Small Animation Tweaks

Patch to fixup some animation issues and some ragdoll funk

Added more AI behavior safeguards to prevent the rare occurence where an invisible unit might run away from the player

Fix for an issue that could prevent Nightmares from unburrowing when damaged while burrowed.

Minor spawning tweaks

Fix for a bug that could allow Mind Control on certain units that are normally immune to it.

Small spawning ruleset update to minimize the impact Altars may have on certain mission types if not playing on hard mode.

A small mercy

And a big thanks to Fastrean and Fancyneer for having made these updates possible.

Tiny fix for a dreadfully embarrassing typo