fix(server): fix express router usage

Author: Awk34

templates/app/server/api/user(auth)/index.js

@@ -4,7 +4,7 @@ import {Router} from 'express';
 import * as controller from './user.controller';
 import * as auth from '../../auth/auth.service';
 
-var router = new Router();
+var router = Router();
 
 router.get('/', auth.hasRole('admin'), controller.index);
 router.delete('/:id', auth.hasRole('admin'), controller.destroy);