feat(build): added webpack 3's Scope Hoisting

Author: mariuszm

.babelrc

@@ -4,7 +4,7 @@
       "targets": {
         "browsers": ["last 2 versions", "safari >= 7"]
       },
-      "modules": false
+      "loose": true
     }]
   ],
   "plugins": [

src/index.js

@@ -1,3 +1 @@
-import RootModule from './app/root.module';
-
-export default RootModule;
+System.import(/* webpackChunkName: "app" */ './app/root.module');

webpack.base.conf.js

@@ -85,6 +85,8 @@ module.exports = {
   },
 
   plugins: [
+    new webpack.optimize.ModuleConcatenationPlugin(),
+
     new webpack.optimize.CommonsChunkPlugin({
       name      : 'vendor',
       minChunks : (module) => isExternal(module)