Fixed #10329 -- Added link target for get_FOO_display, get_next_by_FOO, and get_previous_by_FOO. Thanks to rctay for the report, and timo for the patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@10152 bcc190cf-cafb-0310-a4f2-bffc1f526a37