* glib/dbus-gproxy.c (dbus_gproxy_manager_new): start
	implementing the proxy manager, didn't get very far.

	* dbus/dbus-bus.c (dbus_bus_add_match): new
	(dbus_bus_remove_match): new

	* glib/dbus-gproxy.c (dbus_gproxy_new_for_service): add a
	path_name argument; adjust the other not-yet-implemented
	gproxy constructors to be what I think they should be.