Allow non-string arguments for minetest.is_yes()
Use the Settings Lua interface to read world.mt
Use engine.is_yes() in mainmenu
Fix bug: texture pack not overriding default menu textures
Add offset to automatic_face_movement_dir
Fix hotbar padding at bottom
Change mainmenu texture handling + small misc changes

Texture names must now be escaped in formspec elements image[],
background[], image_button[], image_button_exit[].

Instead of special-case handling of texture loading (and unloading
which was missing) in guiFormSpecMenu.cpp, use the newly created
ISimpleTextureSource interface which is a minimal subset of
ITextureSource. There is an implementation of this interface
used by GUIEngine (MenuTextureSource).

Fix an off-by-one bug in unescape_string; it caused requests for a
texture called "\0".
Always use builtin JThread library
Add configurable PRAGMA synchronous =
Fog depend on humidity
Use cached "weather" setting
Fix comments about length of server step

6b927229f5f9cb9a8163ecec482160975199fa0f Changed the default server step
from 0.05s to 0.1s
Weather: Clean up getHeat/getHumidity somewhat
Fix some warnings and other minor details
Fix null dereference in weather update functions
Add option to scale image to percentage values
Fix compiling issue of MSVC
Re-fix hud_change stat argument retrieval

Conflicts:
	src/script/lua_api/l_object.cpp
Add curl, freetype and luaJIT to CMAKE_BUILD_INFO
Lower the default max_users from 100 to 15