Release notes

• BUGFIX: Zombies in zombie pack lock player forever.
  
• NEW: Now spawner changes the random seed every time it is initialized, improving its randomness.
  
• NEW: Spawner randomness now is also on spawning locations.
  
• BUGFIX: ResetXform operation in model Editor doesn't reset tangent transforms causing wrong normalmap computations.
  
• BUGFIX: Potential leak in the animations job.
  
• NEW: Added new "RecomputeTangents" option in the EditVerts tab of the model editor.