Zimbabwe’s first lady Grace Mugabe has escaped answering asault charges in South Africa after being granted diplomatic immunity. She arrived back in Harare early on Sunday morning. Department of International Relations confirms Nkoana-Mashabane has granted Grace Mugabe diplomatic immunity https://t.co/fk1GA8izlo pic.twitter.com/aRx8JijwQT— City Press Online (@City_Press) August 20, 2017 Mugabe, 52, was accused of attacking 20-year-old model…