OWN CORRESPONDENT FRIENDS and colleagues of Professor Ernest Wamba-dia-Wamba, a respected scholar and statesman who has passed away, have paid warm tributes to him. Wamba-dia-Wamba died in Kinshasa, the Democratic Republic of Congo.  He taught in many universities including the University of Dar es Salaam, Harvard University, Boston College, and Brandeis University.   The Council for the Development of Social Science Research in Africa (CODESRIA) said Wamba-dia-Wamba was a brilliant political theorist noted for his ground-breaking work on democracy, social movements and emancipative politics in Africa.  In a statement, CODERSIA said: “Prof. Wamba-dia-Wamba was a scholar who sought to actualize his…