Cacti Drop Tweak has been added back in as we found a solution for why
it wasn't working before (related to Bookshelf Drop Tweak and Ender
Chest Drop Tweak). Apparantly, the code fails when we store an ItemStack
that is to replace a block's harvested drops. Instead, we have to store
the Block or the Item that is to replace a block's harvested drop and
create a NEW ItemStack using this Block or Item every time that piece of
code is called.

Other changes: vanilla Cauldron recipe removed and replaced by the
recipe that creates the WaterCauldron.