Move map generator stuff around a bit and generate coal and iron deep underground
Optimize leaf decay based on EnvRef:find_node_near
papyrus generation
Add cactus generation, desert_sand and desert_stone
Digging desert stone gives desert stone
Tune cactus generation
Generate dry shrubs on deserts
Generate slightly less shrubs
Add 'flammable' group to suitable nodes (and a bit of other things)
Add fire. Lava can cause it, and you can /giveme fire:basic_flame.
Rework falling node code (now based on the falling_node group)
Make falling nodes fall into all non-walkable nodes
Attempt to balance cutting of wood with axes vs. swords
Tune ore generation
Re-implement nyancat generation in Lua (they don't occur in the exact same spots, though)
Improve style of item descriptions
Fix typo in nyan cat generation
Use new node metadata API for chests and furnaces; use cisoun's textures
Fire visualization in furnace menu
Proper top/bottom textures for active furnace