By Andrew Scot Bolsinger Jean Valjean has nothing on Robert Coston. The fictional hero of the Broadway musical “Les Miserables” went to prison for 19 years for stealing a loaf of bread. But the real life Robert Coston was sentenced on Wednesday to 68 years for a two month crime spree in 2012. Both cited feeding their family as their motivation for the crimes. Brooklyn D.A. Kenneth Thompson said Coston’s long sentence…