Moves this directory to the given destination. Returns a Folder object
        that represents the moved directory.

def rename_to(self, destination_name):
        """
        Moves this directory to the given destination. Returns a Folder object
        that represents the moved directory.
        """
        target = self.parent.child_folder(destination_name)
        logger.info("Rename %s to %s" % (self, target))
        shutil.move(self.path, unicode(target))
        return target