removing comments and unecessary username field
Merge branch 'develop' of github.com:YetiHQ/manticore-tastypie-user into remove-username-dependancy
use Django's built in USERNAME_FIELD functionality
Merge pull request #2 from YetiHQ/remove-username-dependancy

Remove username dependancy
Merge pull request #3 from YetiHQ/develop

use Django's built in USERNAME_FIELD functionality