Prepare queryset_transform for Django 1.9
Prepare queryset_transform for Django 1.9

mjl/feincms,feincms/feincms,matthiask/django-content-editor,feincms/feincms,mjl/feincms,mjl/feincms,joshuajonah/feincms,matthiask/django-content-editor,matthiask/feincms2-content,matthiask/django-content-editor,matthiask/django-content-editor,feincms/feincms,matthiask/feincms2-content,joshuajonah/feincms,joshuajonah/feincms,matthiask/feincms2-content,joshuajonah/feincms