Ore Processing

Make ore grinder xyx yyy yyy where x is stick, y is cobble. Right click
with ore blocks, it will grind them into crushed ore. Right click with
crushed ore on water, it will wash it and make "refined" ore, which can
be smelted. Bronze is now 8 refined copper + 1 refined tin, makes
refined bronze which can be smelted.
Merge branch 'Mills's-Branch'
Merge branch 'master' into Mills's-Branch