Fixed default ragdoll pose for Torso and Fast Zombie models.
Actually fixed Ravenholm sawblade Torso this time :)

Adjusted directional walk animations for Classic zombie to better suit the 4 unique forward walk animations.
Fixed Classic Torso ragdoll animation for Ravenholm intro.
Fixed Fast Zombie melee animation loop and headcrab pose.
Higher quality Zombine model with better rigging and animation adjustments.

360 degree Poison Zombie walking animations by "Randy Username"
Fixed Classic Torso headcrab rigging and pose.
Restored higher poly headcrab model for Classic Zombie.
Zombine animation and IK revisions.

Fixes the fast zombie jump that I accidentally broke with two script lines.