Pinetree (by sfan5, from mg mapgen) lua generation and sapling ABM. Add checks for ignore to other trees
Screwdriver rewrite
Cleanup
* Remove unused variables
* Fix wearing out of screwdriver
* Move magic numbers into constants
* Scale down texture
Only allow rotating nodes that could be dug
Give 4 obsidianbrick for 4 obsidian
Fix typo in furnace.lua