Added win condition, among other things.

 - Game now checks to see if a player has no cells alive, and
   skips their turn because of it.
 - Better extinct player skipping with less misleading debug
   messages.
 - Turns are now reported by color, not by number. (It got
   really confusing beforehand.)
 - extinct(player) can be used to pass a variable as a player
   number when checking for extinct players.
 - New initializations in the new game code to allow for
   playing subsequent games without refreshing.