In the theatrical annals of wild and wicked stage plays, there are black comedies, blacker comedies, and blacker-than-the-dead-of-night comedies like “Hangmen.“ Prolific playwright Martin McDonagh hasn’t written all of them, to be sure; but he’s created some of the best of this deadly lot, including “The Beauty Queen of Leenane,” “The Cripple of Inishmaan” and […]