Production fixes

package.json

@@ -16,6 +16,7 @@
     "karma": "^0.13.9"
   },
   "dependencies": {
+    "bluebird": "^3.4.6",
     "body-parser": "latest",
     "cookie-parser": "^1.4.1",
     "express": "latest",
@@ -25,6 +26,7 @@
     "jsonwebtoken": "^6.2.0",
     "mongoose": "latest",
     "morgan": "^1.7.0",
+    "nodemailer": "^2.7.0",
     "passport": "^0.3.2",
     "passport-local": "^1.0.0",
     "serve-favicon": "^2.3.0"