* dbus/dbus-message.c (dbus_message_append_args): fix doc comment,
	reported by Tony Houghton

	* test/test-service.c (main): test
	dbus_connection_get_object_path_data()

	* dbus/dbus-object-tree.c (find_handler): be sure we always init
	the exact_match
	(_dbus_object_tree_get_user_data_unlocked): new function used by
	dbus_connection_get_object_path_data()
	(do_register): add assertion test for get_user_data_unlocked
	(object_tree_test_iteration): more tests

	* dbus/dbus-connection.c (dbus_connection_get_object_path_data):
	new function from Dan Reed to let you get the user data from
	dbus_connection_register_object_path()