feat(rc5): update to angular rc.5

- NgaModule - module wrapper for all ng2-admin custom features
- Ng Module per page
- async components load
- menu moved (again) to a separate file (as now each module has its own route file)
- no need to import Ba* directives into the pages which have NgaModule in the import statement

config/webpack.dev.js

@@ -15,10 +15,13 @@ const DefinePlugin = require('webpack/lib/DefinePlugin');
  * Webpack Constants
  */
 const ENV = process.env.ENV = process.env.NODE_ENV = 'development';
+const HOST = process.env.HOST || 'localhost';
+const PORT = process.env.PORT || 3000;
+
 const HMR = helpers.hasProcessFlag('hot');
 const METADATA = webpackMerge(commonConfig.metadata, {
-  host: 'localhost',
-  port: 3000,
+  host: HOST,
+  port: PORT,
   ENV: ENV,
   HMR: HMR
 });