Move to webpack

Signed-off-by: Julius Härtl <jus@bitgrid.net>

js/webpack.prod.config.js

@@ -0,0 +1,13 @@
+const webpack = require('webpack');
+const merge = require('webpack-merge');
+const baseConfig = require('./webpack.config.js');
+
+module.exports = merge(baseConfig, {
+	plugins: [
+		new webpack.DefinePlugin({
+			'process.env': {
+				'NODE_ENV': JSON.stringify('production')
+			}
+		}),
+	]
+});