Leveled nodebox
Change ContentFeatures array to a vector
Remove support for common mods
Fix lighting bug caused by disappearing lava
Randomly choose singleplayer port
Add set_breath and get_breath to lua API.
Make range of tools configureable
Add liquid_range to nodedef
Add an option to disable object <-> object collision for Lua entities
Bump protocol version
Fix light issue in 6d facedir.