Gabonese awoke Thursday to a new military leader after mutinous soldiers ousted a president whose family had ruled the oil-rich Central African nation for more than five decades. The new leader is Gen. Brice Clotaire Oligui Nguema, head of the elite republican guard unit, who soldiers announced on state TV Wednesday, hours after President Ali Bongo Ondimba was declared winner of last week's presidential election, which Gabonese and observers say was marred with irregularities and a lack of trans