"Spectator" mode to help in switching teams while autobalancing is enabled.
Spectators don't bias energy use.
Spectators can't say/teamsay once the game has started
Spectators show up at the bottom of the scoreboard, indicated as such.
Turned off team shuffling between maps by default (there's a config var bAutoShuffleTeams that can be set to re-enable it)

+ lowlands roundhouse turret collision modified

+ potential fix for lowlands roundhouse turret barrel getting offset