Isabel dos Santos is daughter of Angolan president
                                
                                
                                    (Newser) -
                                    Africa's got its first female billionaire. Thanks to her shares in Portuguese and Angolan companies, Isabel dos Santos, 40, is now worth more than $1 billion,  Forbes  reports. The daughter of Jose Eduardo dos Santos, the 33-year president of Angola, she opened her first business, an Angola restaurant, at...