Use nose instead of django-discover-runner
Updated app factories
finished apps/artists
Nose tests don't override search pattern
Change related to use make instead of create kwarg
removed django pdf creation from utile
Add apps/press testing
revised apps/artists testing to test fore `artist-list` reverse
add back testing app mixin
libs/slugify callable testing
finished apps/updates
Fixed test django image create to use In Memory file
fixed photos factory creation to specify content object
add apps/exhibitions
Merge pull request #103 from saulshanabrook/refactor/testing

Refactor/testing