A joyful noise thunders through Circle in the Square theater, as Broadway welcomes a smashing revival of Once On This Island. Michael Arden’s exuberant staging of this 1990 musical fairy tale set on a Caribbean island conjures a spell that is devastatingly timely yet affectingly timeless in its evocation of how love goes when the indifferent, capricious whims of gods and nature intervene in the deepest yearnings of the human heart. Enter the subterranean theater and we…