs(number));
+    }
+  });
+
+  defineProperties(Number.prototype, {
+    clz: function() {
+      var number = +this;
+      if (!number || !Number.isFinite(number)) return 32;
+      number = number < 0 ? Math.ceil(number) : Math.floor(number);
+      number = number - Math.floor(number / 0x100000000) * 0x100000000;
+      return 32 - (number).toString(2).length;
+    }
+  });
+
+  if (supportsDescriptors) {
+    defineProperties(Object, {
+      getOwnPropertyDescriptors: function(subject) {
+        var descs = {};
+        Object.getOwnPropertyNames(subject).forEach(function(propName) {
+          descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+        });
+        return descs;
+      },
+
+      getPropertyDescriptor: function(subject, name) {
+        var pd = Object.getOwnPropertyDescriptor(subject, name);
+        var proto = Object.getPrototypeOf(subject);
+        while (pd === undefined && proto !== null) {
+          pd = Object.getOwnPropertyDescriptor(proto, name);
+          proto = Object.getPrototypeOf(proto);
+        }
+        return pd;
+      },
+
+      getPropertyNames: function(subject) {
+        var result = Object.getOwnPropertyNames(subject);
+        var proto = Object.getPrototypeOf(subject);
+
+        var addProperty = function(property) {
+          if (result.indexOf(property) === -1) {
+            result.push(property);
+          }
+        };
+
+        while (proto !== null) {
+          Object.getOwnPropertyNames(proto).forEach(addProperty);
+          proto = Object.getPrototypeOf(proto);
+        }
+        return result;
+      },
+
+      // 15.2.3.17
+      assign: function(target, source) {
+        return Object.keys(source).reduce(function(target, key) {
+          target[key] = source[key];
+          return target;
+        }, target);
+      },
+
+      // 15.2.3.18
+      mixin: function(target, source) {
+        var props = Object.getOwnPropertyNames(source);
+        return props.reduce(function(target, property) {
+          var descriptor = Object.getOwnPropertyDescriptor(source, property);
+          return Object.defineProperty(target, property, descriptor);
+        }, target);
+      }
+    });
+
+    // 15.2.3.2
+    // shim from https://gist.github.com/WebReflection/5593554
+    defineProperties(Object, {
+      setPrototypeOf: (function(Object, magic) {
+        var set;
+
+        var checkArgs = function(O, proto) {
+          if (typeof O !== 'object' || O === null) {
+            throw new TypeError('can not set prototype on a non-object');
+          }
+          if (typeof proto !== 'object' && proto !== null) {
+            throw new TypeError('can only set prototype to an object or null');
+          }
+        };
+
+        var setPrototypeOf = function(O, proto) {
+          checkArgs(O, proto);
+          set.call(O, proto);
+          return O;
+        };
+
+        try {
+          // this works already in Firefox and Safari
+          set = Object.getOwnPropertyDescriptor(Object.prototype, magic).set;
+          set.call({}, null);
+        } catch (e) {
+          if (Object.prototype !== {}[magic]) {
+            // IE < 11 cannot be shimmed
+            return;
+          }
+          // probably Chrome or some old Mobile stock browser
+          set = function(proto) {
+            this[magic] = proto;
+          };
+          // please note that this will **not** work
+          // in those browsers that do not inherit
+          // __proto__ by mistake from Object.prototype
+          // in these cases we should probably throw an error
+          // or at least be informed about the issue
+          setPrototypeOf.polyfill = setPrototypeOf(
+            setPrototypeOf({}, null),
+            Object.prototype
+          ) instanceof Object;
+          // setPrototypeOf.polyfill === true means it works as meant
+          // setPrototypeOf.polyfill === false means it's not 100% reliable
+          // setPrototypeOf.polyfill === undefined
+          // or
+          // setPrototypeOf.polyfill ==  null means it's not a polyfill
+          // which means it works as expected
+          // we can even delete Object.prototype.__proto__;
+        }
+        return setPrototypeOf;
+      })(Object, '__proto__')
+    });
+  }
+
+  defineProperties(Object, {
+    getOwnPropertyKeys: function(subject) {
+      return Object.keys(subject);
+    },
+
+    is: function(x, y) {
+      if (x === y) {
+        // 0 === -0, but they are not identical.
+        if (x === 0) {
+          return 1 / x === 1 / y;
+        } else {
+          return true;
+        }
+      }
+
+      // NaN !== NaN, but they are identical.
+      // NaNs are the only non-reflexive value, i.e., if x !== x,
+      // then x is a NaN.
+      // isNaN is broken: it converts its argument to number, so
+      // isNaN('foo') => true
+      return x !== x && y !== y;
+    }
+  });
+
+  defineProperties(Math, {
+    acosh: function(value) {
+      if (Number.isNaN(value) || value < 1) {
+        return NaN;
+      } else if (value === 1) {
+        return +0;
+      } else if (value === Infinity) {
+        return Infinity;
+      }
+      return Math.log(value + Math.sqrt(value * value - 1));
+    },
+
+    asinh: function(value) {
+      if (Number.isNaN(value)) {
+        return NaN;
+      } else if (value === 0) {
+        return value;
+      } else if (value === Infinity || value === -Infinity) {
+        return value;
+      }
+      return Math.log(value + Math.sqrt(value * value + 1));
+    },
+
+    atanh: function(value) {
+      if (Number.isNaN(value) || value < -1 || value > 1) {
+        return NaN;
+      } else if (value === -1) {
+        return -Infinity;
+      } else if (value === 1) {
+        return Infinity;
+      } else if (value === 0) {
+        return value;
+      }
+      return 0.5 * Math.log((1 + value) / (1 - value));
+    },
+
+    cbrt: function (value) {
+      if (value === 0) {
+        return value;
+      }
+      var negate = value < 0, result;
+      if (negate) { value = -value; }
+      result = Math.pow(value, 1/3);
+      return negate ? -result : result;
+    },
+
+    cosh: function(value) {
+      if (value === 0) { // +0 or -0
+        return 1;
+      } else if (value === Infinity || value === -Infinity) {
+        return value;
+      } else if (Number.isNaN(value)) {
+        return NaN;
+      }
+      if (value < 0) value = -value;
+      if (value > 21) return Math.exp(value) / 2;
+      return (Math.exp(value) + Math.exp(-value)) / 2;
+    },
+
+    expm1: function(value) {
+      if (Number.isNaN(value)) {
+        return NaN;
+      } else if (value === 0) {
+        return value;
+      } else if (value === Infinity) {
+        return Infinity;
+      } else if (value === -Infinity) {
+        return -1;
+      }
+      var result = 0;
+      var n = 50;
+      for (var i = 1; i < n; i++) {
+        for (var j = 2, factorial = 1; j <= i; j++) {
+          factorial *= j;
+        }
+        result += Math.pow(value, i) / factorial;
+      }
+      return result;
+    },
+
+    hypot: function(x, y, z) {
+      var anyNaN = false;
+      var anyInfinity = false;
+      var allZero = true;
+      [x, y, z].some(function (num) {
+        if (Number.isNaN(num)) {
+          anyNaN = true;
+        } else if (num === Infinity || num === -Infinity) {
+          anyInfinity = true;
+        } else if (num !== 0) {
+          allZero = false;
+        }
+        return anyInfinity || anyNaN;
+      });
+      if (anyInfinity) {
+        return Infinity;
+      } else if (anyNaN) {
+        return NaN;
+      } else if (allZero) {
+        return 0;
+      }
+      if (x == null) x = 0;
+      if (y == null) y = 0;
+      if (z == null) z = 0;
+      return Math.sqrt(x * x + y * y + z * z);
+    },
+
+    log2: function(value) {
+      if (Number.isNaN(value) || value < 0) {
+        return NaN;
+      } else if (value === 0) {
+        return -Infinity;
+      } else if (value === 1) {
+        return 0;
+      } else if (value === Infinity) {
+        return Infinity;
+      }
+      return Math.log(value) * (1 / Math.LN2);
+    },
+
+    log10: function(value) {
+      if (Number.isNaN(value) || value < 0) {
+        return NaN;
+      } else if (value === 0) {
+        return -Infinity;
+      } else if (value === 1) {
+        return 0;
+      } else if (value === Infinity) {
+        return Infinity;
+      }
+      return Math.log(value) * (1 / Math.LN10);
+    },
+
+    log1p: function(value) {
+      if (Number.isNaN(value) || value < -1) {
+        return NaN;
+      } else if (value === -1) {
+        return -Infinity;
+      } else if (value === 0) {
+        return value;
+      } else if (value === Infinity) {
+        return Infinity;
+      }
+      var result = 0;
+      var n = 50;
+
+      if (value < 0 || value > 1) return Math.log(1 + value);
+      for (var i = 1; i < n; i++) {
+        if ((i % 2) === 0) {
+          result -= Math.pow(value, i) / i;
+        } else {
+          result += Math.pow(value, i) / i;
+        }
+      }
+
+      return result;
+    },
+
+    sign: function(value) {
+      var number = +value;
+      if (number === 0) return number;
+      if (Object.is(number, NaN)) return number;
+      return (number < 0) ? -1 : 1;
+    },
+
+    sinh: function(value) {
+      if (Number.isNaN(value)) {
+        return NaN;
+      } else if (value === 0) {
+        return value;
+      } else if (value === Infinity || value === -Infinity) {
+        return value;
+      }
+      return (Math.exp(value) - Math.exp(-value)) / 2;
+    },
+
+    tanh: function(value) {
+      if (Number.isNaN(value)) {
+        return NaN;
+      } else if (value === 0) {
+        return value;
+      } else if (value === Infinity) {
+        return 1;
+      } else if (value === -Infinity) {
+        return -1;
+      }
+      return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+    },
+
+    trunc: function(value) {
+      if (Number.isNaN(value)) {
+        return NaN;
+      } else if (value === Infinity || value === -Infinity) {
+        return value;
+      } else if (value === 0) {
+        return value;
+      }
+      return ~~value;
+    }
+  });
+
+  if (supportsDescriptors) {
+    // Map and Set require a true ES5 environment
+    var collectionShims = {
+      Map: (function() {
+
+        var empty = {};
+
+        function MapEntry(key, value) {
+          this.key = key;
+          this.value = value;
+          this.next = null;
+        }
+
+        MapEntry.prototype.isRemoved = function () {
+          return this.key === empty;
+        };
+
+        function MapIterator(map, kind) {
+          this.i = map._head;
+          this.kind = kind;
+        }
+
+        MapIterator.prototype = {
+          next: function () {
+            var i = this.i;
+            if (i !== null) {
+              while (i.isRemoved()) {
+                i = i.next;
+              }
+              i = i.next;
+              this.i = i;
+            }
+            if (i === null) {
+              throw new Error();
+            }
+            var kind = this.kind;
+            if (kind === "key") {
+              return i.key;
+            }
+            if (kind === "value") {
+              return i.value;
+            }
+            return [i.key, i.value];
+          }
+        };
+
+        function Map() {
+          if (!(this instanceof Map)) return new Map();
+
+          var head = new MapEntry(null, null);
+
+          defineProperties(this, {
+            '_head': head,
+            '_size': 0
+          });
+
+          Object.defineProperty(this, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: (function() {
+              return this._size;
+            }).bind(this)
+          });
+        }
+
+        defineProperties(Map.prototype, {
+          get: function(key) {
+            var i = this._head;
+            while ((i = i.next) !== null) {
+              if (Object.is(i.key, key)) {
+                return i.value;
+              }
+            }
+            return undefined;
+          },
+
+          has: function(key) {
+            var i = this._head;
+            while ((i = i.next) !== null) {
+              if (Object.is(i.key, key)) {
+                return true;
+              }
+            }
+            return false;
+          },
+
+          set: function(key, value) {
+            var i = this._head;
+            var p = i;
+            while ((i = i.next) !== null) {
+              if (Object.is(i.key, key)) {
+                i.value = value;
+                return;
+              }
+              p = i;
+            }
+            var entry = new MapEntry(key, value);
+            p.next = entry;
+            this._size += 1;
+          },
+
+          'delete': function(key) {
+            var i = this._head;
+            var p = i;
+            while ((i = i.next) !== null) {
+              if (Object.is(i.key, key)) {
+                p.next = i.next;
+                i.key = empty;
+                i.value = empty;
+                i.next = p;
+                this._size -= 1;
+                return true;
+              }
+              p = i;
+            }
+            return false;
+          },
+
+          clear: function () {
+            var p = this._head;
+            var i = p.next;
+            this._size = 0;
+            p.next = null;
+            while (i !== null) {
+              var x = i.next;
+              i.key = empty;
+              i.value = empty;
+              i.next = p;
+              i = x;
+            }
+          },
+
+          keys: function() {
+            return new MapIterator(this, "key");
+          },
+
+          values: function() {
+            return new MapIterator(this, "value");
+          },
+
+          entries: function() {
+            return new MapIterator(this, "key+value");
+          },
+
+          forEach: function(callback) {
+            var context = arguments.length > 1 ? arguments[1] : null;
+            var entireMap = this;
+
+            var i = this._head;
+            while ((i = i.next) !== null) {
+              callback.call(context, i.value, i.key, entireMap);
+              while (i.isRemoved()) {
+                i = i.next;
+              }
+            }
+          }
+        });
+
+        return Map;
+      })(),
+
+      Set: (function() {
+        var SetShim = function Set() {
+          if (!(this instanceof SetShim)) return new SetShim();
+          defineProperties(this, {'[[SetData]]': new Map()});
+          Object.defineProperty(this, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: (function() {
+              return this['[[SetData]]'].size;
+            }).bind(this)
+          });
+        }
+
+        defineProperties(SetShim.prototype, {
+          has: function(key) {
+            return this['[[SetData]]'].has(key);
+          },
+
+          add: function(key) {
+            return this['[[SetData]]'].set(key, key);
+          },
+
+          'delete': function(key) {
+            return this['[[SetData]]']['delete'](key);
+          },
+
+          clear: function() {
+            return this['[[SetData]]'].clear();
+          },
+
+          keys: function() {
+            return this['[[SetData]]'].keys();
+          },
+
+          values: function() {
+            return this['[[SetData]]'].values();
+          },
+
+          entries: function() {
+            return this['[[SetData]]'].entries();
+          },
+
+          forEach: function (callback) {
+            var context = arguments.length > 1 ? arguments[1] : null;
+            var entireSet = this;
+            this['[[SetData]]'].forEach(function (value, key) {
+              callback.call(context, key, key, entireSet);
+            });
+          }
+        });
+
+        return SetShim;
+      })()
+    };
+    defineProperties(globals, collectionShims);
+
+    if (globals.Map || globals.Set) {
+      /*
+        - In Firefox < 23, Map#size is a function.
+        - In all current Firefox, Set#entries/keys/values & Map#clear do not exist
+          - https://bugzilla.mozilla.org/show_bug.cgi?id=869996
+      */
+      var hasNoMapClear = typeof globals.Map.prototype.clear !== 'function';
+      var setSizeIsFunc = typeof (new globals.Set()).size !== 0;
+      var mapSizeIsFunc = typeof (new globals.Map()).size !== 0;
+      var hasNoSetKeys = typeof Set.prototype.keys !== 'function';
+      if (hasNoMapClear || setSizeIsFunc || mapSizeIsFunc || hasNoSetKeys) {
+        globals.Map = collectionShims.Map;
+        globals.Set = collectionShims.Set;
+      }
+    }
+  }
+};
+
+if (typeof define === 'function' && typeof define.amd == 'object' && define.amd) {
+  define(main); // RequireJS
+} else {
+  main(); // CommonJS and <script>
+}
+
diff --git a/ajax/libs/es6-shim/0.8.0/es6-shim.min.js b/ajax/libs/es6-shim/0.8.0/es6-shim.min.js
new file mode 100644
index 000000000..af9492550
--- /dev/null
+++ b/ajax/libs/es6-shim/0.8.0/es6-shim.min.js
@@ -0,0 +1 @@
+var arePropertyDescriptorsSupported=function(){var t=function(){return Object.defineProperty({},"x",{}),!0},e=!1;try{e=t()}catch(r){}return e},main=function(){"use strict";var t="undefined"==typeof global?window:global,e=t.isFinite,r=!!Object.defineProperty&&arePropertyDescriptorsSupported(),n=function(t,e){Object.keys(e).forEach(function(n){var i=e[n];n in t||(r?Object.defineProperty(t,n,{configurable:!0,enumerable:!1,writable:!0,value:i}):t[n]=i)})},i={ToInt32:function(t){return t>>0},ToUint32:function(t){return t>>>0}};if(n(String,{fromCodePoint:function(){for(var t,e=arguments,r=[],n=0,i=e.length;i>n;n++){if(t=Number(e[n]),!Object.is(t,Number.toInteger(t))||0>t||t>1114111)throw new RangeError("Invalid code point "+t);65536>t?r.push(String.fromCharCode(t)):(t-=65536,r.push(String.fromCharCode((t>>10)+55296)),r.push(String.fromCharCode(t%1024+56320)))}return r.join("")},raw:function(){var t=arguments[0],e=Array.prototype.slice.call(arguments,1),r=Object(t),n=r.raw,o=Object(n),u=Object.keys(o).length,a=i.ToUint32(u);if(0===a)return"";for(var f,c,s,h,l=[],p=0;a>p&&(f=String(p),c=o[f],s=String(c),l.push(s),!(p+1>=a))&&(c=e[f],"undefined"!=typeof c);)h=String(c),l.push(h),p++;return l.join("")}}),n(String.prototype,{repeat:function(t){if(t=Number.toInteger(t),0>t||1/0===t)throw new RangeError;var e=String(this);if(1>t)return"";if(t%2)return e.repeat(t-1)+e;var r=e.repeat(t/2);return r+r},startsWith:function(t){var e=arguments[1],r=(t.toString(),String(this)),n=void 0===e?0:Number.toInteger(e),i=r.length,o=Math.min(Math.max(n,0),i),u=t.length;if(u+o>i)return!1;var a="".indexOf.call(r,t,o);return a===o},endsWith:function(t){var e=arguments[1],r=String(this),n=(t.toString(),r.length),i=void 0===e?n:Number.toInteger(e),o=Math.min(Math.max(i,0),n),u=t.length,a=o-u;if(0>a)return!1;var f="".indexOf.call(r,t,a);return f===a},contains:function(t){var e=arguments[1];return-1!=="".indexOf.call(this,t,e)},codePointAt:function(t){var e=String(this),r=Number.toInteger(t),n=e.length;if(0>r||r>=n)return void 0;var i=e.charCodeAt(r),o=r+1===n;if(55296>i||i>56319||o)return i;var u=e.charCodeAt(r+1);return 56320>u||u>57343?i:1024*(i-55296)+(u-56320)+65536}}),n(Array,{from:function(t){for(var e=arguments[1],r=arguments[2],n=Object(t),o=i.ToUint32(n.length),u="function"==typeof this?Object(new this(o)):new Array(o),a=0;o>a;a++){var f=n[a];u[a]=e?e.call(r,f):f}return u.length=o,u},of:function(){return Array.from(arguments)}}),n(Array.prototype,{find:function(t){var e=Object(this),r=i.ToUint32(e.length);if(0===r)return void 0;if("function"!=typeof t)throw new TypeError("Array#find: predicate must be a function");for(var n,o=arguments[1],u=0;r>u&&u in e;u++)if(n=e[u],t.call(o,n,u,e))return n;return void 0},findIndex:function(t){var e=Object(this),r=i.ToUint32(e.length);if(0===r)return-1;if("function"!=typeof t)throw new TypeError("Array#findIndex: predicate must be a function");for(var n,o=arguments[1],u=0;r>u&&u in e;u++)if(n=e[u],t.call(o,n,u,e))return u;return-1}}),n(Number,{MAX_INTEGER:9007199254740991,EPSILON:2.220446049250313e-16,parseInt:t.parseInt,parseFloat:t.parseFloat,isFinite:function(t){return"number"==typeof t&&e(t)},isInteger:function(t){return Number.isFinite(t)&&t>=-9007199254740992&&t<=Number.MAX_INTEGER&&Math.floor(t)===t},isNaN:function(t){return Object.is(t,0/0)},toInteger:function(t){var e=+t;return Object.is(e,0/0)?0:0!==e&&Number.isFinite(e)?Math.sign(e)*Math.floor(Math.abs(e)):e}}),n(Number.prototype,{clz:function(){var t=+this;return t&&Number.isFinite(t)?(t=0>t?Math.ceil(t):Math.floor(t),t-=4294967296*Math.floor(t/4294967296),32-t.toString(2).length):32}}),r&&(n(Object,{getOwnPropertyDescriptors:function(t){var e={};return Object.getOwnPropertyNames(t).forEach(function(r){e[r]=Object.getOwnPropertyDescriptor(t,r)}),e},getPropertyDescriptor:function(t,e){for(var r=Object.getOwnPropertyDescriptor(t,e),n=Object.getPrototypeOf(t);void 0===r&&null!==n;)r=Object.getOwnPropertyDescriptor(n,e),n=Object.getPrototypeOf(n);return r},getPropertyNames:function(t){for(var e=Object.getOwnPropertyNames(t),r=Object.getPrototypeOf(t),n=function(t){-1===e.indexOf(t)&&e.push(t)};null!==r;)Object.getOwnPropertyNames(r).forEach(n),r=Object.getPrototypeOf(r);return e},assign:function(t,e){return Object.keys(e).reduce(function(t,r){return t[r]=e[r],t},t)},mixin:function(t,e){var r=Object.getOwnPropertyNames(e);return r.reduce(function(t,r){var n=Object.getOwnPropertyDescriptor(e,r);return Object.defineProperty(t,r,n)},t)}}),n(Object,{setPrototypeOf:function(t,e){var r,n=function(t,e){if("object"!=typeof t||null===t)throw new TypeError("can not set prototype on a non-object");if("object"!=typeof e&&null!==e)throw new TypeError("can only set prototype to an object or null")},i=function(t,e){return n(t,e),r.call(t,e),t};try{r=t.getOwnPropertyDescriptor(t.prototype,e).set,r.call({},null)}catch(o){if(t.prototype!=={}[e])return;r=function(t){this[e]=t},i.polyfill=i(i({},null),t.prototype)instanceof t}return i}(Object,"__proto__")})),n(Object,{getOwnPropertyKeys:function(t){return Object.keys(t)},is:function(t,e){return t===e?0===t?1/t===1/e:!0:t!==t&&e!==e}}),n(Math,{acosh:function(t){return Number.isNaN(t)||1>t?0/0:1===t?0:1/0===t?1/0:Math.log(t+Math.sqrt(t*t-1))},asinh:function(t){return Number.isNaN(t)?0/0:0===t?t:1/0===t||t===-1/0?t:Math.log(t+Math.sqrt(t*t+1))},atanh:function(t){return Number.isNaN(t)||-1>t||t>1?0/0:-1===t?-1/0:1===t?1/0:0===t?t:.5*Math.log((1+t)/(1-t))},cbrt:function(t){if(0===t)return t;var e,r=0>t;return r&&(t=-t),e=Math.pow(t,1/3),r?-e:e},cosh:function(t){return 0===t?1:1/0===t||t===-1/0?t:Number.isNaN(t)?0/0:(0>t&&(t=-t),t>21?Math.exp(t)/2:(Math.exp(t)+Math.exp(-t))/2)},expm1:function(t){if(Number.isNaN(t))return 0/0;if(0===t)return t;if(1/0===t)return 1/0;if(t===-1/0)return-1;for(var e=0,r=50,n=1;r>n;n++){for(var i=2,o=1;n>=i;i++)o*=i;e+=Math.pow(t,n)/o}return e},hypot:function(t,e,r){var n=!1,i=!1,o=!0;return[t,e,r].some(function(t){return Number.isNaN(t)?n=!0:1/0===t||t===-1/0?i=!0:0!==t&&(o=!1),i||n}),i?1/0:n?0/0:o?0:(null==t&&(t=0),null==e&&(e=0),null==r&&(r=0),Math.sqrt(t*t+e*e+r*r))},log2:function(t){return Number.isNaN(t)||0>t?0/0:0===t?-1/0:1===t?0:1/0===t?1/0:Math.log(t)*(1/Math.LN2)},log10:function(t){return Number.isNaN(t)||0>t?0/0:0===t?-1/0:1===t?0:1/0===t?1/0:Math.log(t)*(1/Math.LN10)},log1p:function(t){if(Number.isNaN(t)||-1>t)return 0/0;if(-1===t)return-1/0;if(0===t)return t;if(1/0===t)return 1/0;var e=0,r=50;if(0>t||t>1)return Math.log(1+t);for(var n=1;r>n;n++)n%2===0?e-=Math.pow(t,n)/n:e+=Math.pow(t,n)/n;return e},sign:function(t){var e=+t;return 0===e?e:Object.is(e,0/0)?e:0>e?-1:1},sinh:function(t){return Number.isNaN(t)?0/0:0===t?t:1/0===t||t===-1/0?t:(Math.exp(t)-Math.exp(-t))/2},tanh:function(t){return Number.isNaN(t)?0/0:0===t?t:1/0===t?1:t===-1/0?-1:(Math.exp(t)-Math.exp(-t))/(Math.exp(t)+Math.exp(-t))},trunc:function(t){return Number.isNaN(t)?0/0:1/0===t||t===-1/0?t:0===t?t:~~t}}),r){var o={Map:function(){function t(t,e){this.key=t,this.value=e,this.next=null}function e(t,e){this.i=t._head,this.kind=e}function r(){if(!(this instanceof r))return new r;var e=new t(null,null);n(this,{_head:e,_size:0}),Object.defineProperty(this,"size",{configurable:!0,enumerable:!1,get:function(){return this._size}.bind(this)})}var i={};return t.prototype.isRemoved=function(){return this.key===i},e.prototype={next:function(){var t=this.i;if(null!==t){for(;t.isRemoved();)t=t.next;t=t.next,this.i=t}if(null===t)throw new Error;var e=this.kind;return"key"===e?t.key:"value"===e?t.value:[t.key,t.value]}},n(r.prototype,{get:function(t){for(var e=this._head;null!==(e=e.next);)if(Object.is(e.key,t))return e.value;return void 0},has:function(t){for(var e=this._head;null!==(e=e.next);)if(Object.is(e.key,t))return!0;return!1},set:function(e,r){for(var n=this._head,i=n;null!==(n=n.next);){if(Object.is(n.key,e))return void(n.value=r);i=n}var o=new t(e,r);i.next=o,this._size+=1},"delete":function(t){for(var e=this._head,r=e;null!==(e=e.next);){if(Object.is(e.key,t))return r.next=e.next,e.key=i,e.value=i,e.next=r,this._size-=1,!0;r=e}return!1},clear:function(){var t=this._head,e=t.next;for(this._size=0,t.next=null;null!==e;){var r=e.next;e.key=i,e.value=i,e.next=t,e=r}},keys:function(){return new e(this,"key")},values:function(){return new e(this,"value")},entries:function(){return new e(this,"key+value")},forEach:function(t){for(var e=arguments.length>1?arguments[1]:null,r=this,n=this._head;null!==(n=n.next);)for(t.call(e,n.value,n.key,r);n.isRemoved();)n=n.next}}),r}(),Set:function(){var t=function(){return this instanceof t?(n(this,{"[[SetData]]":new Map}),void Object.defineProperty(this,"size",{configurable:!0,enumerable:!1,get:function(){return this["[[SetData]]"].size}.bind(this)})):new t};return n(t.prototype,{has:function(t){return this["[[SetData]]"].has(t)},add:function(t){return this["[[SetData]]"].set(t,t)},"delete":function(t){return this["[[SetData]]"]["delete"](t)},clear:function(){return this["[[SetData]]"].clear()},keys:function(){return this["[[SetData]]"].keys()},values:function(){return this["[[SetData]]"].values()},entries:function(){return this["[[SetData]]"].entries()},forEach:function(t){var e=arguments.length>1?arguments[1]:null,r=this;this["[[SetData]]"].forEach(function(n,i){t.call(e,i,i,r)})}}),t}()};if(n(t,o),t.Map||t.Set){var u="function"!=typeof t.Map.prototype.clear,a=0!==typeof(new t.Set).size,f=0!==typeof(new t.Map).size,c="function"!=typeof Set.prototype.keys;(u||a||f||c)&&(t.Map=o.Map,t.Set=o.Set)}}};"function"==typeof define&&"object"==typeof define.amd&&define.amd?define(main):main();
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.9.0/es6-shim.js b/ajax/libs/es6-shim/0.9.0/es6-shim.js
new file mode 100644
index 000000000..fee412371
--- /dev/null
+++ b/ajax/libs/es6-shim/0.9.0/es6-shim.js
@@ -0,0 +1,857 @@
+// ES6-shim 0.9.0 (c) 2013 Paul Miller (paulmillr.com)
+// ES6-shim may be freely distributed under the MIT license.
