build config

build/webpack.build.min.js

@@ -3,13 +3,15 @@ var webpack = require('webpack');
 
 config.output.filename = config.output.filename.replace(/\.js$/, '.min.js');
 
-delete config.devtool;
-
 config.plugins = [
+  new webpack.LoaderOptionsPlugin({
+    minimize: true,
+    debug: false
+  }),
   new webpack.optimize.UglifyJsPlugin({
-    sourceMap: false,
-    drop_console: true,
+    comments: false,
     compress: {
+      drop_console: true,
       warnings: false
     }
   })