[1.1.X] Fixed #13158 -- Clarified that OneToOneField is a better option for...

[1.1.X] Fixed #13158 -- Clarified that OneToOneField is a better option for User profile classes. Thanks to hvdklauw for the report and patch.

Backport of r13197 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.1.X@13200 bcc190cf-cafb-0310-a4f2-bffc1f526a37