Initial commit
Add base block and write README
Add stair and slab. Add dependence on stairs mod.
Add .gitignore
Merge branch 'black_brick'

Merge stable code.
Add black fence.
Initial commit. Add README.
Copy xyz xpanes code.
Correct base block. Correct functions update_wall and update_nearby.
Correct wall model & texture.
Fixed bug with variable "cnt".

Forgot to delete it.
Fixed bug with single pillar and full wall.
Fixed wall model.
Add vertical checks as in Minecraft.
Merge branch 'black_brick'