+// For more details and documentation:
+// https://github.com/paulmillr/es6-shim/
+
+(function(undefined) {
+  'use strict';
+
+  var arePropertyDescriptorsSupported = function() {
+    try {
+      Object.defineProperty({}, 'x', {});
+      return true;
+    } catch (e) { /* this is IE 8. */
+      return false;
+    }
+  };
+
+  var main = function() {
+    var globals = (typeof global === 'undefined') ? window : global;
+    var global_isFinite = globals.isFinite;
+    var supportsDescriptors = !!Object.defineProperty && arePropertyDescriptorsSupported();
+    var _slice = Array.prototype.slice;
+    var _indexOf = String.prototype.indexOf;
+    var _toString = Object.prototype.toString;
+
+    // Define configurable, writable and non-enumerable props
+    // if they don’t exist.
+    var defineProperties = function(object, map) {
+      Object.keys(map).forEach(function(name) {
+        var method = map[name];
+        if (name in object) return;
+        if (supportsDescriptors) {
+          Object.defineProperty(object, name, {
+            configurable: true,
+            enumerable: false,
+            writable: true,
+            value: method
+          });
+        } else {
+          object[name] = method;
+        }
+      });
+    };
+
+    var ES = {
+      ToInt32: function(x) {
+        return x >> 0;
+      },
+
+      ToUint32: function(x) {
+        return x >>> 0;
+      },
+
+      toInteger: function(value) {
+        var number = +value;
+        if (Number.isNaN(number)) return 0;
+        if (number === 0 || !Number.isFinite(number)) return number;
+        return Math.sign(number) * Math.floor(Math.abs(number));
+      }
+    };
+
+    defineProperties(String, {
+      fromCodePoint: function() {
+        var points = _slice.call(arguments, 0);
+        var result = [];
+        var next;
+        for (var i = 0, length = points.length; i < length; i++) {
+          next = Number(points[i]);
+          if (!Object.is(next, ES.toInteger(next)) ||
+              next < 0 || next > 0x10FFFF) {
+            throw new RangeError('Invalid code point ' + next);
+          }
+
+          if (next < 0x10000) {
+            result.push(String.fromCharCode(next));
+          } else {
+            next -= 0x10000;
+            result.push(String.fromCharCode((next >> 10) + 0xD800));
+            result.push(String.fromCharCode((next % 0x400) + 0xDC00));
+          }
+        }
+        return result.join('');
+      },
+
+      raw: function() {
+        var callSite = arguments[0];
+        var substitutions = _slice.call(arguments, 1);
+        var cooked = Object(callSite);
+        var rawValue = cooked.raw;
+        var raw = Object(rawValue);
+        var len = Object.keys(raw).length;
+        var literalsegments = ES.ToUint32(len);
+        if (literalsegments === 0) {
+          return '';
+        }
+
+        var stringElements = [];
+        var nextIndex = 0;
+        var nextKey, next, nextSeg, nextSub;
+        while (nextIndex < literalsegments) {
+          nextKey = String(nextIndex);
+          next = raw[nextKey];
+          nextSeg = String(next);
+          stringElements.push(nextSeg);
+          if (nextIndex + 1 >= literalsegments) {
+            break;
+          }
+          next = substitutions[nextKey];
+          if (next === undefined) {
+            break;
+          }
+          nextSub = String(next);
+          stringElements.push(nextSub);
+          nextIndex++;
+        }
+        return stringElements.join('');
+      }
+    });
+
+    defineProperties(String.prototype, {
+      // Fast repeat, uses the `Exponentiation by squaring` algorithm.
+      // Perf: http://jsperf.com/string-repeat2/2
+      repeat: (function() {
+        var repeat = function(s, times) {
+          if (times < 1) return '';
+          if (times % 2) return repeat(s, times - 1) + s;
+          var half = repeat(s, times / 2);
+          return half + half;
+        };
+
+        return function(times) {
+          times = ES.toInteger(times);
+          if (times < 0 || times === Infinity) {
+            throw new RangeError();
+          }
+          return repeat(String(this), times);
+        };
+      })(),
+
+      startsWith: function(searchStr) {
+        if (this == null) throw new TypeError("Cannot call method 'startsWith' of " + this);
+        var thisStr = String(this);
+        searchStr = String(searchStr);
+        var start = Math.max(ES.toInteger(arguments[1]), 0);
+        return thisStr.slice(start, start + searchStr.length) === searchStr;
+      },
+
+      endsWith: function(searchStr) {
+        if (this == null) throw new TypeError("Cannot call method 'endsWith' of " + this);
+        var thisStr = String(this);
+        searchStr = String(searchStr);
+        var thisLen = thisStr.length;
+        var pos = (arguments[1] === undefined) ?
+          thisLen : ES.toInteger(arguments[1]);
+        var end = Math.min(pos, thisLen);
+        return thisStr.slice(end - searchStr.length, end) === searchStr;
+      },
+
+      contains: function(searchString) {
+        var position = arguments[1];
+
+        // Somehow this trick makes method 100% compat with the spec.
+        return _indexOf.call(this, searchString, position) !== -1;
+      },
+
+      codePointAt: function(pos) {
+        var s = String(this);
+        var position = ES.toInteger(pos);
+        var length = s.length;
+        if (position < 0 || position >= length) return undefined;
+        var first = s.charCodeAt(position);
+        var isEnd = (position + 1 === length);
+        if (first < 0xD800 || first > 0xDBFF || isEnd) return first;
+        var second = s.charCodeAt(position + 1);
+        if (second < 0xDC00 || second > 0xDFFF) return first;
+        return ((first - 0xD800) * 1024) + (second - 0xDC00) + 0x10000;
+      }
+    });
+
+    defineProperties(Array, {
+      from: function(iterable) {
+        var mapFn = arguments[1];
+        var thisArg = arguments[2];
+
+        if (mapFn !== undefined && _toString.call(mapFn) !== '[object Function]') {
+          throw new TypeError('when provided, the second argument must be a function');
+        }
+
+        var list = Object(iterable);
+        var length = ES.ToUint32(list.length);
+        var result = typeof this === 'function' ? Object(new this(length)) : new Array(length);
+
+        for (var i = 0; i < length; i++) {
+          var value = list[i];
+          if (mapFn !== undefined) {
+            result[i] = thisArg ? mapFn.call(thisArg, value) : mapFn(value);
+          } else {
+            result[i] = value;
+          }
+        }
+
+        result.length = length;
+        return result;
+      },
+
+      of: function() {
+        return Array.from(arguments);
+      }
+    });
+
+    defineProperties(globals, {
+      ArrayIterator: function(array, kind) {
+        this.i = 0;
+        this.array = array;
+        this.kind = kind;
+      }
+    });
+
+    defineProperties(ArrayIterator.prototype, {
+      next: function() {
+        var i = this.i;
+        this.i = i + 1;
+        var array = this.array;
+
+        if (i >= array.length) {
+          throw new Error();
+        }
+
+        if (array.hasOwnProperty(i)) {
+          var kind = this.kind;
+          var retval;
+          if (kind === "key") {
+            retval = i;
+          }
+          if (kind === "value") {
+            retval = array[i];
+          }
+          if (kind === "entry") {
+            retval = [i, array[i]];
+          }
+        } else {
+          retval = this.next();
+        }
+        return retval;
+      }
+    });
+
+    defineProperties(Array.prototype, {
+      fill: function(value) {
+        var len = this.length;
+        var start = arguments.length > 1 ? ES.toInteger(arguments[1]) : 0;
+        var end = arguments.length > 2 ? ES.toInteger(arguments[2]) : len;
+
+        var relativeStart = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+
+        for (var i = relativeStart; i < len && i < end; ++i) {
+          this[i] = value;
+        }
+        return this;
+      },
+
+      find: function(predicate) {
+        var list = Object(this);
+        var length = ES.ToUint32(list.length);
+        if (length === 0) return undefined;
+        if (typeof predicate !== 'function') {
+          throw new TypeError('Array#find: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0, value; i < length && i in list; i++) {
+          value = list[i];
+          if (predicate.call(thisArg, value, i, list)) return value;
+        }
+        return undefined;
+      },
+
+      findIndex: function(predicate) {
+        var list = Object(this);
+        var length = ES.ToUint32(list.length);
+        if (length === 0) return -1;
+        if (typeof predicate !== 'function') {
+          throw new TypeError('Array#findIndex: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0, value; i < length && i in list; i++) {
+          value = list[i];
+          if (predicate.call(thisArg, value, i, list)) return i;
+        }
+        return -1;
+      },
+
+      keys: function() {
+        return new ArrayIterator(this, "key");
+      },
+
+      values: function() {
+        return new ArrayIterator(this, "value");
+      },
+
+      entries: function() {
+        return new ArrayIterator(this, "entry");
+      }
+    });
+
+    defineProperties(Number, {
+      MAX_SAFE_INTEGER: Math.pow(2, 53) - 1,
+      EPSILON: 2.220446049250313e-16,
+
+      parseInt: globals.parseInt,
+      parseFloat: globals.parseFloat,
+
+      isFinite: function(value) {
+        return typeof value === 'number' && global_isFinite(value);
+      },
+
+      isSafeInteger: function(value) {
+        return typeof value === 'number' &&
+          !Number.isNaN(value) &&
+          Number.isFinite(value) &&
+          parseInt(value, 10) === value &&
+          Math.abs(value) <= Number.MAX_SAFE_INTEGER;
+      },
+
+      isNaN: function(value) {
+        // NaN !== NaN, but they are identical.
+        // NaNs are the only non-reflexive value, i.e., if x !== x,
+        // then x is NaN.
+        // isNaN is broken: it converts its argument to number, so
+        // isNaN('foo') => true
+        return value !== value;
+      },
+
+    });
+
+    defineProperties(Number.prototype, {
+      clz: function() {
+        var number = +this;
+        if (!number || !Number.isFinite(number)) return 32;
+        number = number < 0 ? Math.ceil(number) : Math.floor(number);
+        number = number - Math.floor(number / 0x100000000) * 0x100000000;
+        return 32 - (number).toString(2).length;
+      }
+    });
+
+    if (supportsDescriptors) {
+      defineProperties(Object, {
+        getOwnPropertyDescriptors: function(subject) {
+          var descs = {};
+          Object.getOwnPropertyNames(subject).forEach(function(propName) {
+            descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+          });
+          return descs;
+        },
+
+        getPropertyDescriptor: function(subject, name) {
+          var pd = Object.getOwnPropertyDescriptor(subject, name);
+          var proto = Object.getPrototypeOf(subject);
+          while (pd === undefined && proto !== null) {
+            pd = Object.getOwnPropertyDescriptor(proto, name);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return pd;
+        },
+
+        getPropertyNames: function(subject) {
+          var result = Object.getOwnPropertyNames(subject);
+          var proto = Object.getPrototypeOf(subject);
+
+          var addProperty = function(property) {
+            if (result.indexOf(property) === -1) {
+              result.push(property);
+            }
+          };
+
+          while (proto !== null) {
+            Object.getOwnPropertyNames(proto).forEach(addProperty);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return result;
+        },
+
+        // 15.2.3.17
+        assign: function(target, source) {
+          return Object.keys(source).reduce(function(target, key) {
+            target[key] = source[key];
+            return target;
+          }, target);
+        },
+
+        // 15.2.3.18
+        mixin: function(target, source) {
+          var props = Object.getOwnPropertyNames(source);
+          return props.reduce(function(target, property) {
+            var descriptor = Object.getOwnPropertyDescriptor(source, property);
+            return Object.defineProperty(target, property, descriptor);
+          }, target);
+        }
+      });
+
+      // 15.2.3.2
+      // shim from https://gist.github.com/WebReflection/5593554
+      defineProperties(Object, {
+        setPrototypeOf: (function(Object, magic) {
+          var set;
+
+          var checkArgs = function(O, proto) {
+            if (typeof O !== 'object' || O === null) {
+              throw new TypeError('cannot set prototype on a non-object');
+            }
+            if (typeof proto !== 'object') {
+              throw new TypeError('can only set prototype to an object or null');
+            }
+          };
+
+          var setPrototypeOf = function(O, proto) {
+            checkArgs(O, proto);
+            set.call(O, proto);
+            return O;
+          };
+
+          try {
+            // this works already in Firefox and Safari
+            set = Object.getOwnPropertyDescriptor(Object.prototype, magic).set;
+            set.call({}, null);
+          } catch (e) {
+            if (Object.prototype !== {}[magic]) {
+              // IE < 11 cannot be shimmed
+              return;
+            }
+            // probably Chrome or some old Mobile stock browser
+            set = function(proto) {
+              this[magic] = proto;
+            };
+            // please note that this will **not** work
+            // in those browsers that do not inherit
+            // __proto__ by mistake from Object.prototype
+            // in these cases we should probably throw an error
+            // or at least be informed about the issue
+            setPrototypeOf.polyfill = setPrototypeOf(
+              setPrototypeOf({}, null),
+              Object.prototype
+            ) instanceof Object;
+            // setPrototypeOf.polyfill === true means it works as meant
+            // setPrototypeOf.polyfill === false means it's not 100% reliable
+            // setPrototypeOf.polyfill === undefined
+            // or
+            // setPrototypeOf.polyfill ==  null means it's not a polyfill
+            // which means it works as expected
+            // we can even delete Object.prototype.__proto__;
+          }
+          return setPrototypeOf;
+        })(Object, '__proto__')
+      });
+    }
+
+    defineProperties(Object, {
+      getOwnPropertyKeys: function(subject) {
+        return Object.keys(subject);
+      },
+
+      is: function(a, b) {
+        if (a === b) {
+          // 0 === -0, but they are not identical.
+          if (a === 0) return 1 / a === 1 / b;
+          return true;
+        }
+        return Number.isNaN(a) && Number.isNaN(b);
+      }
+    });
+
+    defineProperties(Math, {
+      acosh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < 1) return NaN;
+        if (value === 1) return 0;
+        if (value === Infinity) return value;
+        return Math.log(value + Math.sqrt(value * value - 1));
+      },
+
+      asinh: function(value) {
+        value = Number(value);
+        if (value === 0 || !global_isFinite(value)) {
+          return value;
+        }
+        return Math.log(value + Math.sqrt(value * value + 1));
+      },
+
+      atanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < -1 || value > 1) {
+          return NaN;
+        }
+        if (value === -1) return -Infinity;
+        if (value === 1) return Infinity;
+        if (value === 0) return value;
+        return 0.5 * Math.log((1 + value) / (1 - value));
+      },
+
+      cbrt: function(value) {
+        value = Number(value);
+        if (value === 0) return value;
+        var negate = value < 0, result;
+        if (negate) value = -value;
+        result = Math.pow(value, 1/3);
+        return negate ? -result : result;
+      },
+
+      cosh: function(value) {
+        value = Number(value);
+        if (value === 0) return 1; // +0 or -0
+        if (!global_isFinite(value)) return value;
+        if (value < 0) value = -value;
+        if (value > 21) return Math.exp(value) / 2;
+        return (Math.exp(value) + Math.exp(-value)) / 2;
+      },
+
+      expm1: function(value) {
+        value = Number(value);
+        if (value === -Infinity) return -1;
+        if (!global_isFinite(value) || value === 0) return value;
+        var result = 0;
+        var n = 50;
+        for (var i = 1; i < n; i++) {
+          for (var j = 2, factorial = 1; j <= i; j++) {
+            factorial *= j;
+          }
+          result += Math.pow(value, i) / factorial;
+        }
+        return result;
+      },
+
+      hypot: function(x, y) {
+        var anyNaN = false;
+        var allZero = true;
+        var z = arguments.length > 2 ? arguments[2] : 0;
+        if ([x, y, z].some(function(num) {
+          if (Number.isNaN(num)) anyNaN = true;
+          else if (num === Infinity || num === -Infinity) return true;
+          else if (num !== 0) allZero = false;
+        })) return Infinity;
+        if (anyNaN) return NaN;
+        if (allZero) return 0;
+        if (x == null) x = 0;
+        if (y == null) y = 0;
+        if (z == null) z = 0;
+        return Math.sqrt(x * x + y * y + z * z);
+      },
+
+      log2: function(value) {
+        return Math.log(value) * Math.LOG2E;
+      },
+
+      log10: function(value) {
+        return Math.log(value) * Math.LOG10E;
+      },
+
+      log1p: function(value) {
+        value = Number(value);
+        if (value < -1 || Number.isNaN(value)) return NaN;
+        if (value === 0 || value === Infinity) return value;
+        if (value === -1) return -Infinity;
+        var result = 0;
+        var n = 50;
+
+        if (value < 0 || value > 1) return Math.log(1 + value);
+        for (var i = 1; i < n; i++) {
+          if ((i % 2) === 0) {
+            result -= Math.pow(value, i) / i;
+          } else {
+            result += Math.pow(value, i) / i;
+          }
+        }
+
+        return result;
+      },
+
+      sign: function(value) {
+        var number = +value;
+        if (number === 0) return number;
+        if (Number.isNaN(number)) return number;
+        return number < 0 ? -1 : 1;
+      },
+
+      sinh: function(value) {
+        value = Number(value);
+        if (!global_isFinite(value) || value === 0) return value;
+        return (Math.exp(value) - Math.exp(-value)) / 2;
+      },
+
+      tanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value === 0) return value;
+        if (value === Infinity) return 1;
+        if (value === -Infinity) return -1;
+        return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+      },
+
+      trunc: function(value) {
+        var number = Number(value);
+        return number < 0 ? -Math.floor(-number) : Math.floor(number);
+      },
+
+      imul: function(x, y) {
+        // taken from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
+        var ah  = (x >>> 16) & 0xffff;
+        var al = x & 0xffff;
+        var bh  = (y >>> 16) & 0xffff;
+        var bl = y & 0xffff;
+        // the shift by 0 fixes the sign on the high part
+        // the final |0 converts the unsigned value into a signed value
+        return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);
+      }
+    });
+
+    if (supportsDescriptors) {
+      // Map and Set require a true ES5 environment
+      var collectionShims = {
+        Map: (function() {
+
+          var empty = {};
+
+          function MapEntry(key, value) {
+            this.key = key;
+            this.value = value;
+            this.next = null;
+          }
+
+          MapEntry.prototype.isRemoved = function() {
+            return this.key === empty;
+          };
+
+          function MapIterator(map, kind) {
+            this.i = map._head;
+            this.kind = kind;
+          }
+
+          MapIterator.prototype = {
+            next: function() {
+              var i = this.i;
+              if (i !== null) {
+                while (i.isRemoved()) {
+                  i = i.next;
+                }
+                i = i.next;
+                this.i = i;
+              }
+              if (i === null) {
+                throw new Error();
+              }
+              var kind = this.kind;
+              if (kind === "key") {
+                return i.key;
+              }
+              if (kind === "value") {
+                return i.value;
+              }
+              return [i.key, i.value];
+            }
+          };
+
+          function Map() {
+            if (!(this instanceof Map)) throw new TypeError('Map must be called with "new"');
+
+            var head = new MapEntry(null, null);
+
+            defineProperties(this, {
+              '_head': head,
+              '_size': 0
+            });
+
+            Object.defineProperty(this, 'size', {
+              configurable: true,
+              enumerable: false,
+              get: (function() {
+                return this._size;
+              }).bind(this)
+            });
+          }
+
+          defineProperties(Map.prototype, {
+            get: function(key) {
+              var i = this._head;
+              while ((i = i.next) !== null) {
+                if (Object.is(i.key, key)) {
+                  return i.value;
+                }
+              }
+              return undefined;
+            },
+
+            has: function(key) {
+              var i = this._head;
+              while ((i = i.next) !== null) {
+                if (Object.is(i.key, key)) {
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            set: function(key, value) {
+              var i = this._head;
+              var p = i;
+              while ((i = i.next) !== null) {
+                if (Object.is(i.key, key)) {
+                  i.value = value;
+                  return;
+                }
+                p = i;
+              }
+              var entry = new MapEntry(key, value);
+              p.next = entry;
+              this._size += 1;
+            },
+
+            'delete': function(key) {
+              var i = this._head;
+              var p = i;
+              while ((i = i.next) !== null) {
+                if (Object.is(i.key, key)) {
+                  p.next = i.next;
+                  i.key = empty;
+                  i.value = empty;
+                  i.next = p;
+                  this._size -= 1;
+                  return true;
+                }
+                p = i;
+              }
+              return false;
+            },
+
+            clear: function() {
+              var p = this._head;
+              var i = p.next;
+              this._size = 0;
+              p.next = null;
+              while (i !== null) {
+                var x = i.next;
+                i.key = empty;
+                i.value = empty;
+                i.next = p;
+                i = x;
+              }
+            },
+
+            keys: function() {
+              return new MapIterator(this, "key");
+            },
+
+            values: function() {
+              return new MapIterator(this, "value");
+            },
+
+            entries: function() {
+              return new MapIterator(this, "key+value");
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var entireMap = this;
+
+              var i = this._head;
+              while ((i = i.next) !== null) {
+                callback.call(context, i.value, i.key, entireMap);
+                while (i.isRemoved()) {
+                  i = i.next;
+                }
+              }
+            }
+          });
+
+          return Map;
+        })(),
+
+        Set: (function() {
+          var SetShim = function Set() {
+            if (!(this instanceof SetShim)) throw new TypeError('Set must be called with "new"');
+            defineProperties(this, {'[[SetData]]': new Map()});
+            Object.defineProperty(this, 'size', {
+              configurable: true,
+              enumerable: false,
+              get: (function() {
+                return this['[[SetData]]'].size;
+              }).bind(this)
+            });
+          };
+
+          defineProperties(SetShim.prototype, {
+            has: function(key) {
+              return this['[[SetData]]'].has(key);
+            },
+
+            add: function(key) {
+              return this['[[SetData]]'].set(key, key);
+            },
+
+            'delete': function(key) {
+              return this['[[SetData]]']['delete'](key);
+            },
+
+            clear: function() {
+              return this['[[SetData]]'].clear();
+            },
+
+            keys: function() {
+              return this['[[SetData]]'].keys();
+            },
+
+            values: function() {
+              return this['[[SetData]]'].values();
+            },
+
+            entries: function() {
+              return this['[[SetData]]'].entries();
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var entireSet = this;
+              this['[[SetData]]'].forEach(function(value, key) {
+                callback.call(context, key, key, entireSet);
+              });
+            }
+          });
+
+          return SetShim;
+        })()
+      };
+      defineProperties(globals, collectionShims);
+
+      if (globals.Map || globals.Set) {
+        /*
+          - In Firefox < 23, Map#size is a function.
