Installing moment and request

Moment is used for checkin formatting and co-request is used for API
calls.
Better comments for grunt
Adding test dependencies

Mocha test is used for grunt testing and blanket is used for generating
code coverage analysis.

Asana: #9722922010663
Merge branch 'master' into foursquare
Removing code coverage for now

Should is also more important. I decided to use should as opposed to
chai because it was by the visionmedia who also wrote mocha.
Adding the checkin model

The checkin model represents a foursquare checkin and has some basic
helper methods associated with it.

Asana: #9722922010661, #9722922010663
Initial foursquare checkin rendering

Handles the initial case for checkin rendering. No styles have been
added yet.

Asana: #9746963067627, #9746963067633
Adding styles back to the application

This is so the statusboard looks pretty and awesome.

Asana: #9746963067630