Remove hash & path on dev webpack css module names

This will make bok-choy testing easier.

webpack.dev.config.js

@@ -37,7 +37,7 @@ module.exports = Merge.smart(commonConfig, {
                         options: {
                             sourceMap: true,
                             modules: true,
-                            localIdentName: '[path][name]__[local]--[hash:base64:5]'
+                            localIdentName: '[name]__[local]'
                         }
                     },
                     {