1.0.0-pre7

Features:

• Added the /requiem possession start command
• Witches now always start attacking undead mobs by inflicting weakness potions
• Possessed entities now visibly swing their hands when their possessor does

Bug fixes:

• Milk buckets now properly give resistance to possessed skeletons
• Fixed a bunch of localization issues with requiem commands
• Fixed a duplication bug
• Fixed a crash when clearing potion effects