As Nineties culture continues to be all the rave, please spare a thought for the women who are being mocked for wanting to dance like they used to. And isn’t it funny, says Helen Down , that the ‘dad dancers’ of this generation are getting a free pass S o Madonna , queen of reinvention, is back. Yes, again. And this time she’s not just coming out fighting, but also raving: “To rave is an art,” she said in her announcement about the July release of her new album Confessions II . “It's about