* libnautilus-extensions/.cvsignore: Ignore the new files that
	are generated by Gene's new .idl.

	* libnautilus-extensions/nautilus-debug.h:
	* libnautilus-extensions/nautilus-debug.c:
	(nautilus_get_available_file_descriptor_count):
	Changed the interface on Pavel's excellent new debugging function.

	* libnautilus-extensions/nautilus-directory.c:
	(file_open_callback), (file_close_callback), (open_and_close_one),
	(nautilus_self_check_directory): Added some checks for GNOME VFS
	in here. This is a bad place for them but it's better than not
	having them at all.
	* libnautilus-extensions/nautilus-icon-factory.c:
	(nautilus_self_check_icon_factory): Updated self checks so they
	work again. John didn't notice that he needed to fix these when
	he added the 20-pixel size icon to the standard sizees.