UglifyJS warnings on production build now hidden

webpack.config.js

@@ -18,7 +18,15 @@ var config = {
         loader : 'babel'
       }
     ]
-  }
+  },
+  plugins: [
+    new webpack.optimize.UglifyJsPlugin({
+      compress: {
+          warnings: false
+      }
+      })
+    ]
 };
 
+
 module.exports = config;