Change __unicode__ method to name for image/video
Make phone field nullable to un-break migrations

refs #17541
Made the phone field nullable

refs #17541
Created initial migration

refs #17535
Make migrations pep8
Fixed migration file for pep8 compliance

refs #17535
Merge branch 'feature/17535' of github.com:osu-cass/whats-fresh-api into feature/17535

Conflicts:
	whats_fresh/whats_fresh_api/migrations/0001_initial.py
Merge pull request #26 from osu-cass/feature/17535

Feature/17535
Merge branch 'develop' into bug/17433
Add default group data migration

refs #17433