2003-05-13  James Willcox  <jwillcox@gnome.org>

	* configure.in:
	* bus/activation.c: (bus_activation_service_created),
	(bus_activation_activate_service):
	* bus/driver.c: (bus_driver_send_service_deleted),
	(bus_driver_send_service_created), (bus_driver_send_service_lost),
	(bus_driver_send_service_acquired),
	(bus_driver_send_welcome_message),
	(bus_driver_handle_list_services):
	* bus/session.conf.in:
	* dbus/dbus-bus.c: (dbus_bus_acquire_service),
	(dbus_bus_service_exists), (dbus_bus_activate_service):
	* dbus/dbus-bus.h:

	Add some convenience API which lets you activate a service, and did a
	bunch of s/0/DBUS_TYPE_INVALID/ in calls to dbus_message_append_args()
	and dbus_message_get_args()