code: public BusItineraryHalt insertBusHaltAfter(BusItineraryHalt afterHalt, UUID id, BusItineraryHaltType type) {
  		return insertBusHaltAfter(afterHalt, id, null, type);
  	}
docs: Insert newHalt after afterHalt in the ordered list of {@link BusItineraryHalt}.
  
  @param afterHalt the halt where insert the new halt
  @param id id of the new halt
  @param type the type of bus halt
  
  @return the added bus halt, otherwise <code>null</code>