Add UI for displaying light-statuses

UI is split into three-columns representing active TC-builds, Twitter feed, and TC pass/fail status.
Elements will scale based on viewport height and width (there may be some outliers where content breaks out of its container).
Updates to client are mostly done via socket-connection.

#### Original mockup
![image](https://cloud.githubusercontent.com/assets/3382469/4994523/c76bc558-6987-11e4-8972-6f7670aa45a1.png)

#### Proposed UI
![image](https://cloud.githubusercontent.com/assets/3382469/4994456/35f4578e-6987-11e4-992e-e7590bf30ee2.png)