Merge branch 'Mills's-Branch'
Tweaks

Villages now spawn in more biomes, javelins drop bits when they break,
and they sometimes drop themselves when they hit enemies. No more tin
outside tin isles. Removed stone pickaxes.
Merge remote-tracking branch 'origin/master' into Matt's-Branch
badWood

Made a wooden pick that's less efficient than the vanilla one, so to
reduce its usefulness in gathering large quantities of stone.
Merge branch 'master' into Mills's-Branch