Added datatables-colvis library

ajax/libs/datatables-colvis/1.1.0/css/datatables.colvis.jqueryui.min.css

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+button.ColVis_Button,ul.ColVis_collection li{padding:.5em}ul.ColVis_collection{margin:0;padding:0}ul.ColVis_collection li{clear:both;display:block;text-align:left;margin:-1px 0 0 0}ul.ColVis_collection li span{display:inline-block;padding-left:.5em;cursor:pointer}

ajax/libs/datatables-colvis/1.1.0/css/datatables.colvis.min.css

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+div.ColVis{float:right;margin-bottom:1em}button.ColVis_Button,ul.ColVis_collection li{position:relative;float:left;margin-right:3px;padding:5px 8px;border:1px solid #999;cursor:pointer;*cursor:hand;font-size:.88em;color:#000!important;white-space:nowrap;-webkit-border-radius:2px;-moz-border-radius:2px;-ms-border-radius:2px;-o-border-radius:2px;border-radius:2px;-webkit-box-shadow:1px 1px 3px #ccc;-moz-box-shadow:1px 1px 3px #ccc;-ms-box-shadow:1px 1px 3px #ccc;-o-box-shadow:1px 1px 3px #ccc;box-shadow:1px 1px 3px #ccc;background:#fff;background:-webkit-linear-gradient(top,#fff 0,#f3f3f3 89%,#f9f9f9 100%);background:-moz-linear-gradient(top,#fff 0,#f3f3f3 89%,#f9f9f9 100%);background:-ms-linear-gradient(top,#fff 0,#f3f3f3 89%,#f9f9f9 100%);background:-o-linear-gradient(top,#fff 0,#f3f3f3 89%,#f9f9f9 100%);background:linear-gradient(top,#fff 0,#f3f3f3 89%,#f9f9f9 100%);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffff', endColorstr='#f9f9f9', GradientType=0)}.ColVis_Button:hover,ul.ColVis_collection li:hover{border:1px solid #666;text-decoration:none!important;-webkit-box-shadow:1px 1px 3px #999;-moz-box-shadow:1px 1px 3px #999;-ms-box-shadow:1px 1px 3px #999;-o-box-shadow:1px 1px 3px #999;box-shadow:1px 1px 3px #999;background:#f3f3f3;background:-webkit-linear-gradient(top,#f3f3f3 0,#e2e2e2 89%,#f4f4f4 100%);background:-moz-linear-gradient(top,#f3f3f3 0,#e2e2e2 89%,#f4f4f4 100%);background:-ms-linear-gradient(top,#f3f3f3 0,#e2e2e2 89%,#f4f4f4 100%);background:-o-linear-gradient(top,#f3f3f3 0,#e2e2e2 89%,#f4f4f4 100%);background:linear-gradient(top,#f3f3f3 0,#e2e2e2 89%,#f4f4f4 100%);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#f3f3f3', endColorstr='#f4f4f4', GradientType=0)}button.ColVis_Button{height:30px;padding:3px 8px}button.ColVis_Button::-moz-focus-inner{border:0!important;padding:0}button.ColVis_Button:active{outline:0}div.ColVis_collectionBackground{position:fixed;top:0;left:0;height:100%;width:100%;background-color:#000;z-index:1100}ul.ColVis_collection{width:150px;padding:8px 8px 4px;margin:0;border:1px solid #ccc;border:1px solid rgba(0,0,0,.4);background-color:#f3f3f3;background-color:rgba(255,255,255,.3);overflow:hidden;z-index:2002;-webkit-border-radius:5px;-moz-border-radius:5px;-ms-border-radius:5px;-o-border-radius:5px;border-radius:5px;-webkit-box-shadow:3px 3px 5px rgba(0,0,0,.3);-moz-box-shadow:3px 3px 5px rgba(0,0,0,.3);-ms-box-shadow:3px 3px 5px rgba(0,0,0,.3);-o-box-shadow:3px 3px 5px rgba(0,0,0,.3);box-shadow:3px 3px 5px rgba(0,0,0,.3)}ul.ColVis_collection li{position:relative;height:auto;left:0;right:0;padding:.5em;display:block;float:none;margin-bottom:4px;-webkit-box-shadow:1px 1px 3px #999;-moz-box-shadow:1px 1px 3px #999;-ms-box-shadow:1px 1px 3px #999;-o-box-shadow:1px 1px 3px #999;box-shadow:1px 1px 3px #999;text-align:left}ul.ColVis_collection li.ColVis_Button:hover{border:1px solid #999;background-color:#f0f0f0}ul.ColVis_collection li span{display:inline-block;padding-left:.5em;cursor:pointer}ul.ColVis_collection li.ColVis_Special{border-color:#555;background:#ededed;background:-webkit-linear-gradient(top,rgba(237,237,237,1) 0,rgba(214,214,214,1) 77%,rgba(232,232,232,1) 100%);background:-moz-linear-gradient(top,rgba(237,237,237,1) 0,rgba(214,214,214,1) 77%,rgba(232,232,232,1) 100%);background:-ms-linear-gradient(top,rgba(237,237,237,1) 0,rgba(214,214,214,1) 77%,rgba(232,232,232,1) 100%);background:-o-linear-gradient(top,rgba(237,237,237,1) 0,rgba(214,214,214,1) 77%,rgba(232,232,232,1) 100%);background:linear-gradient(to bottom,rgba(237,237,237,1) 0,rgba(214,214,214,1) 77%,rgba(232,232,232,1) 100%);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#ededed', endColorstr='#e8e8e8', GradientType=0)}ul.ColVis_collection li.ColVis_Special:hover{background:#e2e2e2;background:-webkit-linear-gradient(top,#d0d0d0 0,#d5d5d5 89%,#e2e2e2 100%);background:-moz-linear-gradient(top,#d0d0d0 0,#d5d5d5 89%,#e2e2e2 100%);background:-ms-linear-gradient(top,#d0d0d0 0,#d5d5d5 89%,#e2e2e2 100%);background:-o-linear-gradient(top,#d0d0d0 0,#d5d5d5 89%,#e2e2e2 100%);background:linear-gradient(top,#d0d0d0 0,#d5d5d5 89%,#e2e2e2 100%);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#f3f3f3', endColorstr='#e2e2e2', GradientType=0)}span.ColVis_radio{display:inline-block;width:20px}div.ColVis_catcher{position:absolute;z-index:1101}.disabled{color:#999}

ajax/libs/datatables-colvis/package.json

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+{
+    "name": "datatables-colvis",
+    "version": "1.1.0",
+    "filename": "js/datatables.colvis.min.js",
+    "description": "ColVis adds a button to the toolbars around DataTables which gives the end user of the table the ability to dynamically change the visibility of the columns in the table",
+    "homepage": "https://datatables.net/extras/colvis/",
+    "maintainers": [
+        {
+            "name": "Allan Jardine",
+            "url": "http://sprymedia.co.uk"
+        }
+    ],
+    "licenses": [
+        {
+            "type": "BSD",
+            "url": "http://datatables.net/license_bsd"
+        },
+        {
+            "type": "GPLv2",
+            "url": "http://datatables.net/license_gpl2"
+        }
+    ],
+    "dependencies": {
+        "jquery": "1.3 - 2.1",
+    },
+    "keywords": [
+        "DataTables",
+        "DataTable",
+        "table",
+        "grid",
+        "filter",
+	"colvis",
+	"visibility"
+    ]
+}