Fix crash when doors are placed under unknown nodes.
Share a can_dig among doors, that does not crash on nil-player.
Only set can_dig if we actually protect the door.

Add mouth, remove jaw shadow, shade eyesockets.
Darker shading for spine and rotate texture using ^[transform2
instead of inverting texture.
Use 'node sound gravel defaults' for sounds.

Add a global 'intersects protection' function to functions.lua for
checking if a specified volume intersects with a protected volume.
A 3D lattice of points are checked with an adjustable interval.
Add a global 'sapling on place' function to avoid duplicated code in
nodes.lua.

Add 'bones_mode' setting to minetest.conf -> Modes: bones, drop, keep
Remove table 'bones'
Add minetest.conf.example description
Remove protection check from may_replace

Add 'record_protection_violation()'

Removing the node above was an error and is unnecessary

This makes register_trapdoor act the same as the register_door.
If `name` isn't prefixed, it will be prefixed with "doors:".

Nyancats are independent in the default mod. Nothing else uses them or
their code. Separating it into a separate mod makes it easier for
subgames to remove them. It also makes it easier for a mod to depend
on nyancats, as lots of subgames don't have them.

Default/mapgen.lua: Register biomes, ores and decorations in
singlenode mapgen. These were never disabled anyway because
singlenode was removed from the world creation menu.

* Unused variables
* Unused values (assigned to variables, but overwritten before use)
* Defining already defined variables instead of reassigning to them.

No longer require night to be skipped for resawn position to be saved
Remove constant beds.read_spawns() calls when a player joins as this
is only required once

Instead of using voxelmanip use 'find nodes in area' instead

Remove spaces inside curly brackets
Split lines over 90 columns

- Only remove the TNT craft recipe, tnt:tnt node and the ABM
- Leave tnt:tnt_burning available for explosions in 3rd party mods

- Documentation for sethome.get, sethome.set and sethome.go

Preserve overlapping registrations of large and small clusters
below y = -64 but now extend the small clusters up to y = 0 (the
previous highest iron ore level) in a similar to way to coal

Each ore's rarity is equal to that occuring below y= -1024

Re-order registrations
Add and improve comments
Change sand blob ymax to 0 as sand does not always rise above 0
Remove dirt blobs from sandstone as it is unsuitable for
many sandstone biomes and ugly in stony sandstone desert
Change ymax of first iron region to 0

- Placing liquid inside a protected area no longer returns an empty bucket
- Remove on_place function, tidy up code, return proper itemstack
- Shorten code (changes from HybridDog/patch-35)

- Global functions sethome.set(name, pos) , sethome.get(name) and sethome.go(name)
- Tidy: trim coords to one decimal place and write to table and output table in one go.
- Add error checking
- Add t4im's homepos loader

When waterlilies are placed near river water source make flowing river
water remove waterlilies instead of flowing around them in an ugly way