Fixed #12619 -- Added support for the --noinput flag to testserver. Thanks to...

Fixed #12619 -- Added support for the --noinput flag to testserver. Thanks to clouserw for the suggestion, and darkrho for the patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@13365 bcc190cf-cafb-0310-a4f2-bffc1f526a37