+          - In all current Firefox, Set#entries/keys/values & Map#clear do not exist
+          - https://bugzilla.mozilla.org/show_bug.cgi?id=869996
+        */
+        if (
+          typeof globals.Map.prototype.clear !== 'function' ||
+          new globals.Set().size !== 0 ||
+          new globals.Map().size !== 0 ||
+          typeof globals.Set.prototype.keys !== 'function'
+        ) {
+          globals.Map = collectionShims.Map;
+          globals.Set = collectionShims.Set;
+        }
+      }
+    }
+  };
+
+  if (typeof define === 'function' && typeof define.amd === 'object' && define.amd) {
+    define(main); // RequireJS
+  } else {
+    main(); // CommonJS and <script>
+  }
+})();
+
diff --git a/ajax/libs/es6-shim/0.9.0/es6-shim.min.js b/ajax/libs/es6-shim/0.9.0/es6-shim.min.js
new file mode 100644
index 000000000..3b9d05f2b
--- /dev/null
+++ b/ajax/libs/es6-shim/0.9.0/es6-shim.min.js
@@ -0,0 +1 @@
+!function(t){"use strict";var e=function(){try{return Object.defineProperty({},"x",{}),!0}catch(t){return!1}},r=function(){var r="undefined"==typeof global?window:global,n=r.isFinite,i=!!Object.defineProperty&&e(),o=Array.prototype.slice,u=String.prototype.indexOf,a=Object.prototype.toString,f=function(t,e){Object.keys(e).forEach(function(r){var n=e[r];r in t||(i?Object.defineProperty(t,r,{configurable:!0,enumerable:!1,writable:!0,value:n}):t[r]=n)})},s={ToInt32:function(t){return t>>0},ToUint32:function(t){return t>>>0},toInteger:function(t){var e=+t;return Number.isNaN(e)?0:0!==e&&Number.isFinite(e)?Math.sign(e)*Math.floor(Math.abs(e)):e}};if(f(String,{fromCodePoint:function(){for(var t,e=o.call(arguments,0),r=[],n=0,i=e.length;i>n;n++){if(t=Number(e[n]),!Object.is(t,s.toInteger(t))||0>t||t>1114111)throw new RangeError("Invalid code point "+t);65536>t?r.push(String.fromCharCode(t)):(t-=65536,r.push(String.fromCharCode((t>>10)+55296)),r.push(String.fromCharCode(t%1024+56320)))}return r.join("")},raw:function(){var e=arguments[0],r=o.call(arguments,1),n=Object(e),i=n.raw,u=Object(i),a=Object.keys(u).length,f=s.ToUint32(a);if(0===f)return"";for(var c,h,l,p,y=[],g=0;f>g&&(c=String(g),h=u[c],l=String(h),y.push(l),!(g+1>=f))&&(h=r[c],h!==t);)p=String(h),y.push(p),g++;return y.join("")}}),f(String.prototype,{repeat:function(){var t=function(e,r){if(1>r)return"";if(r%2)return t(e,r-1)+e;var n=t(e,r/2);return n+n};return function(e){if(e=s.toInteger(e),0>e||1/0===e)throw new RangeError;return t(String(this),e)}}(),startsWith:function(t){if(null==this)throw new TypeError("Cannot call method 'startsWith' of "+this);var e=String(this);t=String(t);var r=Math.max(s.toInteger(arguments[1]),0);return e.slice(r,r+t.length)===t},endsWith:function(e){if(null==this)throw new TypeError("Cannot call method 'endsWith' of "+this);var r=String(this);e=String(e);var n=r.length,i=arguments[1]===t?n:s.toInteger(arguments[1]),o=Math.min(i,n);return r.slice(o-e.length,o)===e},contains:function(t){var e=arguments[1];return-1!==u.call(this,t,e)},codePointAt:function(e){var r=String(this),n=s.toInteger(e),i=r.length;if(0>n||n>=i)return t;var o=r.charCodeAt(n),u=n+1===i;if(55296>o||o>56319||u)return o;var a=r.charCodeAt(n+1);return 56320>a||a>57343?o:1024*(o-55296)+(a-56320)+65536}}),f(Array,{from:function(e){var r=arguments[1],n=arguments[2];if(r!==t&&"[object Function]"!==a.call(r))throw new TypeError("when provided, the second argument must be a function");for(var i=Object(e),o=s.ToUint32(i.length),u="function"==typeof this?Object(new this(o)):new Array(o),f=0;o>f;f++){var c=i[f];u[f]=r!==t?n?r.call(n,c):r(c):c}return u.length=o,u},of:function(){return Array.from(arguments)}}),f(r,{ArrayIterator:function(t,e){this.i=0,this.array=t,this.kind=e}}),f(ArrayIterator.prototype,{next:function(){var t=this.i;this.i=t+1;var e=this.array;if(t>=e.length)throw new Error;if(e.hasOwnProperty(t)){var r,n=this.kind;"key"===n&&(r=t),"value"===n&&(r=e[t]),"entry"===n&&(r=[t,e[t]])}else r=this.next();return r}}),f(Array.prototype,{fill:function(t){for(var e=this.length,r=arguments.length>1?s.toInteger(arguments[1]):0,n=arguments.length>2?s.toInteger(arguments[2]):e,i=0>r?Math.max(e+r,0):Math.min(r,e),o=i;e>o&&n>o;++o)this[o]=t;return this},find:function(e){var r=Object(this),n=s.ToUint32(r.length);if(0===n)return t;if("function"!=typeof e)throw new TypeError("Array#find: predicate must be a function");for(var i,o=arguments[1],u=0;n>u&&u in r;u++)if(i=r[u],e.call(o,i,u,r))return i;return t},findIndex:function(t){var e=Object(this),r=s.ToUint32(e.length);if(0===r)return-1;if("function"!=typeof t)throw new TypeError("Array#findIndex: predicate must be a function");for(var n,i=arguments[1],o=0;r>o&&o in e;o++)if(n=e[o],t.call(i,n,o,e))return o;return-1},keys:function(){return new ArrayIterator(this,"key")},values:function(){return new ArrayIterator(this,"value")},entries:function(){return new ArrayIterator(this,"entry")}}),f(Number,{MAX_SAFE_INTEGER:Math.pow(2,53)-1,EPSILON:2.220446049250313e-16,parseInt:r.parseInt,parseFloat:r.parseFloat,isFinite:function(t){return"number"==typeof t&&n(t)},isSafeInteger:function(t){return"number"==typeof t&&!Number.isNaN(t)&&Number.isFinite(t)&&parseInt(t,10)===t&&Math.abs(t)<=Number.MAX_SAFE_INTEGER},isNaN:function(t){return t!==t}}),f(Number.prototype,{clz:function(){var t=+this;return t&&Number.isFinite(t)?(t=0>t?Math.ceil(t):Math.floor(t),t-=4294967296*Math.floor(t/4294967296),32-t.toString(2).length):32}}),i&&(f(Object,{getOwnPropertyDescriptors:function(t){var e={};return Object.getOwnPropertyNames(t).forEach(function(r){e[r]=Object.getOwnPropertyDescriptor(t,r)}),e},getPropertyDescriptor:function(e,r){for(var n=Object.getOwnPropertyDescriptor(e,r),i=Object.getPrototypeOf(e);n===t&&null!==i;)n=Object.getOwnPropertyDescriptor(i,r),i=Object.getPrototypeOf(i);return n},getPropertyNames:function(t){for(var e=Object.getOwnPropertyNames(t),r=Object.getPrototypeOf(t),n=function(t){-1===e.indexOf(t)&&e.push(t)};null!==r;)Object.getOwnPropertyNames(r).forEach(n),r=Object.getPrototypeOf(r);return e},assign:function(t,e){return Object.keys(e).reduce(function(t,r){return t[r]=e[r],t},t)},mixin:function(t,e){var r=Object.getOwnPropertyNames(e);return r.reduce(function(t,r){var n=Object.getOwnPropertyDescriptor(e,r);return Object.defineProperty(t,r,n)},t)}}),f(Object,{setPrototypeOf:function(t,e){var r,n=function(t,e){if("object"!=typeof t||null===t)throw new TypeError("cannot set prototype on a non-object");if("object"!=typeof e)throw new TypeError("can only set prototype to an object or null")},i=function(t,e){return n(t,e),r.call(t,e),t};try{r=t.getOwnPropertyDescriptor(t.prototype,e).set,r.call({},null)}catch(o){if(t.prototype!=={}[e])return;r=function(t){this[e]=t},i.polyfill=i(i({},null),t.prototype)instanceof t}return i}(Object,"__proto__")})),f(Object,{getOwnPropertyKeys:function(t){return Object.keys(t)},is:function(t,e){return t===e?0===t?1/t===1/e:!0:Number.isNaN(t)&&Number.isNaN(e)}}),f(Math,{acosh:function(t){return t=Number(t),Number.isNaN(t)||1>t?0/0:1===t?0:1/0===t?t:Math.log(t+Math.sqrt(t*t-1))},asinh:function(t){return t=Number(t),0!==t&&n(t)?Math.log(t+Math.sqrt(t*t+1)):t},atanh:function(t){return t=Number(t),Number.isNaN(t)||-1>t||t>1?0/0:-1===t?-1/0:1===t?1/0:0===t?t:.5*Math.log((1+t)/(1-t))},cbrt:function(t){if(t=Number(t),0===t)return t;var e,r=0>t;return r&&(t=-t),e=Math.pow(t,1/3),r?-e:e},cosh:function(t){return t=Number(t),0===t?1:n(t)?(0>t&&(t=-t),t>21?Math.exp(t)/2:(Math.exp(t)+Math.exp(-t))/2):t},expm1:function(t){if(t=Number(t),t===-1/0)return-1;if(!n(t)||0===t)return t;for(var e=0,r=50,i=1;r>i;i++){for(var o=2,u=1;i>=o;o++)u*=o;e+=Math.pow(t,i)/u}return e},hypot:function(t,e){var r=!1,n=!0,i=arguments.length>2?arguments[2]:0;return[t,e,i].some(function(t){if(Number.isNaN(t))r=!0;else{if(1/0===t||t===-1/0)return!0;0!==t&&(n=!1)}})?1/0:r?0/0:n?0:(null==t&&(t=0),null==e&&(e=0),null==i&&(i=0),Math.sqrt(t*t+e*e+i*i))},log2:function(t){return Math.log(t)*Math.LOG2E},log10:function(t){return Math.log(t)*Math.LOG10E},log1p:function(t){if(t=Number(t),-1>t||Number.isNaN(t))return 0/0;if(0===t||1/0===t)return t;if(-1===t)return-1/0;var e=0,r=50;if(0>t||t>1)return Math.log(1+t);for(var n=1;r>n;n++)n%2===0?e-=Math.pow(t,n)/n:e+=Math.pow(t,n)/n;return e},sign:function(t){var e=+t;return 0===e?e:Number.isNaN(e)?e:0>e?-1:1},sinh:function(t){return t=Number(t),n(t)&&0!==t?(Math.exp(t)-Math.exp(-t))/2:t},tanh:function(t){return t=Number(t),Number.isNaN(t)||0===t?t:1/0===t?1:t===-1/0?-1:(Math.exp(t)-Math.exp(-t))/(Math.exp(t)+Math.exp(-t))},trunc:function(t){var e=Number(t);return 0>e?-Math.floor(-e):Math.floor(e)},imul:function(t,e){var r=t>>>16&65535,n=65535&t,i=e>>>16&65535,o=65535&e;return n*o+(r*o+n*i<<16>>>0)|0}}),i){var c={Map:function(){function e(t,e){this.key=t,this.value=e,this.next=null}function r(t,e){this.i=t._head,this.kind=e}function n(){if(!(this instanceof n))throw new TypeError('Map must be called with "new"');var t=new e(null,null);f(this,{_head:t,_size:0}),Object.defineProperty(this,"size",{configurable:!0,enumerable:!1,get:function(){return this._size}.bind(this)})}var i={};return e.prototype.isRemoved=function(){return this.key===i},r.prototype={next:function(){var t=this.i;if(null!==t){for(;t.isRemoved();)t=t.next;t=t.next,this.i=t}if(null===t)throw new Error;var e=this.kind;return"key"===e?t.key:"value"===e?t.value:[t.key,t.value]}},f(n.prototype,{get:function(e){for(var r=this._head;null!==(r=r.next);)if(Object.is(r.key,e))return r.value;return t},has:function(t){for(var e=this._head;null!==(e=e.next);)if(Object.is(e.key,t))return!0;return!1},set:function(t,r){for(var n=this._head,i=n;null!==(n=n.next);){if(Object.is(n.key,t))return void(n.value=r);i=n}var o=new e(t,r);i.next=o,this._size+=1},"delete":function(t){for(var e=this._head,r=e;null!==(e=e.next);){if(Object.is(e.key,t))return r.next=e.next,e.key=i,e.value=i,e.next=r,this._size-=1,!0;r=e}return!1},clear:function(){var t=this._head,e=t.next;for(this._size=0,t.next=null;null!==e;){var r=e.next;e.key=i,e.value=i,e.next=t,e=r}},keys:function(){return new r(this,"key")},values:function(){return new r(this,"value")},entries:function(){return new r(this,"key+value")},forEach:function(t){for(var e=arguments.length>1?arguments[1]:null,r=this,n=this._head;null!==(n=n.next);)for(t.call(e,n.value,n.key,r);n.isRemoved();)n=n.next}}),n}(),Set:function(){var t=function(){if(!(this instanceof t))throw new TypeError('Set must be called with "new"');f(this,{"[[SetData]]":new Map}),Object.defineProperty(this,"size",{configurable:!0,enumerable:!1,get:function(){return this["[[SetData]]"].size}.bind(this)})};return f(t.prototype,{has:function(t){return this["[[SetData]]"].has(t)},add:function(t){return this["[[SetData]]"].set(t,t)},"delete":function(t){return this["[[SetData]]"]["delete"](t)},clear:function(){return this["[[SetData]]"].clear()},keys:function(){return this["[[SetData]]"].keys()},values:function(){return this["[[SetData]]"].values()},entries:function(){return this["[[SetData]]"].entries()},forEach:function(t){var e=arguments.length>1?arguments[1]:null,r=this;this["[[SetData]]"].forEach(function(n,i){t.call(e,i,i,r)})}}),t}()};f(r,c),(r.Map||r.Set)&&("function"!=typeof r.Map.prototype.clear||0!==(new r.Set).size||0!==(new r.Map).size||"function"!=typeof r.Set.prototype.keys)&&(r.Map=c.Map,r.Set=c.Set)}};"function"==typeof define&&"object"==typeof define.amd&&define.amd?define(r):r()}();
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.9.1/es6-shim.js b/ajax/libs/es6-shim/0.9.1/es6-shim.js
new file mode 100644
index 000000000..3c4468d4a
--- /dev/null
+++ b/ajax/libs/es6-shim/0.9.1/es6-shim.js
@@ -0,0 +1,996 @@
+// ES6-shim 0.9.1 (c) 2013 Paul Miller (http://paulmillr.com)
+// ES6-shim may be freely distributed under the MIT license.
+// For more details and documentation:
+// https://github.com/paulmillr/es6-shim/
+
+(function(undefined) {
+  'use strict';
+
+  var arePropertyDescriptorsSupported = function() {
+    try {
+      Object.defineProperty({}, 'x', {});
+      return true;
+    } catch (e) { /* this is IE 8. */
+      return false;
+    }
+  };
+
+  var main = function() {
+    var globals = (typeof global === 'undefined') ? window : global;
+    var global_isFinite = globals.isFinite;
+    var supportsDescriptors = !!Object.defineProperty && arePropertyDescriptorsSupported();
+    var _slice = Array.prototype.slice;
+    var _indexOf = String.prototype.indexOf;
+    var _toString = Object.prototype.toString;
+    var _hasOwnProperty = Object.prototype.hasOwnProperty;
+
+    // Define configurable, writable and non-enumerable props
+    // if they don’t exist.
+    var defineProperties = function(object, map) {
+      Object.keys(map).forEach(function(name) {
+        var method = map[name];
+        if (name in object) return;
+        if (supportsDescriptors) {
+          Object.defineProperty(object, name, {
+            configurable: true,
+            enumerable: false,
+            writable: true,
+            value: method
+          });
+        } else {
+          object[name] = method;
+        }
+      });
+    };
+
+    var ES = {
+      ToInt32: function(x) {
+        return x >> 0;
+      },
+
+      ToUint32: function(x) {
+        return x >>> 0;
+      },
+
+      toInteger: function(value) {
+        var number = +value;
+        if (Number.isNaN(number)) return 0;
+        if (number === 0 || !Number.isFinite(number)) return number;
+        return Math.sign(number) * Math.floor(Math.abs(number));
+      }
+    };
+
+    defineProperties(String, {
+      fromCodePoint: function() {
+        var points = _slice.call(arguments, 0);
+        var result = [];
+        var next;
+        for (var i = 0, length = points.length; i < length; i++) {
+          next = Number(points[i]);
+          if (!Object.is(next, ES.toInteger(next)) ||
+              next < 0 || next > 0x10FFFF) {
+            throw new RangeError('Invalid code point ' + next);
+          }
+
+          if (next < 0x10000) {
+            result.push(String.fromCharCode(next));
+          } else {
+            next -= 0x10000;
+            result.push(String.fromCharCode((next >> 10) + 0xD800));
+            result.push(String.fromCharCode((next % 0x400) + 0xDC00));
+          }
+        }
+        return result.join('');
+      },
+
+      raw: function() {
+        var callSite = arguments[0];
+        var substitutions = _slice.call(arguments, 1);
+        var cooked = Object(callSite);
+        var rawValue = cooked.raw;
+        var raw = Object(rawValue);
+        var len = Object.keys(raw).length;
+        var literalsegments = ES.ToUint32(len);
+        if (literalsegments === 0) {
+          return '';
+        }
+
+        var stringElements = [];
+        var nextIndex = 0;
+        var nextKey, next, nextSeg, nextSub;
+        while (nextIndex < literalsegments) {
+          nextKey = String(nextIndex);
+          next = raw[nextKey];
+          nextSeg = String(next);
+          stringElements.push(nextSeg);
+          if (nextIndex + 1 >= literalsegments) {
+            break;
+          }
+          next = substitutions[nextKey];
+          if (next === undefined) {
+            break;
+          }
+          nextSub = String(next);
+          stringElements.push(nextSub);
+          nextIndex++;
+        }
+        return stringElements.join('');
+      }
+    });
+
+    defineProperties(String.prototype, {
+      // Fast repeat, uses the `Exponentiation by squaring` algorithm.
+      // Perf: http://jsperf.com/string-repeat2/2
+      repeat: (function() {
+        var repeat = function(s, times) {
+          if (times < 1) return '';
+          if (times % 2) return repeat(s, times - 1) + s;
+          var half = repeat(s, times / 2);
+          return half + half;
+        };
+
+        return function(times) {
+          times = ES.toInteger(times);
+          if (times < 0 || times === Infinity) {
+            throw new RangeError();
+          }
+          return repeat(String(this), times);
+        };
+      })(),
+
+      startsWith: function(searchStr) {
+        if (this == null) throw new TypeError("Cannot call method 'startsWith' of " + this);
+        var thisStr = String(this);
+        searchStr = String(searchStr);
+        var start = Math.max(ES.toInteger(arguments[1]), 0);
+        return thisStr.slice(start, start + searchStr.length) === searchStr;
+      },
+
+      endsWith: function(searchStr) {
+        if (this == null) throw new TypeError("Cannot call method 'endsWith' of " + this);
+        var thisStr = String(this);
+        searchStr = String(searchStr);
+        var thisLen = thisStr.length;
+        var pos = (arguments[1] === undefined) ?
+          thisLen : ES.toInteger(arguments[1]);
+        var end = Math.min(pos, thisLen);
+        return thisStr.slice(end - searchStr.length, end) === searchStr;
+      },
+
+      contains: function(searchString) {
+        var position = arguments[1];
+
+        // Somehow this trick makes method 100% compat with the spec.
