Admin should be able to see every deliverable in a course
Refactored 'filter by my teams' to use ActiveRecord instead of SQL. Refactored according to @professor suggestions.
Individual Deliverable, filtered by teams
Check variable 'queue' with empty? instead of nil?
Merge branch 'master' of http://github.com/TeamTuring/whiteboard
Created tests for 'filter by individual deliverables' when there are teams in course