Fixed #12099 -- Prevented admindocs from crashing when an application that...

Fixed #12099 -- Prevented admindocs from crashing when an application that provides template tags libraries is packaged as an egg. These libraries will be ignored.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@17401 bcc190cf-cafb-0310-a4f2-bffc1f526a37