* added additional hint to the optional pay dialog, so user can split it and remember for auto-answer (see withChooseHint);
* Mana Vault - improved UX, now user can hide an untap cost dialog for already untapped permanent (use right click on buttons, #2656);
- game: fixed game freezes when computer try to take control over another computer or human (added game logs, related to #12878);
- cheats: improved take and give control commands, now you can give control under yourself to another player;
- cheats: improved take and give control commands, now you can return control to computer in the same priority;
- cheats: deleted useless and unused command to activate opponent's ability;
