Director Daniel Fish delivers a glorious and terrifying production of Rodgers and Hammerstein’s groundbreaking 1943 musical “Oklahoma!” at St. Ann’s Warehouse in Brooklyn, completely deconstructing this canonical and totemic masterpiece of American musical theatre by stripping it of its corn and highlighting the darker themes of violence and injustice that have always been simmering underneath.  Sexually charged and presented with a striking naturalism, this masterful new production is a revelation.