NICOSIA (Reuters) - The six-year-old mascot for a British army battalion has been demoted in disgrace for acting the goat during a parade in full view of dignitaries. Billy Goat has been a mascot of the First Battalion, the Royal Welsh regiment, since he was six months old and had the official rank of lance-corporal before his frisky antics during a parade marking Queen Elizabeth's official birthday earlier this month. The army said he had been demoted to fusilier (private) as a result of his behavior. "The goat major had a hard time keeping him in line, he was bouncing...