<VirtualHost> for m.wikipedia.org, aliasing zero.wikipedia.org

* Removed redirect of zero.wikipedia.org to en.zero.*/special:ZRMA

* All requests to m|zero .wikipedia.org will be sent to the
mobilelanding.php which will determine based on X-CS and other headers
the most appropriate starting page for this user, and redirect to it.

Change-Id: Id9daf97af40df376891da814c7d8a46a9dd2dc5b