+        return _indexOf.call(this, searchString, position) !== -1;
+      },
+
+      codePointAt: function(pos) {
+        var s = String(this);
+        var position = ES.toInteger(pos);
+        var length = s.length;
+        if (position < 0 || position >= length) return undefined;
+        var first = s.charCodeAt(position);
+        var isEnd = (position + 1 === length);
+        if (first < 0xD800 || first > 0xDBFF || isEnd) return first;
+        var second = s.charCodeAt(position + 1);
+        if (second < 0xDC00 || second > 0xDFFF) return first;
+        return ((first - 0xD800) * 1024) + (second - 0xDC00) + 0x10000;
+      }
+    });
+
+    defineProperties(Array, {
+      from: function(iterable) {
+        var mapFn = arguments[1];
+        var thisArg = arguments[2];
+
+        if (mapFn !== undefined && _toString.call(mapFn) !== '[object Function]') {
+          throw new TypeError('when provided, the second argument must be a function');
+        }
+
+        var list = Object(iterable);
+        var length = ES.ToUint32(list.length);
+        var result = typeof this === 'function' ? Object(new this(length)) : new Array(length);
+
+        for (var i = 0; i < length; i++) {
+          var value = list[i];
+          if (mapFn !== undefined) {
+            result[i] = thisArg ? mapFn.call(thisArg, value) : mapFn(value);
+          } else {
+            result[i] = value;
+          }
+        }
+
+        result.length = length;
+        return result;
+      },
+
+      of: function() {
+        return Array.from(arguments);
+      }
+    });
+
+    defineProperties(globals, {
+      ArrayIterator: function(array, kind) {
+        this.i = 0;
+        this.array = array;
+        this.kind = kind;
+      }
+    });
+
+    defineProperties(ArrayIterator.prototype, {
+      next: function() {
+        var i = this.i;
+        this.i = i + 1;
+        var array = this.array;
+
+        if (i >= array.length) {
+          throw new Error();
+        }
+
+        if (array.hasOwnProperty(i)) {
+          var kind = this.kind;
+          var retval;
+          if (kind === "key") {
+            retval = i;
+          }
+          if (kind === "value") {
+            retval = array[i];
+          }
+          if (kind === "entry") {
+            retval = [i, array[i]];
+          }
+        } else {
+          retval = this.next();
+        }
+        return retval;
+      }
+    });
+
+    defineProperties(Array.prototype, {
+      copyWithin: function(target, start) {
+        var o = Object(this);
+        var len = Math.max(ES.toInteger(o.length), 0);
+        var to = target < 0 ? Math.max(len + target, 0) : Math.min(target, len);
+        var from = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+        var end = arguments.length > 2 ? arguments[2] : len;
+        var final = end < 0 ? Math.max(len + end, 0) : Math.min(end, len);
+        var count = Math.min(final - from, len - to);
+        var direction = 1;
+        if (from < to && to < (from + count)) {
+          direction = -1;
+          from += count - 1;
+          to += count - 1;
+        }
+        while (count > 0) {
+          if (_hasOwnProperty.call(o, from)) {
+            o[to] = o[from];
+          } else {
+            delete o[from];
+          }
+          from += direction;
+          to += direction;
+          count -= 1;
+        }
+        return o;
+      },
+      fill: function(value) {
+        var len = this.length;
+        var start = arguments.length > 1 ? ES.toInteger(arguments[1]) : 0;
+        var end = arguments.length > 2 ? ES.toInteger(arguments[2]) : len;
+
+        var relativeStart = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+
+        for (var i = relativeStart; i < len && i < end; ++i) {
+          this[i] = value;
+        }
+        return this;
+      },
+
+      find: function(predicate) {
+        var list = Object(this);
+        var length = ES.ToUint32(list.length);
+        if (length === 0) return undefined;
+        if (typeof predicate !== 'function') {
+          throw new TypeError('Array#find: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0, value; i < length && i in list; i++) {
+          value = list[i];
+          if (predicate.call(thisArg, value, i, list)) return value;
+        }
+        return undefined;
+      },
+
+      findIndex: function(predicate) {
+        var list = Object(this);
+        var length = ES.ToUint32(list.length);
+        if (length === 0) return -1;
+        if (typeof predicate !== 'function') {
+          throw new TypeError('Array#findIndex: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0, value; i < length && i in list; i++) {
+          value = list[i];
+          if (predicate.call(thisArg, value, i, list)) return i;
+        }
+        return -1;
+      },
+
+      keys: function() {
+        return new ArrayIterator(this, "key");
+      },
+
+      values: function() {
+        return new ArrayIterator(this, "value");
+      },
+
+      entries: function() {
+        return new ArrayIterator(this, "entry");
+      }
+    });
+
+    var maxSafeInteger = Math.pow(2, 53) - 1;
+    defineProperties(Number, {
+      MAX_SAFE_INTEGER: maxSafeInteger,
+      MIN_SAFE_INTEGER: -maxSafeInteger,
+      EPSILON: 2.220446049250313e-16,
+
+      parseInt: globals.parseInt,
+      parseFloat: globals.parseFloat,
+
+      isFinite: function(value) {
+        return typeof value === 'number' && global_isFinite(value);
+      },
+
+      isSafeInteger: function(value) {
+        return typeof value === 'number' &&
+          !Number.isNaN(value) &&
+          Number.isFinite(value) &&
+          parseInt(value, 10) === value &&
+          Math.abs(value) <= Number.MAX_SAFE_INTEGER;
+      },
+
+      isNaN: function(value) {
+        // NaN !== NaN, but they are identical.
+        // NaNs are the only non-reflexive value, i.e., if x !== x,
+        // then x is NaN.
+        // isNaN is broken: it converts its argument to number, so
+        // isNaN('foo') => true
+        return value !== value;
+      },
+
+    });
+
+    defineProperties(Number.prototype, {
+      clz: function() {
+        var number = +this;
+        if (!number || !Number.isFinite(number)) return 32;
+        number = number < 0 ? Math.ceil(number) : Math.floor(number);
+        number = number - Math.floor(number / 0x100000000) * 0x100000000;
+        return 32 - (number).toString(2).length;
+      }
+    });
+
+    if (supportsDescriptors) {
+      defineProperties(Object, {
+        getOwnPropertyDescriptors: function(subject) {
+          var descs = {};
+          Object.getOwnPropertyNames(subject).forEach(function(propName) {
+            descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+          });
+          return descs;
+        },
+
+        getPropertyDescriptor: function(subject, name) {
+          var pd = Object.getOwnPropertyDescriptor(subject, name);
+          var proto = Object.getPrototypeOf(subject);
+          while (pd === undefined && proto !== null) {
+            pd = Object.getOwnPropertyDescriptor(proto, name);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return pd;
+        },
+
+        getPropertyNames: function(subject) {
+          var result = Object.getOwnPropertyNames(subject);
+          var proto = Object.getPrototypeOf(subject);
+
+          var addProperty = function(property) {
+            if (result.indexOf(property) === -1) {
+              result.push(property);
+            }
+          };
+
+          while (proto !== null) {
+            Object.getOwnPropertyNames(proto).forEach(addProperty);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return result;
+        },
+
+        // 19.1.3.1
+        assign: function(target, source) {
+          return Object.keys(source).reduce(function(target, key) {
+            target[key] = source[key];
+            return target;
+          }, target);
+        },
+
+        // 19.1.3.15
+        mixin: function(target, source) {
+          var props = Object.getOwnPropertyNames(source);
+          return props.reduce(function(target, property) {
+            var descriptor = Object.getOwnPropertyDescriptor(source, property);
+            return Object.defineProperty(target, property, descriptor);
+          }, target);
+        }
+      });
+
+      // 19.1.3.9
+      // shim from https://gist.github.com/WebReflection/5593554
+      defineProperties(Object, {
+        setPrototypeOf: (function(Object, magic) {
+          var set;
+
+          var checkArgs = function(O, proto) {
+            if (typeof O !== 'object' || O === null) {
+              throw new TypeError('cannot set prototype on a non-object');
+            }
+            if (typeof proto !== 'object') {
+              throw new TypeError('can only set prototype to an object or null');
+            }
+          };
+
+          var setPrototypeOf = function(O, proto) {
+            checkArgs(O, proto);
+            set.call(O, proto);
+            return O;
+          };
+
+          try {
+            // this works already in Firefox and Safari
+            set = Object.getOwnPropertyDescriptor(Object.prototype, magic).set;
+            set.call({}, null);
+          } catch (e) {
+            if (Object.prototype !== {}[magic]) {
+              // IE < 11 cannot be shimmed
+              return;
+            }
+            // probably Chrome or some old Mobile stock browser
+            set = function(proto) {
+              this[magic] = proto;
+            };
+            // please note that this will **not** work
+            // in those browsers that do not inherit
+            // __proto__ by mistake from Object.prototype
+            // in these cases we should probably throw an error
+            // or at least be informed about the issue
+            setPrototypeOf.polyfill = setPrototypeOf(
+              setPrototypeOf({}, null),
+              Object.prototype
+            ) instanceof Object;
+            // setPrototypeOf.polyfill === true means it works as meant
+            // setPrototypeOf.polyfill === false means it's not 100% reliable
+            // setPrototypeOf.polyfill === undefined
+            // or
+            // setPrototypeOf.polyfill ==  null means it's not a polyfill
+            // which means it works as expected
+            // we can even delete Object.prototype.__proto__;
+          }
+          return setPrototypeOf;
+        })(Object, '__proto__')
+      });
+    }
+
+    defineProperties(Object, {
+      getOwnPropertyKeys: function(subject) {
+        return Object.keys(subject);
+      },
+
+      is: function(a, b) {
+        if (a === b) {
+          // 0 === -0, but they are not identical.
+          if (a === 0) return 1 / a === 1 / b;
+          return true;
+        }
+        return Number.isNaN(a) && Number.isNaN(b);
+      }
+    });
+
+    defineProperties(Math, {
+      acosh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < 1) return NaN;
+        if (value === 1) return 0;
+        if (value === Infinity) return value;
+        return Math.log(value + Math.sqrt(value * value - 1));
+      },
+
+      asinh: function(value) {
+        value = Number(value);
+        if (value === 0 || !global_isFinite(value)) {
+          return value;
+        }
+        return Math.log(value + Math.sqrt(value * value + 1));
+      },
+
+      atanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < -1 || value > 1) {
+          return NaN;
+        }
+        if (value === -1) return -Infinity;
+        if (value === 1) return Infinity;
+        if (value === 0) return value;
+        return 0.5 * Math.log((1 + value) / (1 - value));
+      },
+
+      cbrt: function(value) {
+        value = Number(value);
+        if (value === 0) return value;
+        var negate = value < 0, result;
+        if (negate) value = -value;
+        result = Math.pow(value, 1/3);
+        return negate ? -result : result;
+      },
+
+      cosh: function(value) {
+        value = Number(value);
+        if (value === 0) return 1; // +0 or -0
+        if (!global_isFinite(value)) return value;
+        if (value < 0) value = -value;
+        if (value > 21) return Math.exp(value) / 2;
+        return (Math.exp(value) + Math.exp(-value)) / 2;
+      },
+
+      expm1: function(value) {
+        value = Number(value);
+        if (value === -Infinity) return -1;
+        if (!global_isFinite(value) || value === 0) return value;
+        var result = 0;
+        var n = 50;
+        for (var i = 1; i < n; i++) {
+          for (var j = 2, factorial = 1; j <= i; j++) {
+            factorial *= j;
+          }
+          result += Math.pow(value, i) / factorial;
+        }
+        return result;
+      },
+
+      hypot: function(x, y) {
+        var anyNaN = false;
+        var allZero = true;
+        var anyInfinity = false;
+        var numbers = [];
+        Array.prototype.every.call(arguments, function(arg) {
+          var num = Number(arg);
+          if (Number.isNaN(num)) anyNaN = true;
+          else if (num === Infinity || num === -Infinity) anyInfinity = true;
+          else if (num !== 0) allZero = false;
+          if (anyInfinity) {
+            return false;
+          } else if (!anyNaN) {
+            numbers.push(Math.abs(num));
+          }
+          return true;
+        });
+        if (anyInfinity) return Infinity;
+        if (anyNaN) return NaN;
+        if (allZero) return 0;
+
+        numbers.sort(function (a, b) { return b - a; });
+        var largest = numbers[0];
+        var divided = numbers.map(function (number) { return number / largest; });
+        var sum = divided.reduce(function (sum, number) { return sum += number * number; }, 0);
+        return largest * Math.sqrt(sum);
+      },
+
+      log2: function(value) {
+        return Math.log(value) * Math.LOG2E;
+      },
+
+      log10: function(value) {
+        return Math.log(value) * Math.LOG10E;
+      },
+
+      log1p: function(value) {
+        value = Number(value);
+        if (value < -1 || Number.isNaN(value)) return NaN;
+        if (value === 0 || value === Infinity) return value;
+        if (value === -1) return -Infinity;
+        var result = 0;
+        var n = 50;
+
+        if (value < 0 || value > 1) return Math.log(1 + value);
+        for (var i = 1; i < n; i++) {
+          if ((i % 2) === 0) {
+            result -= Math.pow(value, i) / i;
+          } else {
+            result += Math.pow(value, i) / i;
+          }
+        }
+
+        return result;
+      },
+
+      sign: function(value) {
+        var number = +value;
+        if (number === 0) return number;
+        if (Number.isNaN(number)) return number;
+        return number < 0 ? -1 : 1;
+      },
+
+      sinh: function(value) {
+        value = Number(value);
+        if (!global_isFinite(value) || value === 0) return value;
+        return (Math.exp(value) - Math.exp(-value)) / 2;
+      },
+
+      tanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value === 0) return value;
+        if (value === Infinity) return 1;
+        if (value === -Infinity) return -1;
+        return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+      },
+
+      trunc: function(value) {
+        var number = Number(value);
+        return number < 0 ? -Math.floor(-number) : Math.floor(number);
+      },
+
+      imul: function(x, y) {
+        // taken from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
+        var ah  = (x >>> 16) & 0xffff;
+        var al = x & 0xffff;
+        var bh  = (y >>> 16) & 0xffff;
+        var bl = y & 0xffff;
+        // the shift by 0 fixes the sign on the high part
+        // the final |0 converts the unsigned value into a signed value
+        return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);
+      }
+    });
+
+    // Map and Set require a true ES5 environment
+    if (supportsDescriptors) {
+
+      var fastkey = function fastkey(key) {
+        var type = typeof key;
+        if (type === 'string') {
+          return '$' + key;
+        } else if (type === 'number' && !Object.is(key, -0)) {
+          return key;
+        }
+        return null;
+      };
+
+      var emptyObject = function emptyObject() {
+        // accomodate some older not-quite-ES5 browsers
+        return Object.create ? Object.create(null) : {};
+      };
+
+      var collectionShims = {
+        Map: (function() {
+
+          var empty = {};
+
+          function MapEntry(key, value) {
+            this.key = key;
+            this.value = value;
+            this.next = null;
+            this.prev = null;
+          }
+
+          MapEntry.prototype.isRemoved = function() {
+            return this.key === empty;
+          };
+
+          function MapIterator(map, kind) {
+            this.head = map._head;
+            this.i = this.head.next;
+            this.kind = kind;
+          }
+
+          MapIterator.prototype = {
+            next: function() {
+              var i = this.i, kind = this.kind, head = this.head, result;
+              while (i !== head) {
+                this.i = i.next;
+                if (!i.isRemoved()) {
+                  if (kind === "key") {
+                    result = i.key;
+                  } else if (kind === "value") {
+                    result = i.value;
+                  } else {
+                    result = [i.key, i.value];
+                  }
+                  return { value: result, done: false };
+                }
+                i = this.i;
+              }
+              return { value: undefined, done: true };
+            }
+          };
+
+          function Map() {
+            if (!(this instanceof Map)) throw new TypeError('Map must be called with "new"');
+
+            var head = new MapEntry(null, null);
+            // circular doubly-linked list.
+            head.next = head.prev = head;
+
+            defineProperties(this, {
+              '_head': head,
+              '_storage': emptyObject(),
+              '_size': 0
+            });
+          }
+
+          Object.defineProperty(Map.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              return this._size;
+            }
+          });
+
+          defineProperties(Map.prototype, {
+            get: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                var entry = this._storage[fkey];
+                return entry ? entry.value : undefined;
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (Object.is(i.key, key)) {
+                  return i.value;
+                }
+              }
+              return undefined;
+            },
+
+            has: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                return fkey in this._storage;
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (Object.is(i.key, key)) {
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            set: function(key, value) {
+              var head = this._head, i = head, entry;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (fkey in this._storage) {
+                  this._storage[fkey].value = value;
+                  return;
+                } else {
+                  entry = this._storage[fkey] = new MapEntry(key, value);
+                  i = head.prev;
+                  // fall through
+                }
+              }
+              while ((i = i.next) !== head) {
+                if (Object.is(i.key, key)) {
+                  i.value = value;
+                  return;
+                }
+              }
+              entry = entry ? entry : new MapEntry(key, value);
+              entry.next = this._head;
+              entry.prev = this._head.prev;
+              entry.prev.next = entry;
+              entry.next.prev = entry;
+              this._size += 1;
+            },
+
+            'delete': function(key) {
+              var head = this._head, i = head;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (!(fkey in this._storage)) {
+                  return false;
+                }
+                i = this._storage[fkey].prev;
+                delete this._storage[fkey];
+                // fall through
+              }
+              while ((i = i.next) !== head) {
+                if (Object.is(i.key, key)) {
+                  i.key = i.value = empty;
+                  i.prev.next = i.next;
+                  i.next.prev = i.prev;
+                  this._size -= 1;
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            clear: function() {
+              this._size = 0;
+              this._storage = emptyObject();
+              var head = this._head, i = head, p = i.next;
+              while ((i = p) !== head) {
+                i.key = i.value = empty;
+                p = i.next;
+                i.next = i.prev = head;
+              }
+              head.next = head.prev = head;
+            },
+
+            keys: function() {
+              return new MapIterator(this, "key");
+            },
+
+            values: function() {
+              return new MapIterator(this, "value");
+            },
+
+            entries: function() {
+              return new MapIterator(this, "key+value");
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var entireMap = this;
+
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (!i.isRemoved()) {
+                  callback.call(context, i.value, i.key, entireMap);
+                }
+              }
+            }
+          });
+
+          return Map;
+        })(),
+
+        Set: (function() {
+          // Creating a Map is expensive.  To speed up the common case of
+          // Sets containing only string or numeric keys, we use an object
+          // as backing storage and lazily create a full Map only when
+          // required.
+          var SetShim = function Set() {
+            if (!(this instanceof SetShim)) throw new TypeError('Set must be called with "new"');
+            defineProperties(this, {
+              '[[SetData]]': null,
+              '_storage': emptyObject()
+            });
+          };
+
+          // Switch from the object backing storage to a full Map.
+          var ensureMap = function ensureMap(set) {
+            if (!set['[[SetData]]']) {
+              var m = set['[[SetData]]'] = new collectionShims.Map();
+              Object.keys(set._storage).forEach(function(k) {
+                // fast check for leading '$'
+                if (k.charCodeAt(0) === 36) {
+                  k = k.substring(1);
+                } else {
+                  k = +k;
+                }
+                m.set(k, k);
+              });
+              set._storage = null; // free old backing storage
+            }
+          };
+
+          Object.defineProperty(SetShim.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].size;
+            }
+          });
+
+          defineProperties(SetShim.prototype, {
+            has: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                return !!this._storage[fkey];
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].has(key);
+            },
+
+            add: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                this._storage[fkey]=true;
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].set(key, key);
+            },
+
+            'delete': function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                delete this._storage[fkey];
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]']['delete'](key);
+            },
+
+            clear: function() {
+              if (this._storage) {
+                this._storage = emptyObject();
+                return;
+              }
+              return this['[[SetData]]'].clear();
+            },
+
+            keys: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].keys();
+            },
+
+            values: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].values();
+            },
+
+            entries: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].entries();
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var entireSet = this;
+              ensureMap(this);
+              this['[[SetData]]'].forEach(function(value, key) {
+                callback.call(context, key, key, entireSet);
+              });
+            }
+          });
+
+          return SetShim;
+        })()
+      };
+      defineProperties(globals, collectionShims);
+
+      if (globals.Map || globals.Set) {
+        /*
+          - In Firefox < 23, Map#size is a function.
