add object assign

package.json

@@ -10,7 +10,8 @@
     "express": "^4.13.4",
     "mocha": "^2.4.5",
     "mongodb": "^2.1.16",
-    "morgan": "^1.7.0"
+    "morgan": "^1.7.0",
+    "object-assign":"4.1.0"
   },
   "engine": {
     "node": "*",

server.js

@@ -4,6 +4,8 @@ var express = require('express'),
     app     = express(),
     eps     = require('ejs'),
     morgan  = require('morgan');
+    
+Object.assign=require('object-assign')
 
 app.engine('html', require('ejs').renderFile);
 app.use(morgan('combined'))