Bit of UI stuff
Change term from string to int (enum)
Link 'sister courses', same course/diff term
Use context to link courses without explicit dept
Add lock icon to courses that need instructor permissiong
Clean up Course model by moving to decorators
Credits, more decorator stuff
Fix whitespace when linkifying
Better title formatting/link detection
Enable Bootstrap JS things
Feedback form
Add rand() search query
Consolidate sections into the same course
Fix extremely annoying bug I think has to do with squeel
Big reshuffling - add Section model