Victor Hugo’s classic novel of the French Revolution, chronicling the unjust persecution of Jean Valjean by police inspector Javert, has been spectacularly musicalized by French writer-composers Claude-Michel Schonberg and Alain Boublil and English lyricist Herbert Kretzmer, and brilliantly realized in Trevor Nunn and John Cairda’s landmark production. First produced at Britain’s Royal Shakespeare Company, “Les Miz” winningly injects classical theater values into its conventional Broadway mix of melodrama and razzle-dazzle stage effects.