+          - In all current Firefox, Set#entries/keys/values & Map#clear do not exist
+          - https://bugzilla.mozilla.org/show_bug.cgi?id=869996
+          - In Firefox 24, Map and Set do not implement forEach
+        */
+        if (
+          typeof globals.Map.prototype.clear !== 'function' ||
+          new globals.Set().size !== 0 ||
+          new globals.Map().size !== 0 ||
+          typeof globals.Set.prototype.keys !== 'function' ||
+          typeof globals.Map.prototype.forEach !== 'function' ||
+          typeof globals.Set.prototype.forEach !== 'function'
+        ) {
+          globals.Map = collectionShims.Map;
+          globals.Set = collectionShims.Set;
+        }
+      }
+    }
+  };
+
+  if (typeof define === 'function' && typeof define.amd === 'object' && define.amd) {
+    define(main); // RequireJS
+  } else {
+    main(); // CommonJS and <script>
+  }
+})();
diff --git a/ajax/libs/es6-shim/0.9.1/es6-shim.min.js b/ajax/libs/es6-shim/0.9.1/es6-shim.min.js
new file mode 100644
index 000000000..57fa60435
--- /dev/null
+++ b/ajax/libs/es6-shim/0.9.1/es6-shim.min.js
@@ -0,0 +1 @@
+!function(t){"use strict";var e=function(){try{return Object.defineProperty({},"x",{}),!0}catch(t){return!1}},r=function(){var r="undefined"==typeof global?window:global,n=r.isFinite,i=!!Object.defineProperty&&e(),o=Array.prototype.slice,a=String.prototype.indexOf,u=Object.prototype.toString,s=Object.prototype.hasOwnProperty,f=function(t,e){Object.keys(e).forEach(function(r){var n=e[r];r in t||(i?Object.defineProperty(t,r,{configurable:!0,enumerable:!1,writable:!0,value:n}):t[r]=n)})},h={ToInt32:function(t){return t>>0},ToUint32:function(t){return t>>>0},toInteger:function(t){var e=+t;return Number.isNaN(e)?0:0!==e&&Number.isFinite(e)?Math.sign(e)*Math.floor(Math.abs(e)):e}};f(String,{fromCodePoint:function(){for(var t,e=o.call(arguments,0),r=[],n=0,i=e.length;i>n;n++){if(t=Number(e[n]),!Object.is(t,h.toInteger(t))||0>t||t>1114111)throw new RangeError("Invalid code point "+t);65536>t?r.push(String.fromCharCode(t)):(t-=65536,r.push(String.fromCharCode((t>>10)+55296)),r.push(String.fromCharCode(t%1024+56320)))}return r.join("")},raw:function(){var e=arguments[0],r=o.call(arguments,1),n=Object(e),i=n.raw,a=Object(i),u=Object.keys(a).length,s=h.ToUint32(u);if(0===s)return"";for(var f,c,l,p,g=[],y=0;s>y&&(f=String(y),c=a[f],l=String(c),g.push(l),!(y+1>=s))&&(c=r[f],c!==t);)p=String(c),g.push(p),y++;return g.join("")}}),f(String.prototype,{repeat:function(){var t=function(e,r){if(1>r)return"";if(r%2)return t(e,r-1)+e;var n=t(e,r/2);return n+n};return function(e){if(e=h.toInteger(e),0>e||1/0===e)throw new RangeError;return t(String(this),e)}}(),startsWith:function(t){if(null==this)throw new TypeError("Cannot call method 'startsWith' of "+this);var e=String(this);t=String(t);var r=Math.max(h.toInteger(arguments[1]),0);return e.slice(r,r+t.length)===t},endsWith:function(e){if(null==this)throw new TypeError("Cannot call method 'endsWith' of "+this);var r=String(this);e=String(e);var n=r.length,i=arguments[1]===t?n:h.toInteger(arguments[1]),o=Math.min(i,n);return r.slice(o-e.length,o)===e},contains:function(t){var e=arguments[1];return-1!==a.call(this,t,e)},codePointAt:function(e){var r=String(this),n=h.toInteger(e),i=r.length;if(0>n||n>=i)return t;var o=r.charCodeAt(n),a=n+1===i;if(55296>o||o>56319||a)return o;var u=r.charCodeAt(n+1);return 56320>u||u>57343?o:1024*(o-55296)+(u-56320)+65536}}),f(Array,{from:function(e){var r=arguments[1],n=arguments[2];if(r!==t&&"[object Function]"!==u.call(r))throw new TypeError("when provided, the second argument must be a function");for(var i=Object(e),o=h.ToUint32(i.length),a="function"==typeof this?Object(new this(o)):new Array(o),s=0;o>s;s++){var f=i[s];a[s]=r!==t?n?r.call(n,f):r(f):f}return a.length=o,a},of:function(){return Array.from(arguments)}}),f(r,{ArrayIterator:function(t,e){this.i=0,this.array=t,this.kind=e}}),f(ArrayIterator.prototype,{next:function(){var t=this.i;this.i=t+1;var e=this.array;if(t>=e.length)throw new Error;if(e.hasOwnProperty(t)){var r,n=this.kind;"key"===n&&(r=t),"value"===n&&(r=e[t]),"entry"===n&&(r=[t,e[t]])}else r=this.next();return r}}),f(Array.prototype,{copyWithin:function(t,e){var r=Object(this),n=Math.max(h.toInteger(r.length),0),i=0>t?Math.max(n+t,0):Math.min(t,n),o=0>e?Math.max(n+e,0):Math.min(e,n),a=arguments.length>2?arguments[2]:n,u=0>a?Math.max(n+a,0):Math.min(a,n),f=Math.min(u-o,n-i),c=1;for(i>o&&o+f>i&&(c=-1,o+=f-1,i+=f-1);f>0;)s.call(r,o)?r[i]=r[o]:delete r[o],o+=c,i+=c,f-=1;return r},fill:function(t){for(var e=this.length,r=arguments.length>1?h.toInteger(arguments[1]):0,n=arguments.length>2?h.toInteger(arguments[2]):e,i=0>r?Math.max(e+r,0):Math.min(r,e),o=i;e>o&&n>o;++o)this[o]=t;return this},find:function(e){var r=Object(this),n=h.ToUint32(r.length);if(0===n)return t;if("function"!=typeof e)throw new TypeError("Array#find: predicate must be a function");for(var i,o=arguments[1],a=0;n>a&&a in r;a++)if(i=r[a],e.call(o,i,a,r))return i;return t},findIndex:function(t){var e=Object(this),r=h.ToUint32(e.length);if(0===r)return-1;if("function"!=typeof t)throw new TypeError("Array#findIndex: predicate must be a function");for(var n,i=arguments[1],o=0;r>o&&o in e;o++)if(n=e[o],t.call(i,n,o,e))return o;return-1},keys:function(){return new ArrayIterator(this,"key")},values:function(){return new ArrayIterator(this,"value")},entries:function(){return new ArrayIterator(this,"entry")}});var c=Math.pow(2,53)-1;if(f(Number,{MAX_SAFE_INTEGER:c,MIN_SAFE_INTEGER:-c,EPSILON:2.220446049250313e-16,parseInt:r.parseInt,parseFloat:r.parseFloat,isFinite:function(t){return"number"==typeof t&&n(t)},isSafeInteger:function(t){return"number"==typeof t&&!Number.isNaN(t)&&Number.isFinite(t)&&parseInt(t,10)===t&&Math.abs(t)<=Number.MAX_SAFE_INTEGER},isNaN:function(t){return t!==t}}),f(Number.prototype,{clz:function(){var t=+this;return t&&Number.isFinite(t)?(t=0>t?Math.ceil(t):Math.floor(t),t-=4294967296*Math.floor(t/4294967296),32-t.toString(2).length):32}}),i&&(f(Object,{getOwnPropertyDescriptors:function(t){var e={};return Object.getOwnPropertyNames(t).forEach(function(r){e[r]=Object.getOwnPropertyDescriptor(t,r)}),e},getPropertyDescriptor:function(e,r){for(var n=Object.getOwnPropertyDescriptor(e,r),i=Object.getPrototypeOf(e);n===t&&null!==i;)n=Object.getOwnPropertyDescriptor(i,r),i=Object.getPrototypeOf(i);return n},getPropertyNames:function(t){for(var e=Object.getOwnPropertyNames(t),r=Object.getPrototypeOf(t),n=function(t){-1===e.indexOf(t)&&e.push(t)};null!==r;)Object.getOwnPropertyNames(r).forEach(n),r=Object.getPrototypeOf(r);return e},assign:function(t,e){return Object.keys(e).reduce(function(t,r){return t[r]=e[r],t},t)},mixin:function(t,e){var r=Object.getOwnPropertyNames(e);return r.reduce(function(t,r){var n=Object.getOwnPropertyDescriptor(e,r);return Object.defineProperty(t,r,n)},t)}}),f(Object,{setPrototypeOf:function(t,e){var r,n=function(t,e){if("object"!=typeof t||null===t)throw new TypeError("cannot set prototype on a non-object");if("object"!=typeof e)throw new TypeError("can only set prototype to an object or null")},i=function(t,e){return n(t,e),r.call(t,e),t};try{r=t.getOwnPropertyDescriptor(t.prototype,e).set,r.call({},null)}catch(o){if(t.prototype!=={}[e])return;r=function(t){this[e]=t},i.polyfill=i(i({},null),t.prototype)instanceof t}return i}(Object,"__proto__")})),f(Object,{getOwnPropertyKeys:function(t){return Object.keys(t)},is:function(t,e){return t===e?0===t?1/t===1/e:!0:Number.isNaN(t)&&Number.isNaN(e)}}),f(Math,{acosh:function(t){return t=Number(t),Number.isNaN(t)||1>t?0/0:1===t?0:1/0===t?t:Math.log(t+Math.sqrt(t*t-1))},asinh:function(t){return t=Number(t),0!==t&&n(t)?Math.log(t+Math.sqrt(t*t+1)):t},atanh:function(t){return t=Number(t),Number.isNaN(t)||-1>t||t>1?0/0:-1===t?-1/0:1===t?1/0:0===t?t:.5*Math.log((1+t)/(1-t))},cbrt:function(t){if(t=Number(t),0===t)return t;var e,r=0>t;return r&&(t=-t),e=Math.pow(t,1/3),r?-e:e},cosh:function(t){return t=Number(t),0===t?1:n(t)?(0>t&&(t=-t),t>21?Math.exp(t)/2:(Math.exp(t)+Math.exp(-t))/2):t},expm1:function(t){if(t=Number(t),t===-1/0)return-1;if(!n(t)||0===t)return t;for(var e=0,r=50,i=1;r>i;i++){for(var o=2,a=1;i>=o;o++)a*=o;e+=Math.pow(t,i)/a}return e},hypot:function(){var t=!1,e=!0,r=!1,n=[];if(Array.prototype.every.call(arguments,function(i){var o=Number(i);return Number.isNaN(o)?t=!0:1/0===o||o===-1/0?r=!0:0!==o&&(e=!1),r?!1:(t||n.push(Math.abs(o)),!0)}),r)return 1/0;if(t)return 0/0;if(e)return 0;n.sort(function(t,e){return e-t});var i=n[0],o=n.map(function(t){return t/i}),a=o.reduce(function(t,e){return t+=e*e},0);return i*Math.sqrt(a)},log2:function(t){return Math.log(t)*Math.LOG2E},log10:function(t){return Math.log(t)*Math.LOG10E},log1p:function(t){if(t=Number(t),-1>t||Number.isNaN(t))return 0/0;if(0===t||1/0===t)return t;if(-1===t)return-1/0;var e=0,r=50;if(0>t||t>1)return Math.log(1+t);for(var n=1;r>n;n++)n%2===0?e-=Math.pow(t,n)/n:e+=Math.pow(t,n)/n;return e},sign:function(t){var e=+t;return 0===e?e:Number.isNaN(e)?e:0>e?-1:1},sinh:function(t){return t=Number(t),n(t)&&0!==t?(Math.exp(t)-Math.exp(-t))/2:t},tanh:function(t){return t=Number(t),Number.isNaN(t)||0===t?t:1/0===t?1:t===-1/0?-1:(Math.exp(t)-Math.exp(-t))/(Math.exp(t)+Math.exp(-t))},trunc:function(t){var e=Number(t);return 0>e?-Math.floor(-e):Math.floor(e)},imul:function(t,e){var r=t>>>16&65535,n=65535&t,i=e>>>16&65535,o=65535&e;return n*o+(r*o+n*i<<16>>>0)|0}}),i){var l=function(t){var e=typeof t;return"string"===e?"$"+t:"number"!==e||Object.is(t,-0)?null:t},p=function(){return Object.create?Object.create(null):{}},g={Map:function(){function e(t,e){this.key=t,this.value=e,this.next=null,this.prev=null}function r(t,e){this.head=t._head,this.i=this.head.next,this.kind=e}function n(){if(!(this instanceof n))throw new TypeError('Map must be called with "new"');var t=new e(null,null);t.next=t.prev=t,f(this,{_head:t,_storage:p(),_size:0})}var i={};return e.prototype.isRemoved=function(){return this.key===i},r.prototype={next:function(){for(var e,r=this.i,n=this.kind,i=this.head;r!==i;){if(this.i=r.next,!r.isRemoved())return e="key"===n?r.key:"value"===n?r.value:[r.key,r.value],{value:e,done:!1};r=this.i}return{value:t,done:!0}}},Object.defineProperty(n.prototype,"size",{configurable:!0,enumerable:!1,get:function(){return this._size}}),f(n.prototype,{get:function(e){var r=l(e);if(null!==r){var n=this._storage[r];return n?n.value:t}for(var i=this._head,o=i;(o=o.next)!==i;)if(Object.is(o.key,e))return o.value;return t},has:function(t){var e=l(t);if(null!==e)return e in this._storage;for(var r=this._head,n=r;(n=n.next)!==r;)if(Object.is(n.key,t))return!0;return!1},set:function(t,r){var n,i=this._head,o=i,a=l(t);if(null!==a){if(a in this._storage)return void(this._storage[a].value=r);n=this._storage[a]=new e(t,r),o=i.prev}for(;(o=o.next)!==i;)if(Object.is(o.key,t))return void(o.value=r);n=n?n:new e(t,r),n.next=this._head,n.prev=this._head.prev,n.prev.next=n,n.next.prev=n,this._size+=1},"delete":function(t){var e=this._head,r=e,n=l(t);if(null!==n){if(!(n in this._storage))return!1;r=this._storage[n].prev,delete this._storage[n]}for(;(r=r.next)!==e;)if(Object.is(r.key,t))return r.key=r.value=i,r.prev.next=r.next,r.next.prev=r.prev,this._size-=1,!0;return!1},clear:function(){this._size=0,this._storage=p();for(var t=this._head,e=t,r=e.next;(e=r)!==t;)e.key=e.value=i,r=e.next,e.next=e.prev=t;t.next=t.prev=t},keys:function(){return new r(this,"key")},values:function(){return new r(this,"value")},entries:function(){return new r(this,"key+value")},forEach:function(t){for(var e=arguments.length>1?arguments[1]:null,r=this,n=this._head,i=n;(i=i.next)!==n;)i.isRemoved()||t.call(e,i.value,i.key,r)}}),n}(),Set:function(){var t=function(){if(!(this instanceof t))throw new TypeError('Set must be called with "new"');f(this,{"[[SetData]]":null,_storage:p()})},e=function(t){if(!t["[[SetData]]"]){var e=t["[[SetData]]"]=new g.Map;Object.keys(t._storage).forEach(function(t){t=36===t.charCodeAt(0)?t.substring(1):+t,e.set(t,t)}),t._storage=null}};return Object.defineProperty(t.prototype,"size",{configurable:!0,enumerable:!1,get:function(){return e(this),this["[[SetData]]"].size}}),f(t.prototype,{has:function(t){var r;return this._storage&&null!==(r=l(t))?!!this._storage[r]:(e(this),this["[[SetData]]"].has(t))},add:function(t){var r;return this._storage&&null!==(r=l(t))?void(this._storage[r]=!0):(e(this),this["[[SetData]]"].set(t,t))},"delete":function(t){var r;return this._storage&&null!==(r=l(t))?void delete this._storage[r]:(e(this),this["[[SetData]]"]["delete"](t))},clear:function(){return this._storage?void(this._storage=p()):this["[[SetData]]"].clear()},keys:function(){return e(this),this["[[SetData]]"].keys()},values:function(){return e(this),this["[[SetData]]"].values()},entries:function(){return e(this),this["[[SetData]]"].entries()},forEach:function(t){var r=arguments.length>1?arguments[1]:null,n=this;e(this),this["[[SetData]]"].forEach(function(e,i){t.call(r,i,i,n)})}}),t}()};f(r,g),(r.Map||r.Set)&&("function"!=typeof r.Map.prototype.clear||0!==(new r.Set).size||0!==(new r.Map).size||"function"!=typeof r.Set.prototype.keys||"function"!=typeof r.Map.prototype.forEach||"function"!=typeof r.Set.prototype.forEach)&&(r.Map=g.Map,r.Set=g.Set)}};"function"==typeof define&&"object"==typeof define.amd&&define.amd?define(r):r()}();
\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.9.2/es6-shim.js b/ajax/libs/es6-shim/0.9.2/es6-shim.js
new file mode 100644
index 000000000..4b7150299
--- /dev/null
+++ b/ajax/libs/es6-shim/0.9.2/es6-shim.js
@@ -0,0 +1,1000 @@
+// ES6-shim 0.9.2 (c) 2013 Paul Miller (http://paulmillr.com)
+// ES6-shim may be freely distributed under the MIT license.
+// For more details and documentation:
+// https://github.com/paulmillr/es6-shim/
+
+(function(undefined) {
+  'use strict';
+
+  var arePropertyDescriptorsSupported = function() {
+    try {
+      Object.defineProperty({}, 'x', {});
+      return true;
+    } catch (e) { /* this is IE 8. */
+      return false;
+    }
+  };
+
+  var main = function() {
+    var globals = (typeof global === 'undefined') ? window : global;
+    var global_isFinite = globals.isFinite;
+    var supportsDescriptors = !!Object.defineProperty && arePropertyDescriptorsSupported();
+    var _slice = Array.prototype.slice;
+    var _indexOf = String.prototype.indexOf;
+    var _toString = Object.prototype.toString;
+    var _hasOwnProperty = Object.prototype.hasOwnProperty;
+
+    // Define configurable, writable and non-enumerable props
+    // if they don’t exist.
+    var defineProperties = function(object, map) {
+      Object.keys(map).forEach(function(name) {
+        var method = map[name];
+        if (name in object) return;
+        if (supportsDescriptors) {
+          Object.defineProperty(object, name, {
+            configurable: true,
+            enumerable: false,
+            writable: true,
+            value: method
+          });
+        } else {
+          object[name] = method;
+        }
+      });
+    };
+
+    var ES = {
+      CheckObjectCoercible: function(x) {
+        if (x == null) throw TypeError('Cannot call method on ' + x);
+        return x;
+      },
+
+      ToInt32: function(x) {
+        return x >> 0;
+      },
+
+      ToUint32: function(x) {
+        return x >>> 0;
+      },
+
+      toInteger: function(value) {
+        var number = +value;
+        if (Number.isNaN(number)) return 0;
+        if (number === 0 || !Number.isFinite(number)) return number;
+        return Math.sign(number) * Math.floor(Math.abs(number));
+      }
+    };
+
+    defineProperties(String, {
+      fromCodePoint: function() {
+        var points = _slice.call(arguments, 0);
+        var result = [];
+        var next;
+        for (var i = 0, length = points.length; i < length; i++) {
+          next = Number(points[i]);
+          if (!Object.is(next, ES.toInteger(next)) ||
+              next < 0 || next > 0x10FFFF) {
+            throw new RangeError('Invalid code point ' + next);
+          }
+
+          if (next < 0x10000) {
+            result.push(String.fromCharCode(next));
+          } else {
+            next -= 0x10000;
+            result.push(String.fromCharCode((next >> 10) + 0xD800));
+            result.push(String.fromCharCode((next % 0x400) + 0xDC00));
+          }
+        }
+        return result.join('');
+      },
+
+      raw: function() {
+        var callSite = arguments[0];
+        var substitutions = _slice.call(arguments, 1);
+        var cooked = Object(callSite);
+        var rawValue = cooked.raw;
+        var raw = Object(rawValue);
+        var len = Object.keys(raw).length;
+        var literalsegments = ES.ToUint32(len);
+        if (literalsegments === 0) {
+          return '';
+        }
+
+        var stringElements = [];
+        var nextIndex = 0;
+        var nextKey, next, nextSeg, nextSub;
+        while (nextIndex < literalsegments) {
+          nextKey = String(nextIndex);
+          next = raw[nextKey];
+          nextSeg = String(next);
+          stringElements.push(nextSeg);
+          if (nextIndex + 1 >= literalsegments) {
+            break;
+          }
+          next = substitutions[nextKey];
+          if (next === undefined) {
+            break;
+          }
+          nextSub = String(next);
+          stringElements.push(nextSub);
+          nextIndex++;
+        }
+        return stringElements.join('');
+      }
+    });
+
+    defineProperties(String.prototype, {
+      // Fast repeat, uses the `Exponentiation by squaring` algorithm.
+      // Perf: http://jsperf.com/string-repeat2/2
+      repeat: (function() {
+        var repeat = function(s, times) {
+          if (times < 1) return '';
+          if (times % 2) return repeat(s, times - 1) + s;
+          var half = repeat(s, times / 2);
+          return half + half;
+        };
+
+        return function(times) {
+          var thisStr = String(ES.CheckObjectCoercible(this));
+          times = ES.toInteger(times);
+          if (times < 0 || times === Infinity) {
+            throw new RangeError('Invalid String#repeat value');
+          }
+          return repeat(thisStr, times);
+        };
+      })(),
+
+      startsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "startsWith" with a regex');
+        searchStr = String(searchStr);
+        var start = Math.max(ES.toInteger(arguments[1]), 0);
+        return thisStr.slice(start, start + searchStr.length) === searchStr;
+      },
+
+      endsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "endsWith" with a regex');
+        searchStr = String(searchStr);
+        var thisLen = thisStr.length;
+        var pos = arguments[1] === undefined ? thisLen : ES.toInteger(arguments[1]);
+        var end = Math.min(Math.max(pos, 0), thisLen);
+        return thisStr.slice(end - searchStr.length, end) === searchStr;
+      },
+
+      contains: function(searchString) {
+        var position = arguments[1];
+        // Somehow this trick makes method 100% compat with the spec.
+        return _indexOf.call(this, searchString, position) !== -1;
+      },
+
+      codePointAt: function(pos) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        var position = ES.toInteger(pos);
+        var length = thisStr.length;
+        if (position < 0 || position >= length) return undefined;
+        var first = thisStr.charCodeAt(position);
+        var isEnd = (position + 1 === length);
+        if (first < 0xD800 || first > 0xDBFF || isEnd) return first;
+        var second = thisStr.charCodeAt(position + 1);
+        if (second < 0xDC00 || second > 0xDFFF) return first;
+        return ((first - 0xD800) * 1024) + (second - 0xDC00) + 0x10000;
+      }
+    });
+
+    defineProperties(Array, {
+      from: function(iterable) {
+        var mapFn = arguments[1];
+        var thisArg = arguments[2];
+
+        if (mapFn !== undefined && _toString.call(mapFn) !== '[object Function]') {
+          throw new TypeError('Array.from: when provided, the second argument must be a function');
+        }
+
+        var list = Object(iterable);
+        var length = ES.ToUint32(list.length);
+        var result = typeof this === 'function' ? Object(new this(length)) : new Array(length);
+
+        for (var i = 0; i < length; i++) {
+          var value = list[i];
+          if (mapFn !== undefined) {
+            result[i] = thisArg ? mapFn.call(thisArg, value) : mapFn(value);
+          } else {
+            result[i] = value;
+          }
+        }
+
+        result.length = length;
+        return result;
+      },
+
+      of: function() {
+        return Array.from(arguments);
+      }
+    });
+
+    defineProperties(globals, {
+      ArrayIterator: function(array, kind) {
+        this.i = 0;
+        this.array = array;
+        this.kind = kind;
+      }
+    });
+
+    defineProperties(ArrayIterator.prototype, {
+      next: function() {
+        var i = this.i;
+        this.i = i + 1;
+        var array = this.array;
+
+        if (i >= array.length) {
+          throw new Error();
+        }
+
+        if (array.hasOwnProperty(i)) {
+          var kind = this.kind;
+          var retval;
+          if (kind === "key") {
+            retval = i;
+          }
+          if (kind === "value") {
+            retval = array[i];
+          }
+          if (kind === "entry") {
+            retval = [i, array[i]];
+          }
+        } else {
+          retval = this.next();
+        }
+        return retval;
+      }
+    });
+
+    defineProperties(Array.prototype, {
+      copyWithin: function(target, start) {
+        var o = Object(this);
+        var len = Math.max(ES.toInteger(o.length), 0);
+        var to = target < 0 ? Math.max(len + target, 0) : Math.min(target, len);
+        var from = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+        var end = arguments.length > 2 ? arguments[2] : len;
+        var final = end < 0 ? Math.max(len + end, 0) : Math.min(end, len);
+        var count = Math.min(final - from, len - to);
+        var direction = 1;
+        if (from < to && to < (from + count)) {
+          direction = -1;
+          from += count - 1;
+          to += count - 1;
+        }
+        while (count > 0) {
+          if (_hasOwnProperty.call(o, from)) {
+            o[to] = o[from];
+          } else {
+            delete o[from];
+          }
+          from += direction;
+          to += direction;
+          count -= 1;
+        }
+        return o;
+      },
+      fill: function(value) {
+        var len = this.length;
+        var start = arguments.length > 1 ? ES.toInteger(arguments[1]) : 0;
+        var end = arguments.length > 2 ? ES.toInteger(arguments[2]) : len;
+
+        var relativeStart = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+
+        for (var i = relativeStart; i < len && i < end; ++i) {
+          this[i] = value;
+        }
+        return this;
+      },
+
+      find: function(predicate) {
+        var list = Object(this);
+        var length = ES.ToUint32(list.length);
+        if (length === 0) return undefined;
+        if (typeof predicate !== 'function') {
+          throw new TypeError('Array#find: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0, value; i < length && i in list; i++) {
+          value = list[i];
+          if (predicate.call(thisArg, value, i, list)) return value;
+        }
+        return undefined;
+      },
+
+      findIndex: function(predicate) {
+        var list = Object(this);
+        var length = ES.ToUint32(list.length);
+        if (length === 0) return -1;
+        if (typeof predicate !== 'function') {
+          throw new TypeError('Array#findIndex: predicate must be a function');
+        }
+        var thisArg = arguments[1];
+        for (var i = 0, value; i < length && i in list; i++) {
+          value = list[i];
+          if (predicate.call(thisArg, value, i, list)) return i;
+        }
+        return -1;
+      },
+
+      keys: function() {
+        return new ArrayIterator(this, "key");
+      },
+
+      values: function() {
+        return new ArrayIterator(this, "value");
+      },
+
+      entries: function() {
+        return new ArrayIterator(this, "entry");
+      }
+    });
+
+    var maxSafeInteger = Math.pow(2, 53) - 1;
+    defineProperties(Number, {
+      MAX_SAFE_INTEGER: maxSafeInteger,
+      MIN_SAFE_INTEGER: -maxSafeInteger,
+      EPSILON: 2.220446049250313e-16,
+
+      parseInt: globals.parseInt,
+      parseFloat: globals.parseFloat,
+
+      isFinite: function(value) {
+        return typeof value === 'number' && global_isFinite(value);
+      },
+
+      isSafeInteger: function(value) {
+        return typeof value === 'number' &&
+          !Number.isNaN(value) &&
+          Number.isFinite(value) &&
+          parseInt(value, 10) === value &&
+          Math.abs(value) <= Number.MAX_SAFE_INTEGER;
+      },
+
+      isNaN: function(value) {
+        // NaN !== NaN, but they are identical.
