Merge branch 'master' of https://github.com/erlehmann/minetest-delta.git into upstream_merge

Conflicts:
	.gitignore
	CMakeLists.txt
	data/heart.png
	src/CMakeLists.txt
	src/game.cpp
	src/guiMainMenu.cpp
	src/inventory.cpp
	src/map.cpp
	src/mapblock.cpp
	src/mapnode.cpp
	src/mapnode.h
	src/materials.cpp
	src/server.cpp

Signed-off-by: Sebastian Rühl <bahamada_basti@yahoo.de>

src/CMakeLists.txt

@@ -108,6 +108,7 @@ set(minetest_SRCS
 	clouds.cpp
 	clientobject.cpp
 	guiMainMenu.cpp
+	guiKeyChangeMenu.cpp
 	guiMessageMenu.cpp
 	guiTextInputMenu.cpp
 	guiInventoryMenu.cpp