Add tests for workshop's cpanel add_group_view
Use generic View for add_group
Add tests for edit_group view
Use generic View for edit_group
Add tests for schedule_change view
Use generic View for schedule_change
Add tests for workshop_add view
Check view without selecting a semigroup
Use generic View for workshop_add
Add test for reset_reviews view
Test if reset_reviews redirects
Move the logic for removing non expected reviews to model
Add test for gradebook view
Use ListView for gradebook
Use UpdateView instead of View for EditGroupView
Use CreateView instead of View for add_group
Use UpdateView instead of View for schedule_change
Merge pull request #379 from badescunicu/workshop_refactor

Workshop refactor