Return an html admin link with the object's name as text. If the 
        object doesn't exist, return "(deleted)".

def _object_name_html(self):
        """Return an html admin link with the object's name as text. If the 
        object doesn't exist, return "(deleted)".
        """
        if self.presently.exists:
            url = self.url()
            return "<a href=\"%s\">%s</a>" % (url,
                                              unicode(self.get_object()),)
        else:
            return "(deleted)"