public void sessionPacket( Who sender, FlexBuffer buf ) throws Exception
{
// messagize the packet.
Message msg = tdi.readMessage( buf );
// Log.report( "Messagizer.packet", "who", this, "recv", msg );
boolean handled = session.sessionMessage( sender, msg );
if (!handled)
session.sessionNotify( new UnwantedMessage( sender, msg ) );
}