Polish and Speed and Balance - oh my

Added data-driven player colours
Added XP-bonus drops from Bosses. First player to grab 'em gets the boost!
Further work on per-mob healthbars and text placement.
Tweaked fog and atmospherics in most places in the game.
Added indicators when Healers are ready to heal
Added indicators when Mages are ready to Rejuv
Mages will now Rejuv other players if their owner is full on mana.
Hooked up a new shader system for animated glass smoke
Hooked up the start of the Speech system.
Implemented some Voldarr lines, by special guest, Ricky Berwick.