Adapt to djangotoolbox's new _get_ordering interface
Adapt to djangotoolbox's new _get_ordering interface

dwdraju/djangoappengine,django-nonrel/djangoappengine,potatolondon/djangoappengine-1-4,Implisit/djangoappengine,brstrat/djangoappengine,potatolondon/djangoappengine-1-4