Added version endpoint

routes/index.js

@@ -1,7 +1,14 @@
 const express = require('express');
 const path = require('path');
+const _ = require('lodash');
+const pkg = require('../package.json');
+
 const router = express.Router();
 
+router.use('/', (req, res) => {
+  res.json(_.pick(pkg, ['version']));
+});
+
 router.use('/api/v1', require('./api'));
 router.use('/admin', require('./admin'));
 router.use('/embed', require('./embed'));