YAOUNDE (Reuters) - A court in Cameroon on Saturday sentenced former presidential hopeful and senior minister Marafa Hamidou Yaya to a 25-year jail term on embezzlement charges related to the botched purchase of a presidential plane in 2004. The court handed down the sentence early on Saturday morning after a marathon overnight trial. The court handed the same sentence to Yves Michel Fotso, former director of defunct state air transport company CAMAIR. Hamidou Yaha was minister of territorial administration until he was sacked in December in a cabinet reshuffle by President Paul Biya. ...