Re-add obsidian mixing in the Smeltery
Merge branch '16x' of https://github.com/SlimeKnights/TinkersConstruct into 1.6.4
Merge branch '16x' of https://github.com/SlimeKnights/TinkersConstruct into 1.6.4
Move block placement default to HarvestTool
Fix raw aluminum recipe, exo-armor crafting disabled by default
Changed rings and amulets into higher level heart canisters