Fix for timezone issues
Fix for linking topics tab
Changed review -> reviews
Fix to teammate review rubric
Refactored copy method in assignment controller
Renamed set_up method to Set_up_assignment_review
Fixed large string issue in timezone - due date picker
testing files
removed database.yml
Merge branch 'master' of https://github.com/vshesha/expertiza into e801
Closes #357

Conflicts:
	Gemfile
Make assignment editing more resilient to nil values.
This fixes a bug in #357