Replace file transfer sounds with an elevator bell

darcs-hash:20091228101922-58252-7ff547b4af60009e1fb68287f30c29dfc141b347
Added requirement for a host in destination address for bonjour mode

Ignore-this: 98dbd8a58345dc69e80d6791c509ab4a

darcs-hash:20091229095034-1e3d8-cca1b22033237fa2de21e07bc7acc9df271e366d