Merge branch 'master' into jgrpp

# Conflicts:
#	src/company_cmd.cpp
#	src/company_func.h
#	src/core/overflowsafe_type.hpp
#	src/engine.cpp
#	src/music/midifile.cpp
#	src/network/network_command.cpp
#	src/newgrf_debug_gui.cpp
#	src/newgrf_roadstop.h
#	src/newgrf_spritegroup.cpp
#	src/os/macosx/crashlog_osx.cpp
#	src/os/unix/crashlog_unix.cpp
#	src/pathfinder/yapf/yapf_common.hpp
#	src/road_gui.cpp
#	src/saveload/engine_sl.cpp
#	src/script/api/script_depotlist.cpp
#	src/script/api/script_roadtypelist.cpp
#	src/settings_gui.cpp
#	src/settings_type.h
#	src/strings.cpp
#	src/table/settings/game_settings.ini

src/disaster_vehicle.cpp

@@ -355,8 +355,8 @@ static bool DisasterTick_Ufo(DisasterVehicle *v)
 		v->state = 1;
 
 		uint n = 0; // Total number of targetable road vehicles.
-		for (const RoadVehicle *u : RoadVehicle::Iterate()) {
-			if (u->IsFrontEngine()) n++;
+		for (const Company *c : Company::Iterate()) {
+			n += c->group_all[VEH_ROAD].num_vehicle;
 		}
 
 		if (n == 0) {