that is compatible with async. metadata reading.

	* components/notes/ntl-notes.c:
	(notes_load_metainfo): Changed to use nautilus_file_call_when_ready
	to wait for the metadata. Also fixed a bug that was causing an assert
	inside the call to gtk_editable_insert_text.
	(main): Made warnings and criticals stop in the debugger.

	* libnautilus/nautilus-directory.c:
	* libnautilus/nautilus-directory.h:
	(nautilus_directory_call_when_ready): Renamed the call to indicate
	it can wait for more than just metadata. For now it does only wait
	for metadata, though.
	(nautilus_directory_cancel_callback): Renamed this too.

	* libnautilus/nautilus-file.c:
	(nautilus_file_call_when_ready), (nautilus_file_cancel_callback):
	Made a corresponding call for the metadata of a single file.

	* libnautilus/nautilus-gdk-extensions.c:
	* src/nautilus-index-title.c:
	Formatting changes.

	* libnautilus/nautilus-metadata.h:
	Clarified that ANNOTATION is a per-file piece of metadata.

	* src/ntl-uri-map.c:
	* src/file-manager/fm-directory-view.c:
	Use new names of calls.

	* src/file-manager/fm-icon-view.c:
	* src/file-manager/fm-list-view.c:
	Added comment.