* bus/connection.c: (bus_connection_foreach):
	* bus/connection.h:
	Add new bus_connection_foreach function.

	* bus/driver.c: (send_one_message), (bus_driver_broadcast_message):
	Add function that broadcasts a message to all clients.

	(bus_driver_send_service_created), (bus_driver_handle_hello),
	(bus_driver_send_welcome_message),
	(bus_driver_handle_list_services), (bus_driver_message_handler):
	Implement functions that take care of listing services, and notifying
	clients when new services are created.

	* bus/services.c: (bus_services_list):
	* bus/services.h:
	Add new function that returns an array of strings with the currently
	registered services.

	* glib/dbus-glib.h:
	* glib/dbus-gmain.c:
	Update copyright year.