Added Start Game to MenuSystem.
Bugfix: ListModelSetBridge doesn't remove from checkerSet when interval
removed.
Switched pod list to Set and used pod listeners in ResourceManager.
Removed concurrency in TR.abortCurrentGame.
Switched TRConfiguration pod list to DefaultListModel.
Added ability to bypass auto exception handling in TRFutureTask.
Add sync barriers to Game and made them blocking.
Separated game boot and start sequences in GameShell.
Added support for updating POD list without restarting to ConfigWindow.
Switched from missionTask to missionLock (sync) barrier in Mission.
Misc cleanup and refactorings.