While last week Cafod announced it would decline its share of the royalties from its employee Damian McBride’s memoirs, the Catholic aid agency has now revealed Gordon Brown’s former press adviser has been promoted.   Mr McBride published a book last month exposing his plotting against political opponents inside the Labour Party and Number 10, and some feared Cafod could be damaged by its connection to the book. The charity had been due to receive half the royalties.   It has emerged that last December Mr McBride successfully applied for a new post of head of external communications, created from the merging of his own media team with a section named CCS which handled corporate communications and creative work such as the Cafod website. From running a team of six