Fixed #3291 -- Allow calling get_absolute_url() with extra positional and

keyword arguments. Not usually required, but useful for people wanting to write
some kinds of customisations. Patch from __hawkeye__.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@6732 bcc190cf-cafb-0310-a4f2-bffc1f526a37