Merge branch 'auto_timetables-sx' into jgrpp

# Conflicts:
#	src/lang/english.txt
#	src/saveload/afterload.cpp
#	src/saveload/extended_ver_sl.cpp
#	src/settings_gui.cpp
#	src/settings_type.h
#	src/table/company_settings.ini
#	src/vehicle.cpp

src/widgets/timetable_widget.h

@@ -26,6 +26,7 @@ enum VehicleTimetableWidgets {
 	WID_VT_RESET_LATENESS,              ///< Reset lateness button.
 	WID_VT_AUTOFILL,                    ///< Autofill button.
 	WID_VT_AUTOMATE,                    ///< Automate button.
+	WID_VT_AUTO_SEPARATION,             ///< Auto separation button.
 	WID_VT_EXPECTED,                    ///< Toggle between expected and scheduled arrivals.
 	WID_VT_SHARED_ORDER_LIST,           ///< Show the shared order list.
 	WID_VT_ARRIVAL_DEPARTURE_SELECTION, ///< Disable/hide the arrival departure panel.