Super-powerful custom items and crafting recipes.
- Nested chains now support their own Conditions, Mutators, Filters, and generic arguments like 'chance', 'repeat', 'cooldown', etc.
- Fixed brew trigger, again (Thanks OfTeN!)
- Fixed custom run_order not working
- Added run_order argument to all effects to override the default order in which effects run. This isn't needed in most circumstances and may cause unintended behaviour if used incorrectly, however it can be used (for example) to make add_damage run before damage_multiplier.