Merge branch 'improved_breakdowns' into jgrpp

# Conflicts:
#	src/vehiclelist.cpp

src/depot_gui.cpp

@@ -447,7 +447,8 @@ struct DepotWindow : Window {
 			switch (this->type) {
 				case VEH_TRAIN:
 					if (wagon) return MODE_ERROR;
-					/* FALL THROUGH */
+					FALLTHROUGH;
+
 				case VEH_ROAD:
 					if (xm <= this->flag_width) return MODE_START_STOP;
 					break;