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/command_type.h

@@ -364,6 +364,7 @@ enum Commands {
 	CMD_SET_VEHICLE_ON_TIME,          ///< set the vehicle on time feature (timetable)
 	CMD_AUTOFILL_TIMETABLE,           ///< autofill the timetable
 	CMD_AUTOMATE_TIMETABLE,           ///< automate the timetable
+	CMD_TIMETABLE_SEPARATION,         ///< auto timetable separation
 	CMD_SET_TIMETABLE_START,          ///< set the date that a timetable should start
 
 	CMD_OPEN_CLOSE_AIRPORT,           ///< open/close an airport to incoming aircraft