“Dancing on Thatcher’s grave” was a classic Ed moment. Keir Morrison’s 15 minutes of infamy did for his fledgling career, but where is he now? The militant trade unionist is busy helping out his brother Lachlan, for whom Labour bigwigs are trying to stitch up a seat in Sherwood. Jack Dromey, Luciana Berger and Owen Jones are among his big name backers. Judge a man by the company he keeps…