Nairobi (dpa) – Incumbent President Uhuru Kenyatta has pleaded for peace and unity after being declared the winner of Kenya’s hotly contested presidential poll. The 55-year-old, who has been in office since 2013, won a second five-year term with 54.27 per cent of the vote, followed by 72-year-old opposition leader Raila Odinga with 44.74 per cent,…