Stone anvil is no longer able to select Copper tool plans
Merge pull request #512 from ntwitch/StoneAnvilReq

Stone anvil is no longer able to select Copper tool plans
Fixed removing logs from a lit pit kiln. Refactored to TEPottery
Easier pit kiln creation in creative mode.

Straw and logs are not subtracted from inventory. Kiln automatically fills to max when adding straw and logs.