new syntax: processing and defaults
split ic2 processing a bit
move around recipes
load defaults first
Macerator
guard against cycles
don't calculate tier unless given an option
cycle detection in tiers, unfinished
More cycle detection
solve cycles in tier graph

* for items left unsolved, assign high tier values
* keep running until tiers can't go any lower
Merge branch 'processing' of github.com:k3rni/mctechtree

Conflicts:
	db/ic2/macerator.yml