Added django.core.extensions get_object_or_404 and get_list_or_404
Added django.core.extensions get_object_or_404 and get_list_or_404

git-svn-id: http://code.djangoproject.com/svn/django/trunk@673 bcc190cf-cafb-0310-a4f2-bffc1f526a37

--HG--
extra : convert_revision : d98832bc5a571c71956a34899ec3bcb6251dc32a

heracek/django-nonrel,adieu/django-nonrel,heracek/django-nonrel,adieu/django-nonrel,heracek/django-nonrel,adieu/django-nonrel