Add basic login and register functionality

server/routes/index.js

@@ -1,9 +1,8 @@
 const express = require('express');
 const router = express.Router();
 
-/* GET home page. */
 router.get('/', function(req, res, next) {
-  res.render('index', { user: req.user });
+  res.json({ user: req.user });
 });
 
 module.exports = router;