Merge branch 'master' into jgrpp

# Conflicts:
#	src/autoreplace_cmd.cpp
#	src/build_vehicle_gui.cpp
#	src/cargotype.cpp
#	src/economy.cpp
#	src/engine_gui.cpp
#	src/industry_cmd.cpp
#	src/industry_gui.cpp
#	src/linkgraph/linkgraph_gui.h
#	src/linkgraph/refresh.cpp
#	src/linkgraph/refresh.h
#	src/newgrf.cpp
#	src/newgrf_airporttiles.h
#	src/newgrf_roadstop.cpp
#	src/newgrf_station.cpp
#	src/newgrf_station.h
#	src/order_base.h
#	src/order_cmd.cpp
#	src/order_func.h
#	src/order_gui.cpp
#	src/pathfinder/pathfinder_type.h
#	src/saveload/afterload.cpp
#	src/subsidy_base.h
#	src/vehicle_cmd.cpp
#	src/vehicle_gui.cpp
#	src/vehicle_gui_base.h

src/engine_base.h

@@ -102,7 +102,7 @@ struct Engine : EnginePool::PoolItem<&_engine_pool> {
 	 * Usually a valid cargo is returned, even though the vehicle has zero capacity, and can therefore not carry anything. But the cargotype is still used
 	 * for livery selection etc..
 	 *
-	 * Vehicles with CT_INVALID as default cargo are usually not available, but it can appear as default cargo of articulated parts.
+	 * Vehicles with INVALID_CARGO as default cargo are usually not available, but it can appear as default cargo of articulated parts.
 	 *
 	 * @return The default cargo type.
 	 * @see CanCarryCargo