Feat: Add react-hot-loader

Combine webpack and browser-sync on one port

server/middlewares/jade-helpers.js

@@ -1,7 +1,4 @@
 import manifest from '../rev-manifest';
-/* eslint-disable import/default */
-import config from '../../webpack.config';
-/* eslint-enable import/default */
 
 let chunkManifest;
 try {
@@ -30,16 +27,9 @@ function removeOldTerms(str = '') {
   return str.replace(challengesRegex, '');
 }
 
-function getBundleLocation() {
-  return __DEV__ ?
-    config.output.publicPath + '/bundle.js' :
-    rev('/js', 'bundle.js');
-}
-
 export default function jadeHelpers() {
   return function jadeHelpersMiddleware(req, res, next) {
     res.locals.removeOldTerms = removeOldTerms;
-    res.locals.getBundleLocation = getBundleLocation;
     res.locals.rev = rev;
     // static data
     res.locals.user = req.user;