Fixed #14702 -- Added a "needsinfo" resolution to Trac, and added supporting...

Fixed #14702 -- Added a "needsinfo" resolution to Trac, and added supporting documentation on the new resolution and closing tickets in general.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@15665 bcc190cf-cafb-0310-a4f2-bffc1f526a37