Add clause to clean up AUTHORS.txt
Add clause to clean up AUTHORS.txt


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