Tootsville.Game.Gatekeeper.logOK is a function with lambda list: (gram)
Acknowledge a new player's login
neighbor: next-hop neighbor's UUID for peer-to-peer connections
Note that this message (only) uses _cmd as its attribute rather than c or from for historical reasons.
This message is usually unicast.
Hides Toots view, if it was present. Displays any motd on server connection.
UNIMPLEMENTED TODO peer connections.