refactor:update package.json

build/webpack.prod.conf.js

@@ -30,6 +30,7 @@ var webpackConfig = merge(baseWebpackConfig, {
     publicPath: config.build.assetsPublicPath
   },
   plugins: [
+    new webpack.optimize.ModuleConcatenationPlugin(),
     // http://vuejs.github.io/vue-loader/en/workflow/production.html
     new webpack.DefinePlugin({
       'process.env': env
@@ -38,7 +39,8 @@ var webpackConfig = merge(baseWebpackConfig, {
       compress: {
         warnings: false
       },
-      sourceMap: true
+      sourceMap: true,
+      parallel: true
     }),
     // extract css into its own file
     new ExtractTextPlugin({