* bus/driver.c: (create_unique_client_name),
	(bus_driver_handle_hello):
	Don't take a name, just use a numeric id to identify
	each client.

	* dbus/Makefile.am:
	* dbus/dbus-bus.c: (dbus_bus_register_client),
	(dbus_bus_acquire_service), (dbus_bus_service_exists):
	* dbus/dbus-bus.h:
	Add new convenience functions for communicating with the bus.

	* dbus/dbus-message.h:

	* dbus/dbus-protocol.h:
	Fix a typo.