Updated change log for 0.8.45 release.
Updated change log for 0.8.45 release.


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