Clean up connection logging a bit

 - Habitat connections no longer vocally count out characters
 - Habitat connections no longer log every logged in user that isn't
   the destination for a Habitat packet
 - Packet trace logging now correctly logs that it's sending FRAME_END
Fix ProxiedAction.

We don't actually need ProxiedCommand for this - AbstractCommand already
doesn't check CRCs. We do still need ProxiedCommand in order to get the
bytes stored somewhere sane - finalizeCmd does all the rest of the work.

There's still something wrong here because Club Caribe isn't actually
working - however, the traces clearly show that exactly the data that
should be making it to the C64 is making it there.
Correct hatchery packet.

This got me to the screen we'd gotten with the netcat tricks during
the hackathon!
Logging and whitespace cleanup on node.js server