Rock fans flooded into Camden, N.J., on Saturday for the third annual Rock Allegiance Festival, this year held for the first time at BB&T Pavilion and Wiggins Waterfront Park rather then it’s original location of PPL Park in Chester, PA. The one day rock music festival had some rather unfortunate changes to the lineup last minute, including Marilyn Manson not be able to perform due to his recent on-stage injury on the second date of …