+        // NaNs are the only non-reflexive value, i.e., if x !== x,
+        // then x is NaN.
+        // isNaN is broken: it converts its argument to number, so
+        // isNaN('foo') => true
+        return value !== value;
+      },
+
+    });
+
+    defineProperties(Number.prototype, {
+      clz: function() {
+        var number = +this;
+        if (!number || !Number.isFinite(number)) return 32;
+        number = number < 0 ? Math.ceil(number) : Math.floor(number);
+        number = number - Math.floor(number / 0x100000000) * 0x100000000;
+        return 32 - (number).toString(2).length;
+      }
+    });
+
+    if (supportsDescriptors) {
+      defineProperties(Object, {
+        getOwnPropertyDescriptors: function(subject) {
+          var descs = {};
+          Object.getOwnPropertyNames(subject).forEach(function(propName) {
+            descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+          });
+          return descs;
+        },
+
+        getPropertyDescriptor: function(subject, name) {
+          var pd = Object.getOwnPropertyDescriptor(subject, name);
+          var proto = Object.getPrototypeOf(subject);
+          while (pd === undefined && proto !== null) {
+            pd = Object.getOwnPropertyDescriptor(proto, name);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return pd;
+        },
+
+        getPropertyNames: function(subject) {
+          var result = Object.getOwnPropertyNames(subject);
+          var proto = Object.getPrototypeOf(subject);
+
+          var addProperty = function(property) {
+            if (result.indexOf(property) === -1) {
+              result.push(property);
+            }
+          };
+
+          while (proto !== null) {
+            Object.getOwnPropertyNames(proto).forEach(addProperty);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return result;
+        },
+
+        // 19.1.3.1
+        assign: function(target, source) {
+          return Object.keys(source).reduce(function(target, key) {
+            target[key] = source[key];
+            return target;
+          }, target);
+        },
+
+        // 19.1.3.15
+        mixin: function(target, source) {
+          var props = Object.getOwnPropertyNames(source);
+          return props.reduce(function(target, property) {
+            var descriptor = Object.getOwnPropertyDescriptor(source, property);
+            return Object.defineProperty(target, property, descriptor);
+          }, target);
+        }
+      });
+
+      // 19.1.3.9
+      // shim from https://gist.github.com/WebReflection/5593554
+      defineProperties(Object, {
+        setPrototypeOf: (function(Object, magic) {
+          var set;
+
+          var checkArgs = function(O, proto) {
+            if (typeof O !== 'object' || O === null) {
+              throw new TypeError('cannot set prototype on a non-object');
+            }
+            if (typeof proto !== 'object') {
+              throw new TypeError('can only set prototype to an object or null');
+            }
+          };
+
+          var setPrototypeOf = function(O, proto) {
+            checkArgs(O, proto);
+            set.call(O, proto);
+            return O;
+          };
+
+          try {
+            // this works already in Firefox and Safari
+            set = Object.getOwnPropertyDescriptor(Object.prototype, magic).set;
+            set.call({}, null);
+          } catch (e) {
+            if (Object.prototype !== {}[magic]) {
+              // IE < 11 cannot be shimmed
+              return;
+            }
+            // probably Chrome or some old Mobile stock browser
+            set = function(proto) {
+              this[magic] = proto;
+            };
+            // please note that this will **not** work
+            // in those browsers that do not inherit
+            // __proto__ by mistake from Object.prototype
+            // in these cases we should probably throw an error
+            // or at least be informed about the issue
+            setPrototypeOf.polyfill = setPrototypeOf(
+              setPrototypeOf({}, null),
+              Object.prototype
+            ) instanceof Object;
+            // setPrototypeOf.polyfill === true means it works as meant
+            // setPrototypeOf.polyfill === false means it's not 100% reliable
+            // setPrototypeOf.polyfill === undefined
+            // or
+            // setPrototypeOf.polyfill ==  null means it's not a polyfill
+            // which means it works as expected
+            // we can even delete Object.prototype.__proto__;
+          }
+          return setPrototypeOf;
+        })(Object, '__proto__')
+      });
+    }
+
+    defineProperties(Object, {
+      getOwnPropertyKeys: function(subject) {
+        return Object.keys(subject);
+      },
+
+      is: function(a, b) {
+        if (a === b) {
+          // 0 === -0, but they are not identical.
+          if (a === 0) return 1 / a === 1 / b;
+          return true;
+        }
+        return Number.isNaN(a) && Number.isNaN(b);
+      }
+    });
+
+    defineProperties(Math, {
+      acosh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < 1) return NaN;
+        if (value === 1) return 0;
+        if (value === Infinity) return value;
+        return Math.log(value + Math.sqrt(value * value - 1));
+      },
+
+      asinh: function(value) {
+        value = Number(value);
+        if (value === 0 || !global_isFinite(value)) {
+          return value;
+        }
+        return Math.log(value + Math.sqrt(value * value + 1));
+      },
+
+      atanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < -1 || value > 1) {
+          return NaN;
+        }
+        if (value === -1) return -Infinity;
+        if (value === 1) return Infinity;
+        if (value === 0) return value;
+        return 0.5 * Math.log((1 + value) / (1 - value));
+      },
+
+      cbrt: function(value) {
+        value = Number(value);
+        if (value === 0) return value;
+        var negate = value < 0, result;
+        if (negate) value = -value;
+        result = Math.pow(value, 1/3);
+        return negate ? -result : result;
+      },
+
+      cosh: function(value) {
+        value = Number(value);
+        if (value === 0) return 1; // +0 or -0
+        if (!global_isFinite(value)) return value;
+        if (value < 0) value = -value;
+        if (value > 21) return Math.exp(value) / 2;
+        return (Math.exp(value) + Math.exp(-value)) / 2;
+      },
+
+      expm1: function(value) {
+        value = Number(value);
+        if (value === -Infinity) return -1;
+        if (!global_isFinite(value) || value === 0) return value;
+        var result = 0;
+        var n = 50;
+        for (var i = 1; i < n; i++) {
+          for (var j = 2, factorial = 1; j <= i; j++) {
+            factorial *= j;
+          }
+          result += Math.pow(value, i) / factorial;
+        }
+        return result;
+      },
+
+      hypot: function(x, y) {
+        var anyNaN = false;
+        var allZero = true;
+        var anyInfinity = false;
+        var numbers = [];
+        Array.prototype.every.call(arguments, function(arg) {
+          var num = Number(arg);
+          if (Number.isNaN(num)) anyNaN = true;
+          else if (num === Infinity || num === -Infinity) anyInfinity = true;
+          else if (num !== 0) allZero = false;
+          if (anyInfinity) {
+            return false;
+          } else if (!anyNaN) {
+            numbers.push(Math.abs(num));
+          }
+          return true;
+        });
+        if (anyInfinity) return Infinity;
+        if (anyNaN) return NaN;
+        if (allZero) return 0;
+
+        numbers.sort(function (a, b) { return b - a; });
+        var largest = numbers[0];
+        var divided = numbers.map(function (number) { return number / largest; });
+        var sum = divided.reduce(function (sum, number) { return sum += number * number; }, 0);
+        return largest * Math.sqrt(sum);
+      },
+
+      log2: function(value) {
+        return Math.log(value) * Math.LOG2E;
+      },
+
+      log10: function(value) {
+        return Math.log(value) * Math.LOG10E;
+      },
+
+      log1p: function(value) {
+        value = Number(value);
+        if (value < -1 || Number.isNaN(value)) return NaN;
+        if (value === 0 || value === Infinity) return value;
+        if (value === -1) return -Infinity;
+        var result = 0;
+        var n = 50;
+
+        if (value < 0 || value > 1) return Math.log(1 + value);
+        for (var i = 1; i < n; i++) {
+          if ((i % 2) === 0) {
+            result -= Math.pow(value, i) / i;
+          } else {
+            result += Math.pow(value, i) / i;
+          }
+        }
+
+        return result;
+      },
+
+      sign: function(value) {
+        var number = +value;
+        if (number === 0) return number;
+        if (Number.isNaN(number)) return number;
+        return number < 0 ? -1 : 1;
+      },
+
+      sinh: function(value) {
+        value = Number(value);
+        if (!global_isFinite(value) || value === 0) return value;
+        return (Math.exp(value) - Math.exp(-value)) / 2;
+      },
+
+      tanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value === 0) return value;
+        if (value === Infinity) return 1;
+        if (value === -Infinity) return -1;
+        return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+      },
+
+      trunc: function(value) {
+        var number = Number(value);
+        return number < 0 ? -Math.floor(-number) : Math.floor(number);
+      },
+
+      imul: function(x, y) {
+        // taken from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
+        var ah  = (x >>> 16) & 0xffff;
+        var al = x & 0xffff;
+        var bh  = (y >>> 16) & 0xffff;
+        var bl = y & 0xffff;
+        // the shift by 0 fixes the sign on the high part
+        // the final |0 converts the unsigned value into a signed value
+        return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);
+      }
+    });
+
+    // Map and Set require a true ES5 environment
+    if (supportsDescriptors) {
+
+      var fastkey = function fastkey(key) {
+        var type = typeof key;
+        if (type === 'string') {
+          return '$' + key;
+        } else if (type === 'number' && !Object.is(key, -0)) {
+          return key;
+        }
+        return null;
+      };
+
+      var emptyObject = function emptyObject() {
+        // accomodate some older not-quite-ES5 browsers
+        return Object.create ? Object.create(null) : {};
+      };
+
+      var collectionShims = {
+        Map: (function() {
+
+          var empty = {};
+
+          function MapEntry(key, value) {
+            this.key = key;
+            this.value = value;
+            this.next = null;
+            this.prev = null;
+          }
+
+          MapEntry.prototype.isRemoved = function() {
+            return this.key === empty;
+          };
+
+          function MapIterator(map, kind) {
+            this.head = map._head;
+            this.i = this.head.next;
+            this.kind = kind;
+          }
+
+          MapIterator.prototype = {
+            next: function() {
+              var i = this.i, kind = this.kind, head = this.head, result;
+              while (i !== head) {
+                this.i = i.next;
+                if (!i.isRemoved()) {
+                  if (kind === "key") {
+                    result = i.key;
+                  } else if (kind === "value") {
+                    result = i.value;
+                  } else {
+                    result = [i.key, i.value];
+                  }
+                  return { value: result, done: false };
+                }
+                i = this.i;
+              }
+              return { value: undefined, done: true };
+            }
+          };
+
+          function Map() {
+            if (!(this instanceof Map)) throw new TypeError('Map must be called with "new"');
+
+            var head = new MapEntry(null, null);
+            // circular doubly-linked list.
+            head.next = head.prev = head;
+
+            defineProperties(this, {
+              '_head': head,
+              '_storage': emptyObject(),
+              '_size': 0
+            });
+          }
+
+          Object.defineProperty(Map.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              return this._size;
+            }
+          });
+
+          defineProperties(Map.prototype, {
+            get: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                var entry = this._storage[fkey];
+                return entry ? entry.value : undefined;
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (Object.is(i.key, key)) {
+                  return i.value;
+                }
+              }
+              return undefined;
+            },
+
+            has: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                return fkey in this._storage;
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (Object.is(i.key, key)) {
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            set: function(key, value) {
+              var head = this._head, i = head, entry;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (fkey in this._storage) {
+                  this._storage[fkey].value = value;
+                  return;
+                } else {
+                  entry = this._storage[fkey] = new MapEntry(key, value);
+                  i = head.prev;
+                  // fall through
+                }
+              }
+              while ((i = i.next) !== head) {
+                if (Object.is(i.key, key)) {
+                  i.value = value;
+                  return;
+                }
+              }
+              entry = entry ? entry : new MapEntry(key, value);
+              entry.next = this._head;
+              entry.prev = this._head.prev;
+              entry.prev.next = entry;
+              entry.next.prev = entry;
+              this._size += 1;
+            },
+
+            'delete': function(key) {
+              var head = this._head, i = head;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (!(fkey in this._storage)) {
+                  return false;
+                }
+                i = this._storage[fkey].prev;
+                delete this._storage[fkey];
+                // fall through
+              }
+              while ((i = i.next) !== head) {
+                if (Object.is(i.key, key)) {
+                  i.key = i.value = empty;
+                  i.prev.next = i.next;
+                  i.next.prev = i.prev;
+                  this._size -= 1;
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            clear: function() {
+              this._size = 0;
+              this._storage = emptyObject();
+              var head = this._head, i = head, p = i.next;
+              while ((i = p) !== head) {
+                i.key = i.value = empty;
+                p = i.next;
+                i.next = i.prev = head;
+              }
+              head.next = head.prev = head;
+            },
+
+            keys: function() {
+              return new MapIterator(this, "key");
+            },
+
+            values: function() {
+              return new MapIterator(this, "value");
+            },
+
+            entries: function() {
+              return new MapIterator(this, "key+value");
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var entireMap = this;
+
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (!i.isRemoved()) {
+                  callback.call(context, i.value, i.key, entireMap);
+                }
+              }
+            }
+          });
+
+          return Map;
+        })(),
+
+        Set: (function() {
+          // Creating a Map is expensive.  To speed up the common case of
+          // Sets containing only string or numeric keys, we use an object
+          // as backing storage and lazily create a full Map only when
+          // required.
+          var SetShim = function Set() {
+            if (!(this instanceof SetShim)) throw new TypeError('Set must be called with "new"');
+            defineProperties(this, {
+              '[[SetData]]': null,
+              '_storage': emptyObject()
+            });
+          };
+
+          // Switch from the object backing storage to a full Map.
+          var ensureMap = function ensureMap(set) {
+            if (!set['[[SetData]]']) {
+              var m = set['[[SetData]]'] = new collectionShims.Map();
+              Object.keys(set._storage).forEach(function(k) {
+                // fast check for leading '$'
+                if (k.charCodeAt(0) === 36) {
+                  k = k.substring(1);
+                } else {
+                  k = +k;
+                }
+                m.set(k, k);
+              });
+              set._storage = null; // free old backing storage
+            }
+          };
+
+          Object.defineProperty(SetShim.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].size;
+            }
+          });
+
+          defineProperties(SetShim.prototype, {
+            has: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                return !!this._storage[fkey];
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].has(key);
+            },
+
+            add: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                this._storage[fkey]=true;
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].set(key, key);
+            },
+
+            'delete': function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                delete this._storage[fkey];
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]']['delete'](key);
+            },
+
+            clear: function() {
+              if (this._storage) {
+                this._storage = emptyObject();
+                return;
+              }
+              return this['[[SetData]]'].clear();
+            },
+
+            keys: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].keys();
+            },
+
+            values: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].values();
+            },
+
+            entries: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].entries();
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var entireSet = this;
+              ensureMap(this);
+              this['[[SetData]]'].forEach(function(value, key) {
+                callback.call(context, key, key, entireSet);
+              });
+            }
+          });
+
+          return SetShim;
+        })()
+      };
+      defineProperties(globals, collectionShims);
+
+      if (globals.Map || globals.Set) {
+        /*
+          - In Firefox < 23, Map#size is a function.
+          - In all current Firefox, Set#entries/keys/values & Map#clear do not exist
+          - https://bugzilla.mozilla.org/show_bug.cgi?id=869996
+          - In Firefox 24, Map and Set do not implement forEach
+        */
+        if (
+          typeof globals.Map.prototype.clear !== 'function' ||
+          new globals.Set().size !== 0 ||
+          new globals.Map().size !== 0 ||
+          typeof globals.Set.prototype.keys !== 'function' ||
+          typeof globals.Map.prototype.forEach !== 'function' ||
+          typeof globals.Set.prototype.forEach !== 'function'
+        ) {
+          globals.Map = collectionShims.Map;
+          globals.Set = collectionShims.Set;
+        }
+      }
+    }
+  };
+
+  if (typeof define === 'function' && typeof define.amd === 'object' && define.amd) {
+    define(main); // RequireJS
+  } else {
+    main(); // CommonJS and <script>
+  }
+})();
diff --git a/ajax/libs/es6-shim/0.9.2/es6-shim.min.js b/ajax/libs/es6-shim/0.9.2/es6-shim.min.js
new file mode 100644
index 000000000..9ad82bdd1
--- /dev/null
+++ b/ajax/libs/es6-shim/0.9.2/es6-shim.min.js
@@ -0,0 +1 @@
