Fix reference to relaxngURI.
Fix reference to relaxngURI.

hanshuebner/jing-trang,dmj/jing-trang,brand/jing-trang,dmj/jing-trang,brand/jing-trang,hanshuebner/jing-trang,dmj/jing-trang,hanshuebner/jing-trang,brand/jing-trang