NEW 3 save slots for challenges!;

NEW Per slot Undo/Redo stack;

FIX/NEW Working Undo/Redo with/without slots;

MI Slots for Challenges only;

MI Simulation Deterministic mode is default for everything;

MI Mouse and keyboard revert to a suspended state when windows unfocused;

UX Keyboard and mouse defaults to a suspended states for 100ms on window activated;

UX Editor/Freecam button shows the actual mode the cam is in;

FIX warning sound when placing a block close the edge;

FIX Ctrl-z doesn't trigger camera tilt;

FIX Ctrl-z properly work the first time;