Yogg-Saron tentacles

Npcs 33966 and 33985
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Prevent combat movement for Yogg-Saron illusion npcs
Implement script for npc 33991
Random Ashenvale Script Cleanups
More Ashenvale Cleanups - Should Reduce CPU Loads
Improve General Mana Checks For Better CPU Useage
Improve Ranged Weapon Scripts To Be More CPU Friendly
Yet More Range Attack Script CPU Improvements
Cast Flag Tweaks
Tweak a few scripts to try and prevent useless error in log
Remove Some Undercity Scripts