Fix for VisualStudio's lack of auto_ptr::reset.
Fix for VisualStudio's lack of auto_ptr::reset.


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