Add Unit Testing

[audols]

Unit testing necessary to ensure correctness of each step of conveyor belt

[dlt009]

Sorry for late update but in case nobody checked almost all of their tests fail -- still working to resolve them, but probably need to address this to TA @ DI

[prkumar]

The server tests apparently pass on Travis, if you use node 0.10.x.

[dlt009]

Idk it says its node 0.10.x in the json file but I still can't get it to work...but if it works on CI thats good