Fixed bug 2802 (copy all metadata, not just certain items). There
	are still a few loose ends but it's basically there.

	Fixed bug 5296 (Hardware overview should be localized).
	Fixed bug 5299 (Spacing problems with sizes in bytes).

	* libnautilus-extensions/nautilus-directory-metafile.c:
	(get_file_node): Used a local variable for the hash table to make
	the code more readable because the full expression is too long.
	Removed the half-baked attempt at using xmlNode objects to
	represent "changes" data, which no longer seems a likely
	direction.
	(nautilus_directory_metafile_destroy): Local variable for hash
	table.
	(nautilus_directory_get_file_metadata): Return NULL, not FALSE,
	since the function returns char *, not gboolean.
	(nautilus_directory_rename_file_metadata): Local variable for hash
	table. Also added a FIXME for a case that won't work.
	(apply_file_changes): Broke out so it can be used elsewhere.
	(apply_one_file_changes): This is now the ve...