Add signal and categories
Merge pull request #4 from brebory/signal_and_categories

Add signal and categories. Boom. Looks like we'll need to add a database migration too. I'll add that.
Lots of styling changes
Add migration for Stephen's changes
Fix typos
Add OpenBadges integration - add Assertions json endpoint, Organization json endpoint, and Badge json endpoint.
Refactor dashboard view to use UserBadges instead of Achievements and Badges
update resources page
Merge pull request #16 from brebory/develop

merge develop