Nothing kills a laugh faster than seeing actors sweat "Operation Mincemeat" (Credit: Julieta Cervantes) “Dead Outlaw” — now there’s a musical that knows how to put a corpse on stage. The musical about the well-traveled mummy of small-time crook Elmer McCurdy opens next month on Broadway after a run downtown last year. The great late Charles Ludlam also knew how to make full use of the riotous Grand Guignol effect of a corpse(s) in such Ridiculous Theatre classics as “Artificial Jungle” and “