Now, the spawning should be running Vanilla logic; except
that it is calculated per region (which is what per player
was effectively achieving anyways).
Will be removed later once this is all public.
Fixed many issues with teleporting players on vehicles
while in the same region.
Additionaly, make sure dead players are dismounted - as
this logic was previously done by remove.
Re-add regiontodo.txt
Because game time is now on the global tick thread, we no longer
need adjustments for any block entity. But, just in case we do
updateTicks functions now.
