* MAINTAINERS: Changed to the new Nautilus list instead of the
	old secret list.

	* components/notes/ntl-notes.c (notes_load_metainfo):
	* src/file-manager/fm-directory-view.c
	(fm_directory_view_load_uri), (metadata_ready_callback):
	* src/ntl-uri-map.c (got_metadata_callback),
	(nautilus_navigation_info_new):
	Change calls to use new API, but not to use any of the new features,
	which are not yet implemented.

	* libnautilus-extensions/nautilus-directory.h:
	* libnautilus-extensions/nautilus-directory.c
	* libnautilus-extensions/nautilus-directory-private.h:
	* libnautilus-extensions/nautilus-directory-async.c
	* libnautilus-extensions/nautilus-file.c
	* libnautilus-extensions/nautilus-file.h:
	Added the new API and moved functions around a bit to prepare
	for the new feature needed by Maciej for getting a list of files.

	* libnautilus-extensions/nautilus-file-attributes.h:
	Added an attribute constant for MIME type.