Fix the ability to delete/rename files on assignments
Merge branch 'master' of https://github.com/YashwanthAsh/expertiza into rails4
Merge branch 'rails4' of https://github.com/YashwanthAsh/expertiza into rails4
Fixed Java Script error in due dates
Merge branch 'rails4' of https://github.com/YashwanthAsh/expertiza into rails4
Refactoring assignments controller to use form object for handling due dates
Merge remote-tracking branch 'origin/rails4' into rails4