update facebook url
add anon_jabber_at ACL
add access_max_user_messages to mod_offline
replace non-existing ACL 'everybody' with appropriate existing one
c2s can only be accessed as 'local'
transport access now configured with its own ACL
limit access to turn and sip
stun now also available via IPv6
move ejabberd_stun to correct location
add an extra port 5282 for anon.jabber.at
restrict anon.jabber.at even further to IP
pubsub only available to local users
config anon.jabber.at