code: public BusItineraryHalt addBusHalt(UUID id, String name, BusItineraryHaltType type) {
  		return this.addBusHalt(id, name, type, -1);
  	}
docs: Add a bus halt inside the bus itinerary.
  
  <p>The insertion index is computed automatically
  
  @param id is the identifier of the bus halt.
  @param name is the name of the bus halt
  @param type is the type of the bus halt.
  @return the added bus halt, otherwise <code>null</code>