Dependency Updates

Greetings! Your friendly Depend On bot here with some updates!

I made the following updates:

* stylus -> 0.49.3
* mongodb -> 2.0.5
* express -> 4.10.2
* errorhandler -> 1.2.2
* mandrill-api -> 1.0.41
* morgan -> 1.5.0
* body-parser -> 1.9.2