KAMPALA (Reuters) - Uganda's First Family was celebrating a joint political triumph on Sunday as Janet Museveni capped her husband's re-election as president by seizing a parliament seat from one of his biggest rivals. President Yoweri Museveni, 62, extended his two-decade rule at an election on Thursday that saw him trounce his former doctor and main challenger Kizza Besigye. In a double blow to Besigye's opposition Forum for Democratic Change (FDC), Janet also swept away one of its most senior officials in her bid to become a member of parliament. Most famous for her support for abstinence programmes to fight...