Merge branch 'master' into jgrpp

# Conflicts:
#	cmake/CompileFlags.cmake
#	src/3rdparty/squirrel/squirrel/sqclosure.h
#	src/3rdparty/squirrel/squirrel/sqobject.h
#	src/3rdparty/squirrel/squirrel/sqvm.h
#	src/aircraft.h
#	src/airport_gui.cpp
#	src/blitter/32bpp_sse_func.hpp
#	src/blitter/null.hpp
#	src/bridge_gui.cpp
#	src/build_vehicle_gui.cpp
#	src/cargotype.h
#	src/cheat_gui.cpp
#	src/command.cpp
#	src/command_func.h
#	src/company_gui.cpp
#	src/console_gui.cpp
#	src/date_gui.cpp
#	src/depot_gui.cpp
#	src/dock_gui.cpp
#	src/economy.cpp
#	src/error_gui.cpp
#	src/fileio.cpp
#	src/fios.cpp
#	src/fios_gui.cpp
#	src/fontcache/spritefontcache.h
#	src/framerate_gui.cpp
#	src/game/game_text.cpp
#	src/gamelog.cpp
#	src/genworld_gui.cpp
#	src/gfx_layout_fallback.cpp
#	src/group_gui.cpp
#	src/highscore_gui.cpp
#	src/hotkeys.cpp
#	src/industry_cmd.cpp
#	src/industry_gui.cpp
#	src/landscape.cpp
#	src/main_gui.cpp
#	src/misc_cmd.cpp
#	src/misc_gui.cpp
#	src/network/core/tcp_game.cpp
#	src/network/core/udp.cpp
#	src/network/network_chat_gui.cpp
#	src/network/network_content_gui.cpp
#	src/network/network_gui.cpp
#	src/network/network_server.cpp
#	src/network/network_server.h
#	src/newgrf_airport.cpp
#	src/newgrf_airport.h
#	src/newgrf_airporttiles.cpp
#	src/newgrf_airporttiles.h
#	src/newgrf_animation_base.h
#	src/newgrf_canal.cpp
#	src/newgrf_commons.h
#	src/newgrf_config.cpp
#	src/newgrf_debug_gui.cpp
#	src/newgrf_engine.cpp
#	src/newgrf_engine.h
#	src/newgrf_generic.cpp
#	src/newgrf_gui.cpp
#	src/newgrf_house.cpp
#	src/newgrf_house.h
#	src/newgrf_industries.cpp
#	src/newgrf_industries.h
#	src/newgrf_industrytiles.cpp
#	src/newgrf_industrytiles.h
#	src/newgrf_object.cpp
#	src/newgrf_object.h
#	src/newgrf_railtype.cpp
#	src/newgrf_railtype.h
#	src/newgrf_roadstop.cpp
#	src/newgrf_roadstop.h
#	src/newgrf_roadtype.cpp
#	src/newgrf_roadtype.h
#	src/newgrf_spritegroup.cpp
#	src/newgrf_spritegroup.h
#	src/newgrf_station.cpp
#	src/newgrf_station.h
#	src/newgrf_town.cpp
#	src/newgrf_town.h
#	src/news_gui.cpp
#	src/object_gui.cpp
#	src/order_gui.cpp
#	src/os/macosx/crashlog_osx.cpp
#	src/os/unix/crashlog_unix.cpp
#	src/os/windows/crashlog_win.cpp
#	src/os/windows/win32.cpp
#	src/os/windows/win32_main.cpp
#	src/pathfinder/npf/npf.cpp
#	src/pathfinder/npf/queue.cpp
#	src/rail_cmd.cpp
#	src/rail_gui.cpp
#	src/road_gui.cpp
#	src/roadveh.h
#	src/saveload/saveload.cpp
#	src/screenshot.cpp
#	src/script/api/script_text.hpp
#	src/settings.cpp
#	src/settings_gui.cpp
#	src/settings_internal.h
#	src/settings_table.cpp
#	src/signs_cmd.cpp
#	src/signs_gui.cpp
#	src/smallmap_gui.cpp
#	src/smallmap_gui.h
#	src/spriteloader/grf.hpp
#	src/station_cmd.cpp
#	src/station_gui.cpp
#	src/station_map.h
#	src/statusbar_gui.cpp
#	src/stdafx.h
#	src/strgen/strgen.cpp
#	src/table/newgrf_debug_data.h
#	src/terraform_gui.cpp
#	src/timer/timer_game_calendar.cpp
#	src/timer/timer_window.cpp
#	src/town.h
#	src/town_cmd.cpp
#	src/town_gui.cpp
#	src/train_gui.cpp
#	src/transparency_gui.cpp
#	src/vehicle_gui.cpp
#	src/water_cmd.cpp
#	src/waypoint_cmd.cpp
#	src/widget.cpp
#	src/widget_type.h
#	src/widgets/dropdown.cpp
#	src/widgets/rail_widget.h
#	src/widgets/terraform_widget.h
#	src/window.cpp
#	src/window_gui.h

