JOHANNESBURG, SOUTH AFRICA – DECEMBER 07: South Africans gather to pay respect and tribute to former President Nelson Mandela outside his Houghton home on December 7, 2013 in Johannesburg, South Africa. Crowds gather at his home as vigils continue across South Africa as thousands mourn the death of former leader Nelson Mandela. Mr Mandela, died on Thursday aged 95, spent 27 years in jail before becoming South Africa’s first black president in 1994. (Photo by Jeff J Mitchell/Getty Images)