!1 Merge back to master

Merge pull request !1 from dev branch

client/webpack.config.prod.js

@@ -0,0 +1,16 @@
+const common = require("./webpack.config.common.js");
+const merge = require("webpack-merge");
+const UglifyJS = require("uglifyjs-webpack-plugin");
+const webpack = require("webpack");
+
+module.exports = merge(common, {
+  devtool: "source-map",
+  plugins: [
+    new UglifyJS({
+      sourceMap: true
+    }),
+    new webpack.DefinePlugin({
+      "process.env.NODE_ENV": JSON.stringify("production")
+    })
+  ]
+});