Passing test MovieListView should update when a model is added.
Passing test MovieListView should update when a model is removed.
Passing tests related to the toggle-all-checkbox on HeaderView.
Passing tests related to creating new movies from HeaderView.
Passing test for clearing watched movies from footer.
Passing test for triggering filter-event when changing movie-collection's activeFilter.
Passing test for propagating filter events from collection to views.
Passing tests related to hiding rows not matched by filter.