Moving permission checking from AdminModel2Mixin to PermissionMixin were it belongs.
Moving permission checking from AdminModel2Mixin to PermissionMixin were it belongs.

yarbelk/django-admin2,hnakamur/django-admin2,andrewsmedina/django-admin2,pydanny/django-admin2,pydanny/django-admin2,hnakamur/django-admin2,andrewsmedina/django-admin2,yarbelk/django-admin2,andrewsmedina/django-admin2