apps.administrator...TestRestfulSimplifiedAssignment: Fix test error.
apps.administrator...TestRestfulSimplifiedAssignment: Fix test error.

This was caused by the ``admins=['admin__username']`` fieldspec that was
added to administrator simplified as a means of getting the usernames of
admins.

devilry/devilry-django,devilry/devilry-django,devilry/devilry-django,vegarang/devilry-django,devilry/devilry-django,vegarang/devilry-django