make various redirect more generic and not hard-coded to servername
make various redirect more generic and not hard-coded to servername

gozer/bugzilla.mozilla.org,mozilla-bteam/bmo-nubis,tinnightcap/bugzilla.mozilla.org,gozer/bugzilla.mozilla.org,tinnightcap/bugzilla.mozilla.org,tinnightcap/bugzilla.mozilla.org,gozer/bugzilla.mozilla.org,mozilla-bteam/bmo-nubis,mozilla-bteam/bmo-nubis