#10 No map if first client disconnects

[Sacha Wilberg]

If the first client to connect to a server disconnects before starting
the game, the server has to be restarted, because it continues to
wait for something that now cannot happen. Would be good if one
could select a map and start a game from the server window,
possibly even start a new game after the old one has ended - just to
avoid having everybody to restart and reconnect.