got rid of some django 1.8 warnings
got rid of some django 1.8 warnings

glomium/django-bmf,glomium/django-bmf,glomium/django-bmf,django-bmf/django-bmf,django-bmf/django-bmf,glomium/django-bmf,django-bmf/django-bmf,django-bmf/django-bmf