BEIRUT (AP) — Ravers danced and swayed to the loud bass at a popular night club in the heart of the city of Beirut. It was another sold-out Saturday in the party capital of the Middle East. What was different this time was the DJ at the helm. Before putting on his headphones, he had been leading a Mass at a Lebanese Catholic university. Guilherme Peixoto, better known as Padre Guilherme, is a priest from a village in northern Portugal who preaches by day and parties at night. To the 52-year-old,