Photo Illustration by Thomas Levinson/The Daily Beast/Getty/ReutersInfluential Kenyan citizens and expatriates have told The Daily Beast they want King Charles to use his forthcoming visit to the country to make a full and frank apology for crimes perpetrated by British overlords as they crushed the Mau Mau rebellion in Kenya between 1952 and 1960, one of the bloodiest episodes in colonial history.One man, a Kenyan-born British lawyer and councilor, whose elderly grandfather was killed by Britis