Merge branch 'master' into jgrpp-beta

# Conflicts:
#	src/company_cmd.cpp
#	src/economy.cpp
#	src/lang/swedish.txt
#	src/network/network_command.cpp
#	src/news_gui.cpp
#	src/saveload/saveload.h
#	src/script/api/script_list.cpp
#	src/video/cocoa/cocoa_v.mm
#	src/video/sdl2_v.cpp

src/game/game_info.cpp

@@ -54,7 +54,7 @@ template <> const char *GetClassName<GameInfo, ST_GS>() { return "GSInfo"; }
 {
 	/* Get the GameInfo */
 	SQUserPointer instance = nullptr;
-	if (SQ_FAILED(sq_getinstanceup(vm, 2, &instance, 0)) || instance == nullptr) return sq_throwerror(vm, "Pass an instance of a child class of GameInfo to RegisterGame");
+	if (SQ_FAILED(sq_getinstanceup(vm, 2, &instance, nullptr)) || instance == nullptr) return sq_throwerror(vm, "Pass an instance of a child class of GameInfo to RegisterGame");
 	GameInfo *info = (GameInfo *)instance;
 
 	SQInteger res = ScriptInfo::Constructor(vm, info);