Gabon president Bongo sworn in after disputed poll

By Edward McAllister LIBREVILLE (Reuters) - Gabon President Ali Bongo was sworn in for a second term on Tuesday and called for unity at a low-key ceremony following a razor-thin election victory whose integrity was questioned by international observers. Bongo's victory by less than 6,000 votes has drawn unwelcome scrutiny on the president, whose family has ruled the oil-producing state in Central Africa for 49 years. France called for a recount and the European Union said it detected anomalies i