PORT-AU-PRINCE, Haiti (AP) — The Vodou faithful sing, their voices rising above the gunfire erupting miles away as frantic drumbeats drown out their troubles. Shunned publicly by politicians and intellectuals for centuries, Vodou is transforming into a more powerful and accepted religion across Haiti, where its believers were once persecuted. The violence has left more than 360,000 people homeless, largely shut down Haiti’s biggest seaport and closed the main international airport two months ago.