[1.2.X] Fixed #13681 -- Added a commented out admindocs entry to the default...

[1.2.X] Fixed #13681 -- Added a commented out admindocs entry to the default INSTALLED_APPS for a new project. Thanks to elkan for the report, and andrews for the patch.

Backport of r13658 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.2.X@13661 bcc190cf-cafb-0310-a4f2-bffc1f526a37