+!function(t){"use strict";var e=function(){try{return Object.defineProperty({},"x",{}),!0}catch(t){return!1}},r=function(){var r="undefined"==typeof global?window:global,n=r.isFinite,i=!!Object.defineProperty&&e(),o=Array.prototype.slice,a=String.prototype.indexOf,u=Object.prototype.toString,s=Object.prototype.hasOwnProperty,c=function(t,e){Object.keys(e).forEach(function(r){var n=e[r];r in t||(i?Object.defineProperty(t,r,{configurable:!0,enumerable:!1,writable:!0,value:n}):t[r]=n)})},f={CheckObjectCoercible:function(t){if(null==t)throw TypeError("Cannot call method on "+t);return t},ToInt32:function(t){return t>>0},ToUint32:function(t){return t>>>0},toInteger:function(t){var e=+t;return Number.isNaN(e)?0:0!==e&&Number.isFinite(e)?Math.sign(e)*Math.floor(Math.abs(e)):e}};c(String,{fromCodePoint:function(){for(var t,e=o.call(arguments,0),r=[],n=0,i=e.length;i>n;n++){if(t=Number(e[n]),!Object.is(t,f.toInteger(t))||0>t||t>1114111)throw new RangeError("Invalid code point "+t);65536>t?r.push(String.fromCharCode(t)):(t-=65536,r.push(String.fromCharCode((t>>10)+55296)),r.push(String.fromCharCode(t%1024+56320)))}return r.join("")},raw:function(){var e=arguments[0],r=o.call(arguments,1),n=Object(e),i=n.raw,a=Object(i),u=Object.keys(a).length,s=f.ToUint32(u);if(0===s)return"";for(var c,h,l,p,g=[],y=0;s>y&&(c=String(y),h=a[c],l=String(h),g.push(l),!(y+1>=s))&&(h=r[c],h!==t);)p=String(h),g.push(p),y++;return g.join("")}}),c(String.prototype,{repeat:function(){var t=function(e,r){if(1>r)return"";if(r%2)return t(e,r-1)+e;var n=t(e,r/2);return n+n};return function(e){var r=String(f.CheckObjectCoercible(this));if(e=f.toInteger(e),0>e||1/0===e)throw new RangeError("Invalid String#repeat value");return t(r,e)}}(),startsWith:function(t){var e=String(f.CheckObjectCoercible(this));if("[object RegExp]"===u.call(t))throw new TypeError('Cannot call method "startsWith" with a regex');t=String(t);var r=Math.max(f.toInteger(arguments[1]),0);return e.slice(r,r+t.length)===t},endsWith:function(e){var r=String(f.CheckObjectCoercible(this));if("[object RegExp]"===u.call(e))throw new TypeError('Cannot call method "endsWith" with a regex');e=String(e);var n=r.length,i=arguments[1]===t?n:f.toInteger(arguments[1]),o=Math.min(Math.max(i,0),n);return r.slice(o-e.length,o)===e},contains:function(t){var e=arguments[1];return-1!==a.call(this,t,e)},codePointAt:function(e){var r=String(f.CheckObjectCoercible(this)),n=f.toInteger(e),i=r.length;if(0>n||n>=i)return t;var o=r.charCodeAt(n),a=n+1===i;if(55296>o||o>56319||a)return o;var u=r.charCodeAt(n+1);return 56320>u||u>57343?o:1024*(o-55296)+(u-56320)+65536}}),c(Array,{from:function(e){var r=arguments[1],n=arguments[2];if(r!==t&&"[object Function]"!==u.call(r))throw new TypeError("Array.from: when provided, the second argument must be a function");for(var i=Object(e),o=f.ToUint32(i.length),a="function"==typeof this?Object(new this(o)):new Array(o),s=0;o>s;s++){var c=i[s];a[s]=r!==t?n?r.call(n,c):r(c):c}return a.length=o,a},of:function(){return Array.from(arguments)}}),c(r,{ArrayIterator:function(t,e){this.i=0,this.array=t,this.kind=e}}),c(ArrayIterator.prototype,{next:function(){var t=this.i;this.i=t+1;var e=this.array;if(t>=e.length)throw new Error;if(e.hasOwnProperty(t)){var r,n=this.kind;"key"===n&&(r=t),"value"===n&&(r=e[t]),"entry"===n&&(r=[t,e[t]])}else r=this.next();return r}}),c(Array.prototype,{copyWithin:function(t,e){var r=Object(this),n=Math.max(f.toInteger(r.length),0),i=0>t?Math.max(n+t,0):Math.min(t,n),o=0>e?Math.max(n+e,0):Math.min(e,n),a=arguments.length>2?arguments[2]:n,u=0>a?Math.max(n+a,0):Math.min(a,n),c=Math.min(u-o,n-i),h=1;for(i>o&&o+c>i&&(h=-1,o+=c-1,i+=c-1);c>0;)s.call(r,o)?r[i]=r[o]:delete r[o],o+=h,i+=h,c-=1;return r},fill:function(t){for(var e=this.length,r=arguments.length>1?f.toInteger(arguments[1]):0,n=arguments.length>2?f.toInteger(arguments[2]):e,i=0>r?Math.max(e+r,0):Math.min(r,e),o=i;e>o&&n>o;++o)this[o]=t;return this},find:function(e){var r=Object(this),n=f.ToUint32(r.length);if(0===n)return t;if("function"!=typeof e)throw new TypeError("Array#find: predicate must be a function");for(var i,o=arguments[1],a=0;n>a&&a in r;a++)if(i=r[a],e.call(o,i,a,r))return i;return t},findIndex:function(t){var e=Object(this),r=f.ToUint32(e.length);if(0===r)return-1;if("function"!=typeof t)throw new TypeError("Array#findIndex: predicate must be a function");for(var n,i=arguments[1],o=0;r>o&&o in e;o++)if(n=e[o],t.call(i,n,o,e))return o;return-1},keys:function(){return new ArrayIterator(this,"key")},values:function(){return new ArrayIterator(this,"value")},entries:function(){return new ArrayIterator(this,"entry")}});var h=Math.pow(2,53)-1;if(c(Number,{MAX_SAFE_INTEGER:h,MIN_SAFE_INTEGER:-h,EPSILON:2.220446049250313e-16,parseInt:r.parseInt,parseFloat:r.parseFloat,isFinite:function(t){return"number"==typeof t&&n(t)},isSafeInteger:function(t){return"number"==typeof t&&!Number.isNaN(t)&&Number.isFinite(t)&&parseInt(t,10)===t&&Math.abs(t)<=Number.MAX_SAFE_INTEGER},isNaN:function(t){return t!==t}}),c(Number.prototype,{clz:function(){var t=+this;return t&&Number.isFinite(t)?(t=0>t?Math.ceil(t):Math.floor(t),t-=4294967296*Math.floor(t/4294967296),32-t.toString(2).length):32}}),i&&(c(Object,{getOwnPropertyDescriptors:function(t){var e={};return Object.getOwnPropertyNames(t).forEach(function(r){e[r]=Object.getOwnPropertyDescriptor(t,r)}),e},getPropertyDescriptor:function(e,r){for(var n=Object.getOwnPropertyDescriptor(e,r),i=Object.getPrototypeOf(e);n===t&&null!==i;)n=Object.getOwnPropertyDescriptor(i,r),i=Object.getPrototypeOf(i);return n},getPropertyNames:function(t){for(var e=Object.getOwnPropertyNames(t),r=Object.getPrototypeOf(t),n=function(t){-1===e.indexOf(t)&&e.push(t)};null!==r;)Object.getOwnPropertyNames(r).forEach(n),r=Object.getPrototypeOf(r);return e},assign:function(t,e){return Object.keys(e).reduce(function(t,r){return t[r]=e[r],t},t)},mixin:function(t,e){var r=Object.getOwnPropertyNames(e);return r.reduce(function(t,r){var n=Object.getOwnPropertyDescriptor(e,r);return Object.defineProperty(t,r,n)},t)}}),c(Object,{setPrototypeOf:function(t,e){var r,n=function(t,e){if("object"!=typeof t||null===t)throw new TypeError("cannot set prototype on a non-object");if("object"!=typeof e)throw new TypeError("can only set prototype to an object or null")},i=function(t,e){return n(t,e),r.call(t,e),t};try{r=t.getOwnPropertyDescriptor(t.prototype,e).set,r.call({},null)}catch(o){if(t.prototype!=={}[e])return;r=function(t){this[e]=t},i.polyfill=i(i({},null),t.prototype)instanceof t}return i}(Object,"__proto__")})),c(Object,{getOwnPropertyKeys:function(t){return Object.keys(t)},is:function(t,e){return t===e?0===t?1/t===1/e:!0:Number.isNaN(t)&&Number.isNaN(e)}}),c(Math,{acosh:function(t){return t=Number(t),Number.isNaN(t)||1>t?0/0:1===t?0:1/0===t?t:Math.log(t+Math.sqrt(t*t-1))},asinh:function(t){return t=Number(t),0!==t&&n(t)?Math.log(t+Math.sqrt(t*t+1)):t},atanh:function(t){return t=Number(t),Number.isNaN(t)||-1>t||t>1?0/0:-1===t?-1/0:1===t?1/0:0===t?t:.5*Math.log((1+t)/(1-t))},cbrt:function(t){if(t=Number(t),0===t)return t;var e,r=0>t;return r&&(t=-t),e=Math.pow(t,1/3),r?-e:e},cosh:function(t){return t=Number(t),0===t?1:n(t)?(0>t&&(t=-t),t>21?Math.exp(t)/2:(Math.exp(t)+Math.exp(-t))/2):t},expm1:function(t){if(t=Number(t),t===-1/0)return-1;if(!n(t)||0===t)return t;for(var e=0,r=50,i=1;r>i;i++){for(var o=2,a=1;i>=o;o++)a*=o;e+=Math.pow(t,i)/a}return e},hypot:function(){var t=!1,e=!0,r=!1,n=[];if(Array.prototype.every.call(arguments,function(i){var o=Number(i);return 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r=t>>>16&65535,n=65535&t,i=e>>>16&65535,o=65535&e;return n*o+(r*o+n*i<<16>>>0)|0}}),i){var l=function(t){var e=typeof t;return"string"===e?"$"+t:"number"!==e||Object.is(t,-0)?null:t},p=function(){return Object.create?Object.create(null):{}},g={Map:function(){function e(t,e){this.key=t,this.value=e,this.next=null,this.prev=null}function r(t,e){this.head=t._head,this.i=this.head.next,this.kind=e}function n(){if(!(this instanceof n))throw new TypeError('Map must be called with "new"');var t=new e(null,null);t.next=t.prev=t,c(this,{_head:t,_storage:p(),_size:0})}var i={};return e.prototype.isRemoved=function(){return this.key===i},r.prototype={next:function(){for(var e,r=this.i,n=this.kind,i=this.head;r!==i;){if(this.i=r.next,!r.isRemoved())return e="key"===n?r.key:"value"===n?r.value:[r.key,r.value],{value:e,done:!1};r=this.i}return{value:t,done:!0}}},Object.defineProperty(n.prototype,"size",{configurable:!0,enumerable:!1,get:function(){return 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r.key=r.value=i,r.prev.next=r.next,r.next.prev=r.prev,this._size-=1,!0;return!1},clear:function(){this._size=0,this._storage=p();for(var t=this._head,e=t,r=e.next;(e=r)!==t;)e.key=e.value=i,r=e.next,e.next=e.prev=t;t.next=t.prev=t},keys:function(){return new r(this,"key")},values:function(){return new r(this,"value")},entries:function(){return new r(this,"key+value")},forEach:function(t){for(var e=arguments.length>1?arguments[1]:null,r=this,n=this._head,i=n;(i=i.next)!==n;)i.isRemoved()||t.call(e,i.value,i.key,r)}}),n}(),Set:function(){var t=function(){if(!(this instanceof t))throw new TypeError('Set must be called with "new"');c(this,{"[[SetData]]":null,_storage:p()})},e=function(t){if(!t["[[SetData]]"]){var e=t["[[SetData]]"]=new g.Map;Object.keys(t._storage).forEach(function(t){t=36===t.charCodeAt(0)?t.substring(1):+t,e.set(t,t)}),t._storage=null}};return Object.defineProperty(t.prototype,"size",{configurable:!0,enumerable:!1,get:function(){return e(this),this["[[SetData]]"].size}}),c(t.prototype,{has:function(t){var r;return this._storage&&null!==(r=l(t))?!!this._storage[r]:(e(this),this["[[SetData]]"].has(t))},add:function(t){var r;return this._storage&&null!==(r=l(t))?void(this._storage[r]=!0):(e(this),this["[[SetData]]"].set(t,t))},"delete":function(t){var r;return this._storage&&null!==(r=l(t))?void delete this._storage[r]:(e(this),this["[[SetData]]"]["delete"](t))},clear:function(){return this._storage?void(this._storage=p()):this["[[SetData]]"].clear()},keys:function(){return e(this),this["[[SetData]]"].keys()},values:function(){return e(this),this["[[SetData]]"].values()},entries:function(){return e(this),this["[[SetData]]"].entries()},forEach:function(t){var r=arguments.length>1?arguments[1]:null,n=this;e(this),this["[[SetData]]"].forEach(function(e,i){t.call(r,i,i,n)})}}),t}()};c(r,g),(r.Map||r.Set)&&("function"!=typeof r.Map.prototype.clear||0!==(new r.Set).size||0!==(new r.Map).size||"function"!=typeof 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\ No newline at end of file
diff --git a/ajax/libs/es6-shim/0.9.3/es6-shim.js b/ajax/libs/es6-shim/0.9.3/es6-shim.js
new file mode 100644
index 000000000..22b55555e
--- /dev/null
+++ b/ajax/libs/es6-shim/0.9.3/es6-shim.js
@@ -0,0 +1,1277 @@
+// ES6-shim 0.9.3 (c) 2013-2014 Paul Miller (http://paulmillr.com)
+// ES6-shim may be freely distributed under the MIT license.
+// For more details and documentation:
+// https://github.com/paulmillr/es6-shim/
+
+(function(undefined) {
+  'use strict';
+
+  var isCallableWithoutNew = function(func) {
+    try { func(); }
+    catch (e) { return false; }
+    return true;
+  };
+
+  var arePropertyDescriptorsSupported = function() {
+    try {
+      Object.defineProperty({}, 'x', {});
+      return true;
+    } catch (e) { /* this is IE 8. */
+      return false;
+    }
+  };
+
+  var startsWithRejectsRegex = function() {
+    var rejectsRegex = false;
+    if (String.prototype.startsWith) {
+      try {
+        '/a/'.startsWith(/a/);
+      } catch (e) { /* this is spec compliant */
+        rejectsRegex = true;
+      }
+    }
+    return rejectsRegex;
+  };
+
+  var main = function() {
+    var globals = (typeof global === 'undefined') ? window : global;
+    var global_isFinite = globals.isFinite;
+    var supportsDescriptors = !!Object.defineProperty && arePropertyDescriptorsSupported();
+    var startsWithIsCompliant = startsWithRejectsRegex();
+    var _slice = Array.prototype.slice;
+    var _indexOf = String.prototype.indexOf;
+    var _toString = Object.prototype.toString;
+    var _hasOwnProperty = Object.prototype.hasOwnProperty;
+
+    // Define configurable, writable and non-enumerable props
+    // if they don’t exist.
+    var defineProperties = function(object, map) {
+      Object.keys(map).forEach(function(name) {
+        var method = map[name];
+        if (name in object) return;
+        if (supportsDescriptors) {
+          Object.defineProperty(object, name, {
+            configurable: true,
+            enumerable: false,
+            writable: true,
+            value: method
+          });
+        } else {
+          object[name] = method;
+        }
+      });
+    };
+
+    // This is a private name in the es6 spec, equal to '[Symbol.iterator]'
+    // we're going to use an arbitrary _-prefixed name to make our shims
+    // work properly with each other, even though we don't have full Iterator
+    // support.  That is, `Array.from(map.keys())` will work, but we don't
+    // pretend to export a "real" Iterator interface.
+    var $iterator$ = (typeof Symbol === 'object' && Symbol['iterator']) ||
+      '_es6shim_iterator_';
+    // Firefox ships a partial implementation using the name @@iterator.
+    // https://bugzilla.mozilla.org/show_bug.cgi?id=907077#c14
+    // So use that name if we detect it.
+    if (globals.Set && typeof new globals.Set()['@@iterator'] === 'function') {
+      $iterator$ = '@@iterator';
+    }
+    var addIterator = function(prototype, impl) {
+      if (!impl) { impl = function iterator() { return this; }; }
+      var o = {};
+      o[$iterator$] = impl;
+      defineProperties(prototype, o);
+    };
+
+    var ES = {
+      CheckObjectCoercible: function(x) {
+        if (x == null) throw TypeError('Cannot call method on ' + x);
+        return x;
+      },
+
+      ToInt32: function(x) {
+        return x >> 0;
+      },
+
+      ToUint32: function(x) {
+        return x >>> 0;
+      },
+
+      toInteger: function(value) {
+        var number = +value;
+        if (Number.isNaN(number)) return 0;
+        if (number === 0 || !Number.isFinite(number)) return number;
+        return Math.sign(number) * Math.floor(Math.abs(number));
+      },
+
+      SameValue: function(a, b) {
+        if (a === b) {
+          // 0 === -0, but they are not identical.
+          if (a === 0) return 1 / a === 1 / b;
+          return true;
+        }
+        return Number.isNaN(a) && Number.isNaN(b);
+      },
+
+      SameValueZero: function(a, b) {
+        // same as SameValue except for SameValueZero(+0, -0) == true
+        return (a === b) || (Number.isNaN(a) && Number.isNaN(b));
+      }
+    };
+
+    var numberConversion = (function () {
+      // from https://github.com/inexorabletash/polyfill/blob/master/typedarray.js#L176-L266
+      // with permission and license, per https://twitter.com/inexorabletash/status/372206509540659200
+
+      function roundToEven(n) {
+        var w = Math.floor(n), f = n - w;
+        if (f < 0.5) {
+          return w;
+        }
+        if (f > 0.5) {
+          return w + 1;
+        }
+        return w % 2 ? w + 1 : w;
+      }
+
+      function packIEEE754(v, ebits, fbits) {
+        var bias = (1 << (ebits - 1)) - 1,
+          s, e, f, ln,
+          i, bits, str, bytes;
+
+        // Compute sign, exponent, fraction
+        if (v !== v) {
+          // NaN
+          // http://dev.w3.org/2006/webapi/WebIDL/#es-type-mapping
+          e = (1 << ebits) - 1;
+          f = Math.pow(2, fbits - 1);
+          s = 0;
+        } else if (v === Infinity || v === -Infinity) {
+          e = (1 << ebits) - 1;
+          f = 0;
+          s = (v < 0) ? 1 : 0;
+        } else if (v === 0) {
+          e = 0;
+          f = 0;
+          s = (1 / v === -Infinity) ? 1 : 0;
+        } else {
+          s = v < 0;
+          v = Math.abs(v);
+
+          if (v >= Math.pow(2, 1 - bias)) {
+            e = Math.min(Math.floor(Math.log(v) / Math.LN2), 1023);
+            f = roundToEven(v / Math.pow(2, e) * Math.pow(2, fbits));
+            if (f / Math.pow(2, fbits) >= 2) {
+              e = e + 1;
+              f = 1;
+            }
+            if (e > bias) {
+              // Overflow
+              e = (1 << ebits) - 1;
+              f = 0;
+            } else {
+              // Normal
+              e = e + bias;
+              f = f - Math.pow(2, fbits);
+            }
+          } else {
+            // Subnormal
+            e = 0;
+            f = roundToEven(v / Math.pow(2, 1 - bias - fbits));
+          }
+        }
+
+        // Pack sign, exponent, fraction
+        bits = [];
+        for (i = fbits; i; i -= 1) {
+          bits.push(f % 2 ? 1 : 0);
+          f = Math.floor(f / 2);
+        }
+        for (i = ebits; i; i -= 1) {
+          bits.push(e % 2 ? 1 : 0);
+          e = Math.floor(e / 2);
+        }
+        bits.push(s ? 1 : 0);
+        bits.reverse();
+        str = bits.join('');
+
+        // Bits to bytes
+        bytes = [];
+        while (str.length) {
+          bytes.push(parseInt(str.substring(0, 8), 2));
+          str = str.substring(8);
+        }
+        return bytes;
+      }
+
+      function unpackIEEE754(bytes, ebits, fbits) {
+        // Bytes to bits
+        var bits = [], i, j, b, str,
+            bias, s, e, f;
+
+        for (i = bytes.length; i; i -= 1) {
+          b = bytes[i - 1];
+          for (j = 8; j; j -= 1) {
+            bits.push(b % 2 ? 1 : 0);
+            b = b >> 1;
+          }
+        }
+        bits.reverse();
+        str = bits.join('');
+
+        // Unpack sign, exponent, fraction
+        bias = (1 << (ebits - 1)) - 1;
+        s = parseInt(str.substring(0, 1), 2) ? -1 : 1;
+        e = parseInt(str.substring(1, 1 + ebits), 2);
+        f = parseInt(str.substring(1 + ebits), 2);
+
+        // Produce number
+        if (e === (1 << ebits) - 1) {
+          return f !== 0 ? NaN : s * Infinity;
+        } else if (e > 0) {
+          // Normalized
+          return s * Math.pow(2, e - bias) * (1 + f / Math.pow(2, fbits));
+        } else if (f !== 0) {
+          // Denormalized
+          return s * Math.pow(2, -(bias - 1)) * (f / Math.pow(2, fbits));
+        } else {
+          return s < 0 ? -0 : 0;
+        }
+      }
+
+      function unpackFloat64(b) { return unpackIEEE754(b, 11, 52); }
+      function packFloat64(v) { return packIEEE754(v, 11, 52); }
+      function unpackFloat32(b) { return unpackIEEE754(b, 8, 23); }
+      function packFloat32(v) { return packIEEE754(v, 8, 23); }
+
+      var conversions = {
+        toFloat32: function (num) { return unpackFloat32(packFloat32(num)); }
+      };
+      if (typeof Float32Array !== 'undefined') {
+        var float32array = new Float32Array(1);
+        conversions.toFloat32 = function (num) {
+          float32array[0] = num;
+          return float32array[0];
+        };
+      }
+      return conversions;
+    }());
+
+    defineProperties(String, {
+      fromCodePoint: function() {
+        var points = _slice.call(arguments, 0, arguments.length);
+        var result = [];
+        var next;
+        for (var i = 0, length = points.length; i < length; i++) {
+          next = Number(points[i]);
+          if (!ES.SameValue(next, ES.toInteger(next)) ||
+              next < 0 || next > 0x10FFFF) {
+            throw new RangeError('Invalid code point ' + next);
+          }
+
+          if (next < 0x10000) {
+            result.push(String.fromCharCode(next));
+          } else {
+            next -= 0x10000;
+            result.push(String.fromCharCode((next >> 10) + 0xD800));
+            result.push(String.fromCharCode((next % 0x400) + 0xDC00));
+          }
+        }
+        return result.join('');
+      },
+
+      raw: function() {
+        var callSite = arguments.length > 0 ? arguments[0] : undefined;
+        var substitutions = _slice.call(arguments, 1, arguments.length);
+        var cooked = Object(callSite);
+        var rawValue = cooked.raw;
+        var raw = Object(rawValue);
+        var len = Object.keys(raw).length;
+        var literalsegments = ES.ToUint32(len);
+        if (literalsegments === 0) {
+          return '';
+        }
+
+        var stringElements = [];
+        var nextIndex = 0;
+        var nextKey, next, nextSeg, nextSub;
+        while (nextIndex < literalsegments) {
+          nextKey = String(nextIndex);
+          next = raw[nextKey];
+          nextSeg = String(next);
+          stringElements.push(nextSeg);
+          if (nextIndex + 1 >= literalsegments) {
+            break;
+          }
+          next = substitutions[nextKey];
+          if (next === undefined) {
+            break;
+          }
+          nextSub = String(next);
+          stringElements.push(nextSub);
+          nextIndex++;
+        }
+        return stringElements.join('');
+      }
+    });
+
+    var StringShims = {
+      // Fast repeat, uses the `Exponentiation by squaring` algorithm.
+      // Perf: http://jsperf.com/string-repeat2/2
+      repeat: (function() {
+        var repeat = function(s, times) {
+          if (times < 1) return '';
+          if (times % 2) return repeat(s, times - 1) + s;
+          var half = repeat(s, times / 2);
+          return half + half;
+        };
+
+        return function(times) {
+          var thisStr = String(ES.CheckObjectCoercible(this));
+          times = ES.toInteger(times);
+          if (times < 0 || times === Infinity) {
+            throw new RangeError('Invalid String#repeat value');
+          }
+          return repeat(thisStr, times);
+        };
+      })(),
+
+      startsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "startsWith" with a regex');
+        searchStr = String(searchStr);
+        var startArg = arguments.length > 1 ? arguments[1] : undefined;
+        var start = Math.max(ES.toInteger(startArg), 0);
+        return thisStr.slice(start, start + searchStr.length) === searchStr;
+      },
+
+      endsWith: function(searchStr) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        if (_toString.call(searchStr) === '[object RegExp]') throw new TypeError('Cannot call method "endsWith" with a regex');
+        searchStr = String(searchStr);
+        var thisLen = thisStr.length;
+        var posArg = arguments.length > 1 ? arguments[1] : undefined;
+        var pos = posArg === undefined ? thisLen : ES.toInteger(posArg);
+        var end = Math.min(Math.max(pos, 0), thisLen);
+        return thisStr.slice(end - searchStr.length, end) === searchStr;
+      },
+
+      contains: function(searchString) {
+        var position = arguments.length > 1 ? arguments[1] : undefined;
+        // Somehow this trick makes method 100% compat with the spec.
+        return _indexOf.call(this, searchString, position) !== -1;
+      },
+
+      codePointAt: function(pos) {
+        var thisStr = String(ES.CheckObjectCoercible(this));
+        var position = ES.toInteger(pos);
+        var length = thisStr.length;
+        if (position < 0 || position >= length) return undefined;
+        var first = thisStr.charCodeAt(position);
+        var isEnd = (position + 1 === length);
+        if (first < 0xD800 || first > 0xDBFF || isEnd) return first;
+        var second = thisStr.charCodeAt(position + 1);
+        if (second < 0xDC00 || second > 0xDFFF) return first;
+        return ((first - 0xD800) * 1024) + (second - 0xDC00) + 0x10000;
+      }
+    };
+    defineProperties(String.prototype, StringShims);
+
+    // see https://people.mozilla.org/~jorendorff/es6-draft.html#sec-string.prototype-@@iterator
+    var StringIterator = function(s) {
+      if (s==null) { throw new TypeError('StringIterator: given null'); }
+      this._s = String(s);
+      this._i = 0;
+    };
+    StringIterator.prototype.next = function() {
+      var s = this._s, i = this._i;
+      if (s===undefined || i >= s.length) {
+        this._s = undefined;
+        return { value: undefined, done: true };
+      }
+      var first = s.charCodeAt(i), second, len;
+      if (first < 0xD800 || first > 0xDBFF || (i+1) == s.length) {
+        len = 1;
+      } else {
+        second = s.charCodeAt(i+1);
+        len = (second < 0xDC00 || second > 0xDFFF) ? 1 : 2;
+      }
+      this._i = i + len;
+      return { value: s.substr(i, len), done: false };
+    };
+    addIterator(StringIterator.prototype);
+    addIterator(String.prototype, function() {
+      return new StringIterator(this);
+    });
+
+    if (!startsWithIsCompliant) {
+      // Firefox has a noncompliant startsWith implementation
+      String.prototype.startsWith = StringShims.startsWith;
+      String.prototype.endsWith = StringShims.endsWith;
+    }
+
+    defineProperties(Array, {
+      from: function(iterable) {
+        var mapFn = arguments.length > 1 ? arguments[1] : undefined;
+        var thisArg = arguments.length > 2 ? arguments[2] : undefined;
+
+        if (iterable === null || iterable === undefined) {
+          throw new TypeError('Array.from: null or undefined are not valid values. Use []');
+        } else if (mapFn !== undefined && _toString.call(mapFn) !== '[object Function]') {
+          throw new TypeError('Array.from: when provided, the second argument must be a function');
+        }
+
+        var list = Object(iterable);
+        var usingIterator = ($iterator$ in list);
+        // does the spec really mean that Arrays should use ArrayIterator?
