Remove mapgen_air alias
Change hoe_on_use to farming.hoe_on_use, for use and override by mods.
Add and use the stick group
Remove trailing tabs from empty lines in stairs
Fix stone and wooden axe being slower than hand
Move sapling growing and grass adding/removing ABMs to Lua.
Fix grass adding/removing ABM.
Fix possible crash with grass ABM.
Merge remote-tracking branch 'upstream/master' into weather
weather dirt