Revert "Changed the shutdown logic in finite queue to be better about active Items out, but we still have all of the hanging queues from solve. :-("
Revert "Changed the shutdown logic in finite queue to be better about active Items out, but we still have all of the hanging queues from solve. :-("

This reverts commit d524d6fdd7724b1c41b241f37af1c3ae8187f12a.

jkomoros/sudoku,jkomoros/sudoku,jkomoros/sudoku