due performance issues webpack-contrib/css-loader#124, downgrade css plugin

Author: BowlingX

package.json

@@ -30,7 +30,7 @@
     "babel-loader": "^5.3.1",
     "babel-runtime": "^5.8.20",
     "coveralls": "^2.11.2",
-    "css-loader": "^0.16.0",
+    "css-loader": "^0.14.5",
     "del": "^1.2.0",
     "eslint": "^1.2.1",
     "eslint-loader": "^1.0.0",