HAUT-DU-CAP, Haiti -- As he begins his third year in office, President Michel Martelly is adding a dose of reality to his campaign promises, telling the Haitian people he alone cannot transform their lives. Calmer and more mature in his rhetoric, Martelly is calling for greater social responsibility, describing his nation’s deep-seated social ills —hunger, joblessness and poverty — as problems that will not disappear overnight. But even while trying to temper expectations, the man who once promised sweeping change remains uncompromising. He has simultaneously called for reconciliation among Haiti’s opposition while bashing political foes as he accuses parliamentarians of blocking progress.