SECURITY ALERT: Corrected a problem with the Admin media handler that could lead to the exposure of system files. Thanks to Gary Wilson for the patch.

This is a security-related update. A full announcement, as well as backports for 1.0.X and 0.96.X will be forthcoming.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@11351 bcc190cf-cafb-0310-a4f2-bffc1f526a37