(svn r8038) -Merge: the cpp branch. Effort of KUDr, Celestar, glx, Smoovius, stillunknown and pv2b.

src/engine_gui.cpp

@@ -24,6 +24,7 @@ static StringID GetEngineCategoryName(EngineID engine)
 			case RAILTYPE_ELECTRIC: return STR_8102_RAILROAD_LOCOMOTIVE;
 			case RAILTYPE_MONO:     return STR_8106_MONORAIL_LOCOMOTIVE;
 			case RAILTYPE_MAGLEV:   return STR_8107_MAGLEV_LOCOMOTIVE;
+			default: NOT_REACHED();
 		}
 	}