* clutter/clutter-scriptable.[ch]: Rename ::set_name and ::get_name
	to ::set_id and ::get_id, to avoid potential confusion with the
	ClutterActor:name property.

	* clutter/clutter-script.h:
	* clutter/clutter-script.c (clutter_script_construct_object): Use
	clutter_scriptable_set_id().

	(clutter_get_script_id): Add a public function to retrieve the ID
	used in the UI definition files from an object.

	* clutter/clutter-actor.c: Do not set the name of the actor with
	the ID set in the UI definition files.

	* tests/test-script.c: Test clutter_get_script_id().

	* clutter.symbols: Update with the new symbols.