fix: disable enable_vbo
chg: hide seed in debug
chg: hid etile name when no debug
Fix leaking global in texture pack menu
Simplify loading of Android version of menu
clean
fix: warning
Mgv5 get ground level at point function. Fast spawn player version
Mgv5 1 up 1 down overgeneration for biome surface continuity
Optimise getTileInfo()

getTileInfo() ~1.5x faster
getSmoothLight ~2.0x faster
Optimise functions from CNodeDefManager and VoxelManipulator

CNodeDefManager::get()
VoxelManipulator::addArea()
Merge branch 'master' of github.com:minetest/minetest into merge

Conflicts:
	builtin/mainmenu/init.lua
	src/defaultsettings.cpp
serialize.h: use machine native byte swapping if available, fall-back to previous generic method if not (supported for GCC using endian.h, detection done in cmake) write/readARGB8() - just write 32-bit color in one op, instead of 4 1-byte ops cleanup: removed unneeded buffer init for some serialize-out functions use a #define for the fixed point factor in read/writeF1000()

nodemetadata.cpp, nodetimer.cpp
	optimzation: simpler deserialize node position method

staticobject.cpp:
	cleanup: use util/serialize.h inlines instead of its own de/serialization

serialize.cpp:
	minor optimization/cleanup: avoid generation of unneeded string temporary

CMakeLists.txt, cmake_config.h.in: detection of endian.h

config.h: added HAVE_ENDIAN_H

Commits due to feedback squashed

Signed-off-by: Craig Robbins <kde.psych@gmail.com>
return pointing_at in debug
Merge remote-tracking branch 'minetest/master'

Conflicts:
	src/CMakeLists.txt
fix: cmake HAVE_ENDIAN_H