HARARE – Vice President Constantino Chiwenga left Harare for the Group of 77 developing nations summit in Havana, Cuba, on Wednesday. Chiwenga flew aboard the US$52 million Dassault Falcon 7X presidential jet, accompanied by foreign minister Frederick Shava. Chiwenga’s trip to the summit running from 15-16 September marks a busy week in North America for Zimbabwe’s leaders…