What? No “Hanky Panky”? Is this some kind of a joke? Given how obsessive her fans are, it’s a thankless task for Madonna toassemble a two-CD hit collection. But from the opening one-two of “HungUp” and “Music,” two of her best ever, Celebration kicks off with purebliss and never lets up. It’s a dizzying, nonchronological spin through the Madonna years, years it makes you feel lucky to be living through.Her hitmaking genius is unmatched and — with the new Eurocheeseblast “Celebration” and the Lil Wayne duet “Revolver” — undiminished. It’s almost enough to make you forget that they left off”Angel,” which is just plain crazypants.