Tweaking font sizes, need to find the rest of the hard-coded one's and change to ems
More backlog controller/view cleanup, working performance issues & usability stuff

- Added automatic selection of closest available FTD
- Removed extra watcher where able
- Stabilized/cleaned up a lot of the scary controller stuff
- Added state change to TDY vs Local depending on which FTD the users
selects
- Removed several slow angular filters in favor of lo-dash in the
controller
- Added smart error handler for when a student is listed against a
course that no unit teaches