Update Pure package.json to v0.4.2

ajax/libs/pure/package.json

@@ -1,7 +1,7 @@
 {
     "name": "pure",
     "filename": "pure-min.css",
-    "version": "0.3.0",
+    "version": "0.4.2",
     "description": "A set of small, responsive CSS modules that you can use in every web project.",
     "homepage": "http://purecss.io/",
     "keywords": ["css","framework","responsive"],
@@ -13,4 +13,4 @@
            "type": "git",
            "url": "https://github.com/yui/pure/"
        }]
-}
+}