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 9 51 56 pm](https://cloud.githubusercontent.com/assets/163763/2545607/c4e86e28-b61b-11e3-9022-97db3f327d4c.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.