add jabber.zone/jabber.wien ACLs
add bare config for jabber.zone and jabber.wien
add module config for jabber.zone
jabber.wien and jabber.zone are blocked as usernames
use mod_irc for local users
mod_muc_loc and mod_proxy65 are now shared between all hosts
try to fix handler according to https://github.com/processone/ejabberd-contrib/issues/48#issuecomment-53954323