Fix speed spell effect
Don't pass spell duration thru the speed spell effect, minor cleanup
Tweak speed spell effect
Replace function with method
Move spellinstance field out of spell effect base class
Remove unused spellinstance fields
Replace direct spell array access
Fix invalid spell handle in magic missile spell effect
Remove function No_MagicAllowed
Code style
Rename parameter
Move function AddPoisonFog
Code style
Use std::vector for skeleton bones
Remove unused field from bone
Use std::vector for bone vertex indices
Remove function AddIdxToBone
Remove unused array
Remove memcpy
Remove memcpy