use morgan for request logging when DEBUG is on.

app.js

@@ -1,4 +1,5 @@
 var express = require('express');
+var morgan = require('morgan');
 var browserify = require('browserify');
 var bodyParser = require('body-parser');
 
@@ -21,6 +22,8 @@ redisCache.client.on('error', function(err) {
   console.log(err);
 });
 
+if (DEBUG) app.use(morgan('dev'));
+
 app.use(bodyParser.json());
 
 app.get('/js/bundle.js', function(req, res, next) {

package.json

@@ -8,7 +8,8 @@
     "underscore": "1.7.0",
     "browserify": "8.1.1",
     "express": "~4.2.0",
-    "request": "2.34.0"
+    "request": "2.34.0",
+    "morgan": "^1.5.1"
   },
   "devDependencies": {
     "nock": "0.57.0",