Clarified documentation regarding string-form model references.
Clarified documentation regarding string-form model references.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@3597 bcc190cf-cafb-0310-a4f2-bffc1f526a37

--HG--
extra : convert_revision : fb0d2aa63ac37839781672485564c050837c394d

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