Fix possible stacking of books in bookshelf
Original author: @MT-Modder
Allow the group book to be placed into bookshelfs
Dont dry out soil if unloaded blocks are nearby
Move leafdecay doc to game_api.txt
Set param2 to 1 if player places leaves
Fix visibility of global/local dye tables
Move doc for dyes to game_api.txt
Add a minetest.conf.example with all available settings
Remove remains of weather
Remove remains of finite liquids from bucket mod
This reverts commit 79856c914d5b9d3eb43bec78840ee811880b30ff.
Rewrite furnace
* Move furnace related code into furnace.lua
* Move duplicated code into functions
* Rewrite ABM:
	* Easier to follow strcuture (no returns in the middle)
	* No unnecessary calls to get_craft_result
	* Split logic and "visual feedback" (a bit)
	* Fewer calls to meta:set and meta:get
	* Better feedback on the current state of the furnace
Correct node definitons for pine saplings and pine needles
Use an overlay over default_dirt.png for soil
Default biomes for mgv5/mgv7. Add note about possible future 'biomes' mg_param