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2416
+        //if (Array.isArray(list)) { usingIterator=false; }
+        var length = usingIterator ? 0 : ES.ToUint32(list.length);
+        var result = typeof this === 'function' ? Object(usingIterator ? new this() : new this(length)) : new Array(length);
+        var it = usingIterator ? list[$iterator$]() : null;
+        var value;
+
+        for (var i = 0; usingIterator || (i < length); i++) {
+          if (usingIterator) {
+            value = it.next();
+            if (value == null || typeof value !== 'object') {
+              throw new TypeError("Bad iterator");
+            }
+            if (value.done) {
+              length = i;
+              break;
+            }
+            value = value.value;
+          } else {
+            value = list[i];
+          }
+          if (mapFn !== undefined) {
+            result[i] = thisArg ? mapFn.call(thisArg, value) : mapFn(value);
+          } else {
+            result[i] = value;
+          }
+        }
+
+        result.length = length;
+        return result;
+      },
+
+      of: function() {
+        return Array.from(arguments);
+      }
+    });
+
+    defineProperties(globals, {
+      ArrayIterator: function(array, kind) {
+        this.i = 0;
+        this.array = array;
+        this.kind = kind;
+      }
+    });
+
+    defineProperties(ArrayIterator.prototype, {
+      next: function() {
+        var i = this.i, array = this.array;
+        if (i===undefined || this.kind===undefined) {
+          throw new TypeError('Not an ArrayIterator');
+        }
+        if (array!==undefined) {
+          for (; i < array.length; i++) {
+            var kind = this.kind;
+            var retval;
+            if (kind === "key") {
+              retval = i;
+            }
+            if (kind === "value") {
+              retval = array[i];
+            }
+            if (kind === "entry") {
+              retval = [i, array[i]];
+            }
+            this.i = i + 1;
+            return { value: retval, done: false };
+          }
+        }
+        this.array = undefined;
+        return { value: undefined, done: true };
+      }
+    });
+    addIterator(ArrayIterator.prototype);
+
+    defineProperties(Array.prototype, {
+      copyWithin: function(target, start) {
+        var o = Object(this);
+        var len = Math.max(ES.toInteger(o.length), 0);
+        var to = target < 0 ? Math.max(len + target, 0) : Math.min(target, len);
+        var from = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+        var end = arguments.length > 2 ? arguments[2] : len;
+        var final = end < 0 ? Math.max(len + end, 0) : Math.min(end, len);
+        var count = Math.min(final - from, len - to);
+        var direction = 1;
+        if (from < to && to < (from + count)) {
+          direction = -1;
+          from += count - 1;
+          to += count - 1;
+        }
+        while (count > 0) {
+          if (_hasOwnProperty.call(o, from)) {
+            o[to] = o[from];
+          } else {
+            delete o[from];
+          }
+          from += direction;
+          to += direction;
+          count -= 1;
+        }
+        return o;
+      },
+      fill: function(value) {
+        var len = this.length;
+        var start = arguments.length > 1 ? ES.toInteger(arguments[1]) : 0;
+        var end = arguments.length > 2 ? ES.toInteger(arguments[2]) : len;
+
+        var relativeStart = start < 0 ? Math.max(len + start, 0) : Math.min(start, len);
+
+        for (var i = relativeStart; i < len && i < end; ++i) {
+          this[i] = value;
+        }
+        return this;
+      },
+
+      find: function(predicate) {
+        var list = Object(this);
+        var length = ES.ToUint32(list.length);
+        if (length === 0) return undefined;
+        if (typeof predicate !== 'function') {
+          throw new TypeError('Array#find: predicate must be a function');
+        }
+        var thisArg = arguments.length > 1 ? arguments[1] : undefined;
+        for (var i = 0, value; i < length && i in list; i++) {
+          value = list[i];
+          if (predicate.call(thisArg, value, i, list)) return value;
+        }
+        return undefined;
+      },
+
+      findIndex: function(predicate) {
+        var list = Object(this);
+        var length = ES.ToUint32(list.length);
+        if (length === 0) return -1;
+        if (typeof predicate !== 'function') {
+          throw new TypeError('Array#findIndex: predicate must be a function');
+        }
+        var thisArg = arguments.length > 1 ? arguments[1] : undefined;
+        for (var i = 0; i < length && i in list; i++) {
+          if (predicate.call(thisArg, list[i], i, list)) return i;
+        }
+        return -1;
+      },
+
+      keys: function() {
+        return new ArrayIterator(this, "key");
+      },
+
+      values: function() {
+        return new ArrayIterator(this, "value");
+      },
+
+      entries: function() {
+        return new ArrayIterator(this, "entry");
+      }
+    });
+    addIterator(Array.prototype, function() { return this.values(); });
+    // Chrome defines keys/values/entries on Array, but doesn't give us
+    // any way to identify its iterator.  So add our own shimmed field.
+    addIterator(Object.getPrototypeOf([].values()));
+
+    var maxSafeInteger = Math.pow(2, 53) - 1;
+    defineProperties(Number, {
+      MAX_SAFE_INTEGER: maxSafeInteger,
+      MIN_SAFE_INTEGER: -maxSafeInteger,
+      EPSILON: 2.220446049250313e-16,
+
+      parseInt: globals.parseInt,
+      parseFloat: globals.parseFloat,
+
+      isFinite: function(value) {
+        return typeof value === 'number' && global_isFinite(value);
+      },
+
+      isSafeInteger: function(value) {
+        return typeof value === 'number' &&
+          !Number.isNaN(value) &&
+          Number.isFinite(value) &&
+          parseInt(value, 10) === value &&
+          Math.abs(value) <= Number.MAX_SAFE_INTEGER;
+      },
+
+      isNaN: function(value) {
+        // NaN !== NaN, but they are identical.
+        // NaNs are the only non-reflexive value, i.e., if x !== x,
+        // then x is NaN.
+        // isNaN is broken: it converts its argument to number, so
+        // isNaN('foo') => true
+        return value !== value;
+      },
+
+    });
+
+    defineProperties(Number.prototype, {
+      clz: function() {
+        var number = Number.prototype.valueOf.call(this) >>> 0;
+        if (number === 0) {
+          return 32;
+        }
+        return 32 - (number).toString(2).length;
+      }
+    });
+
+    if (supportsDescriptors) {
+      defineProperties(Object, {
+        getOwnPropertyDescriptors: function(subject) {
+          var descs = {};
+          Object.getOwnPropertyNames(subject).forEach(function(propName) {
+            descs[propName] = Object.getOwnPropertyDescriptor(subject, propName);
+          });
+          return descs;
+        },
+
+        getPropertyDescriptor: function(subject, name) {
+          var pd = Object.getOwnPropertyDescriptor(subject, name);
+          var proto = Object.getPrototypeOf(subject);
+          while (pd === undefined && proto !== null) {
+            pd = Object.getOwnPropertyDescriptor(proto, name);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return pd;
+        },
+
+        getPropertyNames: function(subject) {
+          var result = Object.getOwnPropertyNames(subject);
+          var proto = Object.getPrototypeOf(subject);
+
+          var addProperty = function(property) {
+            if (result.indexOf(property) === -1) {
+              result.push(property);
+            }
+          };
+
+          while (proto !== null) {
+            Object.getOwnPropertyNames(proto).forEach(addProperty);
+            proto = Object.getPrototypeOf(proto);
+          }
+          return result;
+        },
+
+        // 19.1.3.1
+        assign: function(target, source) {
+          return Object.keys(source).reduce(function(target, key) {
+            target[key] = source[key];
+            return target;
+          }, target);
+        }
+      });
+
+      // 19.1.3.9
+      // shim from https://gist.github.com/WebReflection/5593554
+      defineProperties(Object, {
+        setPrototypeOf: (function(Object, magic) {
+          var set;
+
+          var checkArgs = function(O, proto) {
+            if (typeof O !== 'object' || O === null) {
+              throw new TypeError('cannot set prototype on a non-object');
+            }
+            if (typeof proto !== 'object') {
+              throw new TypeError('can only set prototype to an object or null');
+            }
+          };
+
+          var setPrototypeOf = function(O, proto) {
+            checkArgs(O, proto);
+            set.call(O, proto);
+            return O;
+          };
+
+          try {
+            // this works already in Firefox and Safari
+            set = Object.getOwnPropertyDescriptor(Object.prototype, magic).set;
+            set.call({}, null);
+          } catch (e) {
+            if (Object.prototype !== {}[magic]) {
+              // IE < 11 cannot be shimmed
+              return;
+            }
+            // probably Chrome or some old Mobile stock browser
+            set = function(proto) {
+              this[magic] = proto;
+            };
+            // please note that this will **not** work
+            // in those browsers that do not inherit
+            // __proto__ by mistake from Object.prototype
+            // in these cases we should probably throw an error
+            // or at least be informed about the issue
+            setPrototypeOf.polyfill = setPrototypeOf(
+              setPrototypeOf({}, null),
+              Object.prototype
+            ) instanceof Object;
+            // setPrototypeOf.polyfill === true means it works as meant
+            // setPrototypeOf.polyfill === false means it's not 100% reliable
+            // setPrototypeOf.polyfill === undefined
+            // or
+            // setPrototypeOf.polyfill ==  null means it's not a polyfill
+            // which means it works as expected
+            // we can even delete Object.prototype.__proto__;
+          }
+          return setPrototypeOf;
+        })(Object, '__proto__')
+      });
+    }
+
+    defineProperties(Object, {
+      getOwnPropertyKeys: function(subject) {
+        return Object.keys(subject);
+      },
+
+      is: function(a, b) {
+        return ES.SameValue(a, b);
+      }
+    });
+
+    var MathShims = {
+      acosh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < 1) return NaN;
+        if (value === 1) return 0;
+        if (value === Infinity) return value;
+        return Math.log(value + Math.sqrt(value * value - 1));
+      },
+
+      asinh: function(value) {
+        value = Number(value);
+        if (value === 0 || !global_isFinite(value)) {
+          return value;
+        }
+        return value < 0 ? -Math.asinh(-value) : Math.log(value + Math.sqrt(value * value + 1));
+      },
+
+      atanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value < -1 || value > 1) {
+          return NaN;
+        }
+        if (value === -1) return -Infinity;
+        if (value === 1) return Infinity;
+        if (value === 0) return value;
+        return 0.5 * Math.log((1 + value) / (1 - value));
+      },
+
+      cbrt: function(value) {
+        value = Number(value);
+        if (value === 0) return value;
+        var negate = value < 0, result;
+        if (negate) value = -value;
+        result = Math.pow(value, 1/3);
+        return negate ? -result : result;
+      },
+
+      cosh: function(value) {
+        value = Number(value);
+        if (value === 0) return 1; // +0 or -0
+        if (Number.isNaN(value)) return NaN;
+        if (!global_isFinite(value)) return Infinity;
+        if (value < 0) value = -value;
+        if (value > 21) return Math.exp(value) / 2;
+        return (Math.exp(value) + Math.exp(-value)) / 2;
+      },
+
+      expm1: function(value) {
+        value = Number(value);
+        if (value === -Infinity) return -1;
+        if (!global_isFinite(value) || value === 0) return value;
+        var result = 0;
+        var n = 50;
+        for (var i = 1; i < n; i++) {
+          for (var j = 2, factorial = 1; j <= i; j++) {
+            factorial *= j;
+          }
+          result += Math.pow(value, i) / factorial;
+        }
+        return result;
+      },
+
+      hypot: function(x, y) {
+        var anyNaN = false;
+        var allZero = true;
+        var anyInfinity = false;
+        var numbers = [];
+        Array.prototype.every.call(arguments, function(arg) {
+          var num = Number(arg);
+          if (Number.isNaN(num)) anyNaN = true;
+          else if (num === Infinity || num === -Infinity) anyInfinity = true;
+          else if (num !== 0) allZero = false;
+          if (anyInfinity) {
+            return false;
+          } else if (!anyNaN) {
+            numbers.push(Math.abs(num));
+          }
+          return true;
+        });
+        if (anyInfinity) return Infinity;
+        if (anyNaN) return NaN;
+        if (allZero) return 0;
+
+        numbers.sort(function (a, b) { return b - a; });
+        var largest = numbers[0];
+        var divided = numbers.map(function (number) { return number / largest; });
+        var sum = divided.reduce(function (sum, number) { return sum += number * number; }, 0);
+        return largest * Math.sqrt(sum);
+      },
+
+      log2: function(value) {
+        return Math.log(value) * Math.LOG2E;
+      },
+
+      log10: function(value) {
+        return Math.log(value) * Math.LOG10E;
+      },
+
+      log1p: function(value) {
+        value = Number(value);
+        if (value < -1 || Number.isNaN(value)) return NaN;
+        if (value === 0 || value === Infinity) return value;
+        if (value === -1) return -Infinity;
+        var result = 0;
+        var n = 50;
+
+        if (value < 0 || value > 1) return Math.log(1 + value);
+        for (var i = 1; i < n; i++) {
+          if ((i % 2) === 0) {
+            result -= Math.pow(value, i) / i;
+          } else {
+            result += Math.pow(value, i) / i;
+          }
+        }
+
+        return result;
+      },
+
+      sign: function(value) {
+        var number = +value;
+        if (number === 0) return number;
+        if (Number.isNaN(number)) return number;
+        return number < 0 ? -1 : 1;
+      },
+
+      sinh: function(value) {
+        value = Number(value);
+        if (!global_isFinite(value) || value === 0) return value;
+        return (Math.exp(value) - Math.exp(-value)) / 2;
+      },
+
+      tanh: function(value) {
+        value = Number(value);
+        if (Number.isNaN(value) || value === 0) return value;
+        if (value === Infinity) return 1;
+        if (value === -Infinity) return -1;
+        return (Math.exp(value) - Math.exp(-value)) / (Math.exp(value) + Math.exp(-value));
+      },
+
+      trunc: function(value) {
+        var number = Number(value);
+        return number < 0 ? -Math.floor(-number) : Math.floor(number);
+      },
+
+      imul: function(x, y) {
+        // taken from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
+        var ah  = (x >>> 16) & 0xffff;
+        var al = x & 0xffff;
+        var bh  = (y >>> 16) & 0xffff;
+        var bl = y & 0xffff;
+        // the shift by 0 fixes the sign on the high part
+        // the final |0 converts the unsigned value into a signed value
+        return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);
+      },
+
+      fround: function(x) {
+        if (x === 0 || x === Infinity || x === -Infinity || Number.isNaN(x)) {
+          return x;
+        }
+        var num = Number(x);
+        return numberConversion.toFloat32(num);
+      }
+    };
+    defineProperties(Math, MathShims);
+
+    if (Math.imul(0xffffffff, 5) !== -5) {
+      // Safari 6.1, at least, reports "0" for this value
+      Math.imul = MathShims.imul;
+    }
+
+    // Map and Set require a true ES5 environment
+    if (supportsDescriptors) {
+
+      var fastkey = function fastkey(key) {
+        var type = typeof key;
+        if (type === 'string') {
+          return '$' + key;
+        } else if (type === 'number') {
+          // note that -0 will get coerced to "0" when used as a property key
+          return key;
+        }
+        return null;
+      };
+
+      var emptyObject = function emptyObject() {
+        // accomodate some older not-quite-ES5 browsers
+        return Object.create ? Object.create(null) : {};
+      };
+
+      var collectionShims = {
+        Map: (function() {
+
+          var empty = {};
+
+          function MapEntry(key, value) {
+            this.key = key;
+            this.value = value;
+            this.next = null;
+            this.prev = null;
+          }
+
+          MapEntry.prototype.isRemoved = function() {
+            return this.key === empty;
+          };
+
+          function MapIterator(map, kind) {
+            this.head = map._head;
+            this.i = this.head;
+            this.kind = kind;
+          }
+
+          MapIterator.prototype = {
+            next: function() {
+              var i = this.i, kind = this.kind, head = this.head, result;
+              if (this.i === undefined) {
+                return { value: undefined, done: true };
+              }
+              while (i.isRemoved() && i !== head) {
+                // back up off of removed entries
+                i = i.prev;
+              }
+              // advance to next unreturned element.
+              while (i.next !== head) {
+                i = i.next;
+                if (!i.isRemoved()) {
+                  if (kind === "key") {
+                    result = i.key;
+                  } else if (kind === "value") {
+                    result = i.value;
+                  } else {
+                    result = [i.key, i.value];
+                  }
+                  this.i = i;
+                  return { value: result, done: false };
+                }
+              }
+              // once the iterator is done, it is done forever.
+              this.i = undefined;
+              return { value: undefined, done: true };
+            }
+          };
+          addIterator(MapIterator.prototype);
+
+          function Map() {
+            if (!(this instanceof Map)) throw new TypeError('Map must be called with "new"');
+
+            var head = new MapEntry(null, null);
+            // circular doubly-linked list.
+            head.next = head.prev = head;
+
+            defineProperties(this, {
+              '_head': head,
+              '_storage': emptyObject(),
+              '_size': 0
+            });
+          }
+
+          Object.defineProperty(Map.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._size === 'undefined') {
+                throw new TypeError('size method called on incompatible Map');
+              }
+              return this._size;
+            }
+          });
+
+          defineProperties(Map.prototype, {
+            get: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                var entry = this._storage[fkey];
+                return entry ? entry.value : undefined;
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return i.value;
+                }
+              }
+              return undefined;
+            },
+
+            has: function(key) {
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                return typeof this._storage[fkey] !== 'undefined';
+              }
+              var head = this._head, i = head;
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            set: function(key, value) {
+              var head = this._head, i = head, entry;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] !== 'undefined') {
+                  this._storage[fkey].value = value;
+                  return;
+                } else {
+                  entry = this._storage[fkey] = new MapEntry(key, value);
+                  i = head.prev;
+                  // fall through
+                }
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.value = value;
+                  return;
+                }
+              }
+              entry = entry || new MapEntry(key, value);
+              if (ES.SameValue(-0, key)) {
+                entry.key = +0; // coerce -0 to +0 in entry
+              }
+              entry.next = this._head;
+              entry.prev = this._head.prev;
+              entry.prev.next = entry;
+              entry.next.prev = entry;
+              this._size += 1;
+            },
+
+            'delete': function(key) {
+              var head = this._head, i = head;
+              var fkey = fastkey(key);
+              if (fkey !== null) {
+                // fast O(1) path
+                if (typeof this._storage[fkey] === 'undefined') {
+                  return false;
+                }
+                i = this._storage[fkey].prev;
+                delete this._storage[fkey];
+                // fall through
+              }
+              while ((i = i.next) !== head) {
+                if (ES.SameValueZero(i.key, key)) {
+                  i.key = i.value = empty;
+                  i.prev.next = i.next;
+                  i.next.prev = i.prev;
+                  this._size -= 1;
+                  return true;
+                }
+              }
+              return false;
+            },
+
+            clear: function() {
+              this._size = 0;
+              this._storage = emptyObject();
+              var head = this._head, i = head, p = i.next;
+              while ((i = p) !== head) {
+                i.key = i.value = empty;
+                p = i.next;
+                i.next = i.prev = head;
+              }
+              head.next = head.prev = head;
+            },
+
+            keys: function() {
+              return new MapIterator(this, "key");
+            },
+
+            values: function() {
+              return new MapIterator(this, "value");
+            },
+
+            entries: function() {
+              return new MapIterator(this, "key+value");
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var it = this.entries();
+              for (var entry = it.next(); !entry.done; entry = it.next()) {
+                callback.call(context, entry.value[1], entry.value[0], this);
+              }
+            }
+          });
+          addIterator(Map.prototype, function() { return this.entries(); });
+
+          return Map;
+        })(),
+
+        Set: (function() {
+          // Creating a Map is expensive.  To speed up the common case of
+          // Sets containing only string or numeric keys, we use an object
+          // as backing storage and lazily create a full Map only when
+          // required.
+          var SetShim = function Set() {
+            if (!(this instanceof SetShim)) throw new TypeError('Set must be called with "new"');
+            defineProperties(this, {
+              '[[SetData]]': null,
+              '_storage': emptyObject()
+            });
+          };
+
+          // Switch from the object backing storage to a full Map.
+          var ensureMap = function ensureMap(set) {
+            if (!set['[[SetData]]']) {
+              var m = set['[[SetData]]'] = new collectionShims.Map();
+              Object.keys(set._storage).forEach(function(k) {
+                // fast check for leading '$'
+                if (k.charCodeAt(0) === 36) {
+                  k = k.substring(1);
+                } else {
+                  k = +k;
+                }
+                m.set(k, k);
+              });
+              set._storage = null; // free old backing storage
+            }
+          };
+
+          Object.defineProperty(SetShim.prototype, 'size', {
+            configurable: true,
+            enumerable: false,
+            get: function() {
+              if (typeof this._storage === 'undefined') {
+                // https://github.com/paulmillr/es6-shim/issues/176
+                throw new TypeError('size method called on incompatible Set');
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].size;
+            }
+          });
+
+          defineProperties(SetShim.prototype, {
+            has: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                return !!this._storage[fkey];
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].has(key);
+            },
+
+            add: function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                this._storage[fkey]=true;
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]'].set(key, key);
+            },
+
+            'delete': function(key) {
+              var fkey;
+              if (this._storage && (fkey = fastkey(key)) !== null) {
+                delete this._storage[fkey];
+                return;
+              }
+              ensureMap(this);
+              return this['[[SetData]]']['delete'](key);
+            },
+
+            clear: function() {
+              if (this._storage) {
+                this._storage = emptyObject();
+                return;
+              }
+              return this['[[SetData]]'].clear();
+            },
+
+            keys: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].keys();
+            },
+
+            values: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].values();
+            },
+
+            entries: function() {
+              ensureMap(this);
+              return this['[[SetData]]'].entries();
+            },
+
+            forEach: function(callback) {
+              var context = arguments.length > 1 ? arguments[1] : null;
+              var entireSet = this;
+              ensureMap(this);
+              this['[[SetData]]'].forEach(function(value, key) {
+                callback.call(context, key, key, entireSet);
+              });
+            }
+          });
+          addIterator(SetShim.prototype, function() { return this.values(); });
+
+          return SetShim;
+        })()
+      };
+      defineProperties(globals, collectionShims);
+
+      if (globals.Map || globals.Set) {
+        /*
+          - In Firefox < 23, Map#size is a function.
+          - In all current Firefox, Set#entries/keys/values & Map#clear do not exist
+          - https://bugzilla.mozilla.org/show_bug.cgi?id=869996
+          - In Firefox 24, Map and Set do not implement forEach
+          - In Firefox 25 at least, Map and Set are callable without "new"
+        */
+        if (
+          typeof globals.Map.prototype.clear !== 'function' ||
+          new globals.Set().size !== 0 ||
+          new globals.Map().size !== 0 ||
+          typeof globals.Set.prototype.keys !== 'function' ||
+          typeof globals.Map.prototype.forEach !== 'function' ||
+          typeof globals.Set.prototype.forEach !== 'function' ||
+          isCallableWithoutNew(globals.Map) ||
+          isCallableWithoutNew(globals.Set)
+        ) {
+          globals.Map = collectionShims.Map;
+          globals.Set = collectionShims.Set;
+        }
+      }
+      // Shim incomplete iterator implementations.
+      addIterator(Object.getPrototypeOf((new globals.Map()).keys()));
+      addIterator(Object.getPrototypeOf((new globals.Set()).keys()));
+    }
+  };
+
+  if (typeof define === 'function' && typeof define.amd === 'object' && define.amd) {
+    define(main); // RequireJS
+  } else {
+    main(); // CommonJS and <script>
+  }
+})();
diff --git a/ajax/libs/es6-shim/0.9.3/es6-shim.min.js b/ajax/libs/es6-shim/0.9.3/es6-shim.min.js
new file mode 100644
index 000000000..58ea0a068
--- /dev/null
+++ b/ajax/libs/es6-shim/0.9.3/es6-shim.min.js
@@ -0,0 +1 @@
+!function(t){"use strict";var e=function(t){try{t()}catch(e){return!1}return!0},r=function(){try{return Object.defineProperty({},"x",{}),!0}catch(t){return!1}},n=function(){var t=!1;if(String.prototype.startsWith)try{"/a/".startsWith(/a/)}catch(e){t=!0}return t},o=function(){var o="undefined"==typeof global?window:global,i=o.isFinite,a=!!Object.defineProperty&&r(),u=n(),s=Array.prototype.slice,h=String.prototype.indexOf,f=Object.prototype.toString,c=Object.prototype.hasOwnProperty,l=function(t,e){Object.keys(e).forEach(function(r){var n=e[r];r in t||(a?Object.defineProperty(t,r,{configurable:!0,enumerable:!1,writable:!0,value:n}):t[r]=n)})},p="object"==typeof Symbol&&Symbol.iterator||"_es6shim_iterator_";o.Set&&"function"==typeof(new o.Set)["@@iterator"]&&(p="@@iterator");var g=function(t,e){e||(e=function(){return this});var r={};r[p]=e,l(t,r)},y={CheckObjectCoercible:function(t){if(null==t)throw TypeError("Cannot call method on "+t);return t},ToInt32:function(t){return 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diff --git a/ajax/libs/es6-shim/package.json b/ajax/libs/es6-shim/package.json
index eb685c924..9d10c5422 100644
--- a/ajax/libs/es6-shim/package.json
+++ b/ajax/libs/es6-shim/package.json
@@ -2,7 +2,7 @@
   "name": "es6-shim",
   "author": "Paul Miller (http://paulmillr.com)",
   "filename": "es6-shim.min.js",
-  "version": "0.11.0",
+  "version": "0.16.0",
   "description": "ECMAScript 6 (Harmony) compatibility shims for legacy JavaScript engines",
   "keywords": [
     "ecmascript",