[arch-dev-public] Mailinglist setup changes

Hi, As discussed a couple months ago I've finally moved mailman from gudrun to luna. Creating new lists from the web interface will now work without admin intervention, but the new list will only be available via listname@lists.archlinux.org, not listname@archlinux.org as before. I've set up redirects for the old URLs and old list addresses. I've had a little hiccup with the List-Id header so a couple mails will have landed in peoples inboxes. This has been corrected, but again newly created lists will have lists.archlinux.org instead of archlinux.org in the List-Id. If you notice any problems, please contact me.