Timeouts on Ladders Again

[yebellz]

I had an earlier suggestion for handling ladder exits that I think would help address the issues that @StephenM brought up:

[suggestion] "Limbo" State for Ladder Exits

Current implementation and issues: When a player withdraws from a ladder, they automatically resign all of their ongoing games in that ladder, which is usually undesirable. The workaround is to play out those games, while canceling any new challenges. However, this has the drawback of potentially giving a bunch of people free climbs up the ladder. When a player times out in a ladder game, they are removed from the ladder ranking, however their other games in that ladder are kept ongoing but ar…