When looking into Lebanese art history and the key players from the fabled Golden Age that impacted today’s art scene, Helen Khal’s name is unlikely to come up. The Sursock Museum’s latest show, “At the Still Point of The Turning World, There Is the Dance,” seeks to spotlight this little-remembered artist, writer and critic, who was at the center of an artistic generation in the ’60s and ’70s, and unwittingly ...