Staff Debug/Status Info UI

This work adds basic styling for staff-centric portions of the ORA xblock. You can see the desired styling in the following screengrab:

![screen shot 2014-03-27 at 10 13 34 pm](https://cloud.githubusercontent.com/assets/163763/2545713/b3fc4c52-b61f-11e3-97fc-8d0e03b66221.png)


Note: This has not been proofed in the LMS yet - there may be tabular-based styles that override/clobber some of this planned styling.