Testing with Mocha and Continuous Integration with TravisCI

To get CI working on your end you'll need to:

1. Sign up for [TravisCI](https://travis-ci.org).
2. Turn on CI for your repo on [your profile page](https://travis-ci.org/profile/Sinetheta).
3. Set an environment variable to tell the test suite that it's Travis and that a MondoDB is already available. 
![node_env](https://cloud.githubusercontent.com/assets/1529452/5157141/02e26616-72aa-11e4-9d9e-44775630ef09.png)
4. Swap out the badge in the README.md for one that points to your project.