svn: Disable mwdocs and redirect to doc.wikimedia.org

Moved all related resources together and disabled them by
ensuring absence.

The only one not ensured absent is the "exec", as it (to my knowledge)
doesn't support ensure absence, I instead commented out the resource
and the require property of cron.

Change-Id: I0f9a586202e8f3e7204bc303c3faaf698752916c
Merge "svn: Disable mwdocs and redirect to doc.wikimedia.org" into production