Merge branch 'master' into jgrpp

# Conflicts:
#	src/company_cmd.cpp
#	src/core/overflowsafe_type.hpp
#	src/economy.cpp
#	src/engine_base.h
#	src/ground_vehicle.cpp
#	src/group_gui.cpp
#	src/industry_cmd.cpp
#	src/industry_gui.cpp
#	src/newgrf_commons.cpp
#	src/newgrf_engine.cpp
#	src/newgrf_industries.cpp
#	src/newgrf_object.cpp
#	src/newgrf_roadstop.cpp
#	src/newgrf_station.cpp
#	src/rail_gui.cpp
#	src/road_cmd.h
#	src/road_gui.cpp
#	src/saveload/afterload.cpp
#	src/script/api/script_log.cpp
#	src/script/api/script_log.hpp
#	src/settings_gui.cpp
#	src/settingsgen/settingsgen.cpp
#	src/station_cmd.cpp
#	src/station_cmd.h
#	src/station_gui.cpp
#	src/strgen/strgen.cpp
#	src/string_func.h
#	src/string_type.h
#	src/table/settings/network_private_settings.ini
#	src/tests/math_func.cpp
#	src/textfile_gui.cpp
#	src/timetable_gui.cpp
#	src/town_cmd.cpp
#	src/vehicle.cpp
#	src/waypoint_cmd.cpp
#	src/waypoint_cmd.h
#	src/widgets/dropdown.cpp

src/tgp.cpp

@@ -821,7 +821,7 @@ static void HeightMapSmoothCoastInDirection(int org_x, int org_y, int dir_x, int
 	 * Soften the coast slope */
 	for (depth = 0; IsValidXY(x, y) && depth <= max_coast_Smooth_depth; depth++, x += dir_x, y += dir_y) {
 		h = _height_map.height(x, y);
-		h = std::min<uint>(h, h_prev + (4 + depth)); // coast softening formula
+		h = static_cast<Height>(std::min<uint>(h, h_prev + (4 + depth))); // coast softening formula
 		_height_map.height(x, y) = h;
 		h_prev = h;
 	}