GUATEMALA CITY (Reuters) – Software guru John McAfee, fighting deportation to Belize, was rushed to a hospital in Guatemala on Thursday shortly after his asylum request was rejected, but a suspected heart attack turned out to be stress in a fresh twist to the saga. The 67-year-old U.S. computer software pioneer was taken swiftly from a hospital in a police car out of the sight of media, after earlier arriving in an ambulance lying on a stretcher. …