Switched to having request as an optional kwarg and determining how to call super based on whether request was provided. Resolves r16144 compatibility.
Switched to having request as an optional kwarg and determining how to call super based on whether request was provided. Resolves r16144 compatibility.

matthiask/django-mptt,restless/django-mptt,emilhdiaz/django-mptt,denys-duchier/django-mptt-py3,pjdelport/django-mptt,AndrewGrossman/django-mptt,emilhdiaz/django-mptt,promil23/django-mptt,denys-duchier/django-mptt-py3,shultais/django-mptt,promil23/django-mptt,watchdogpolska/django-mptt,lojaintegrada/django-mptt,AndrewGrossman/django-mptt,lojaintegrada/django-mptt,emilhdiaz/django-mptt,michaeljohnbarr/django-mptt,andybak/django-mptt,Sinkler/django-mptt,musashiXXX/django-mptt,musashiXXX/django-mptt,restless/django-mptt,caktus/django-mptt,promil23/django-mptt,watchdogpolska/django-mptt,caktus/django-mptt,matthiask/django-mptt,matthiask/django-mptt,andybak/django-mptt,fusionbox/django-mptt,shultais/django-mptt,sandow-digital/django-mptt-sandow,restless/django-mptt,lojaintegrada/django-mptt,watchdogpolska/django-mptt,AndrewGrossman/django-mptt,Sinkler/django-mptt,michaeljohnbarr/django-mptt,emilhdiaz/django-mptt,andybak/django-mptt,matthiask/django-mptt,michaeljohnbarr/django-mptt,danielnaab/django-mptt,shultais/django-mptt,fusionbox/django-mptt,danielnaab/django-mptt,fusionbox/django-mptt,caktus/django-mptt,musashiXXX/django-mptt,watchdogpolska/django-mptt,sandow-digital/django-mptt-sandow,Sinkler/django-mptt,pjdelport/django-mptt