Did not change api.py to my knowledge, added a comment to serializers.py about Topic fields, but no code changes, wrote a bunch of api tests that don't pass and throw up errors and such
Merge with master completed
added tests to accomodate for special characteristics of uncategorized topic
Merge branch 'lucia_it3_models' of github.com:CombustibleLemons/rss-reader into lucia_it3_models