[1.0.X] Fixed #11322 -- Clarified docs regarding middleware processing. Thanks...

[1.0.X] Fixed #11322 -- Clarified docs regarding middleware processing. Thanks the Michael Malone for the patch.

Merge of r11048 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.0.X@11060 bcc190cf-cafb-0310-a4f2-bffc1f526a37