src/aircraft.h

@@ -91,30 +91,30 @@ struct Aircraft FINAL : public SpecializedVehicle<Aircraft, VEH_AIRCRAFT> {
 	/** We want to 'destruct' the right class. */
 	virtual ~Aircraft() { this->PreDestructor(); }
 
-	void MarkDirty();
-	void UpdateDeltaXY();
-	ExpensesType GetExpenseType(bool income) const { return income ? EXPENSES_AIRCRAFT_REVENUE : EXPENSES_AIRCRAFT_RUN; }
-	bool IsPrimaryVehicle() const                  { return this->IsNormalAircraft(); }
-	void GetImage(Direction direction, EngineImageType image_type, VehicleSpriteSeq *result) const;
+	void MarkDirty() override;
+	void UpdateDeltaXY() override;
+	ExpensesType GetExpenseType(bool income) const override { return income ? EXPENSES_AIRCRAFT_REVENUE : EXPENSES_AIRCRAFT_RUN; }
+	bool IsPrimaryVehicle() const override                  { return this->IsNormalAircraft(); }
+	void GetImage(Direction direction, EngineImageType image_type, VehicleSpriteSeq *result) const override;
 	Direction GetMapImageDirection() const { return this->First()->direction; }
-	int GetDisplaySpeed() const    { return this->cur_speed; }
-	int GetDisplayMaxSpeed() const { return this->vcache.cached_max_speed; }
-	int GetSpeedOldUnits() const   { return this->vcache.cached_max_speed * 10 / 128; }
-	int GetCurrentMaxSpeed() const { return this->GetSpeedOldUnits(); }
-	Money GetRunningCost() const;
+	int GetDisplaySpeed() const override    { return this->cur_speed; }
+	int GetDisplayMaxSpeed() const override { return this->vcache.cached_max_speed; }
+	int GetSpeedOldUnits() const            { return this->vcache.cached_max_speed * 10 / 128; }
+	int GetCurrentMaxSpeed() const override { return this->GetSpeedOldUnits(); }
+	Money GetRunningCost() const override;
 
-	bool IsInDepot() const
+	bool IsInDepot() const override
 	{
 		assert(this->IsPrimaryVehicle());
 		return (this->vehstatus & VS_HIDDEN) != 0 && IsHangarTile(this->tile);
 	}
 
-	bool Tick();
-	void OnNewDay();
-	void OnPeriodic();
-	uint Crash(bool flooded = false);
-	TileIndex GetOrderStationLocation(StationID station);
-	ClosestDepot FindClosestDepot();
+	bool Tick() override;
+	void OnNewDay() override;
+	void OnPeriodic() override;
+	uint Crash(bool flooded = false) override;
+	TileIndex GetOrderStationLocation(StationID station) override;
+	ClosestDepot FindClosestDepot() override;
 
 	/**
 	 * Check if the aircraft type is a normal flying device; eg