Fixed #16803 -- Use model verbose_name directly as ContentType unicode...

Fixed #16803 -- Use model verbose_name directly as ContentType unicode representation so it can be translated. Thanks to bronger for the report and Ivan Sagalaev for the patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16839 bcc190cf-cafb-0310-a4f2-bffc1f526a37