Added more tests for "notifications.forms.SubscriptionForm".
Added more tests for "notifications.forms.SubscriptionForm" (subscription deletion).
Removed unused function.
Removed unused widget.
Added more tests for "core.templatetags.basefuncs".
Added rules to ignore "coverage.py" report files.
Added docs to explain why there's a Group proxy model.
Added more tests for "core.models".
Added some tests for "core.views".
Improved tests for "core.utils.dependencies".
Improved tests for "core.backends".
Fixed importing of "core.forms.auth.UserForm" in "registration.forms".
More robust styling for form inputs with errors (or required ones).