Removed logging from Security and Listener classes.
Added logging to individual packet types.
Fixed multicast packets being ignored completely.
Removed call to databuilder in a setData function where it was not known.
Fixed NPE in BroadcastMessageParser when getting Nickname and Hostname from packet.
Fixed NPE in Protocol.broadcast_message when searching for non-existant user after getting first broadcast.
Merge branch 'kevin' into jeroen