Add stubs in controller tests for functionality moved to model
Moving collection toggle functionality to model. Implemented add/remove if not 'all.'
Implemented main toggle method. Need to implement searcher support method
Implement id finder method for toggle_collection
all_displayed_active? helper method
Reimplemented collection_active_class
Simplify collection_active_class for better visual feedback
Toggle_collection was written backwards (deleted instaed of added). Fixing.
Finished fix for backwards all implementation by fixing finder support method
Enable the toggle to toggle all collections off if they're all on
Update method to account for new possibility of hidden collections being active