Fixed: Fraglimit changes wouldn't end the match properly if a player had more...

When the fraglimit was changed via rcon or voting, the match continued on until a player made a frag and hit the limit. This was fine unless both players were over the new limit which was a scenario described in ticket 1137. Die would incorrectly award the wrong player because it only checked if the player doing damage was over the limit and not both players. This new method is cleaner and doesn't rely on A_Die to finish the match when fraglimits are changed and happen to be lower than either player's frag amount.