Merge branch 'improved_breakdowns' into jgrpp

# Conflicts:
#	src/vehiclelist.cpp

src/saveload/afterload.cpp

@@ -159,7 +159,7 @@ static void ConvertTownOwner()
 				if (GB(_m[tile].m5, 4, 2) == ROAD_TILE_CROSSING && HasBit(_m[tile].m3, 7)) {
 					_m[tile].m3 = OWNER_TOWN;
 				}
-				/* FALL THROUGH */
+				FALLTHROUGH;
 
 			case MP_TUNNELBRIDGE:
 				if (_m[tile].m1 & 0x80) SetTileOwner(tile, OWNER_TOWN);

src/saveload/company_sl.cpp

@@ -186,7 +186,7 @@ void AfterLoadCompanyStats()
 						}
 					}
 				}
-				/* FALL THROUGH */
+				FALLTHROUGH;
 
 			case MP_OBJECT:
 				if (GetWaterClass(tile) == WATER_CLASS_CANAL) {

src/saveload/vehicle_sl.cpp

@@ -433,8 +433,8 @@ void AfterLoadVehicles(bool part_of_load)
 				RoadVehicle *rv = RoadVehicle::From(v);
 				rv->roadtype = HasBit(EngInfo(v->First()->engine_type)->misc_flags, EF_ROAD_TRAM) ? ROADTYPE_TRAM : ROADTYPE_ROAD;
 				rv->compatible_roadtypes = RoadTypeToRoadTypes(rv->roadtype);
-				/* FALL THROUGH */
 			}
+			FALLTHROUGH;
 
 			case VEH_TRAIN:
 			case VEH_SHIP: