Updated ChangeLog for 2.4 release
Updated ChangeLog for 2.4 release


omega-hub/osg,XiaoCC/osg,ntoand/osg,omega-hub/osg,ghub/osg,ntoand/osg,stmh/osg,artoolkit/osg,artoolkit/osg,stmh/osg,ghub/osg,stmh/osg,XiaoCC/osg,omega-hub/osg,koshman86/osg,ntoand/osg,koshman86/osg,XiaoCC/osg,stmh/osg,artoolkit/osg,ntoand/osg,ghub/osg,omega-hub/osg,koshman86/osg,stmh/osg,XiaoCC/osg,XiaoCC/osg,ghub/osg,artoolkit/osg,koshman86/osg