Moves Django admin app to root_urlconf
Changes script comment to html comment in new_tab_redirect.html
Creates library to facilitate django oauth with canvas in order to get a token for the SDK.

Tokens are per django user.

This version of the library is still dependent on django-auth-lti middleware
Merge branch 'feature/oauth_library' into feature/oauth_integration

Conflicts:
	ab_testing_tool/urls.py