Implemented new check for model str methods.
Limit new check to roundtable models.
Refactored new check to run on all non-contributed app models.
Refactored check into single loop list comprehension; matches official Django checks.
Moved roundtable checks file to camelot.
Changed check_model_str ID to camelot to reflect new behavior.
Import camelot checks in settings.
Created foo app; created Bar model; added foo to settings.
Removed foo app from settings; deleted foo app files.
Created skeleton model check for Knight traitor field.
Implemented Knight model traitor field check.
Demonstrated skeleton modularization of model checks in Knight model.
Re-implemented Knight model traitor field check.
Added dances field to roundtable Knight model.
Generated schema migration for Knight model dances field.
Generated and implemented data migration for Knight model dances field.
Coded KnightManager (best practice prior to Django 1.7).
Coded KnightQuerySet and used as_manager (best practice as of Django 1.7).