From Richard Schmidt, fixed the handling of user data so that it uses ref_ptr<> to avoid data getting deleted.
From Richard Schmidt, fixed the handling of user data so that it uses ref_ptr<> to avoid data getting deleted.


tomasthoresen/osg,scrawl/osg,scrawl/osg,marchelbling/osg,marchelbling/osg,openscenegraph/osg,tomasthoresen/osg,openscenegraph/osg,artoolkit/osg,marchelbling/osg,jtorresfabra/osg,jtorresfabra/osg,tomasthoresen/osg,artoolkit/osg,scrawl/osg,artoolkit/osg,jtorresfabra/osg,scrawl/osg,jtorresfabra/osg,marchelbling/osg,openscenegraph/osg,openscenegraph/osg,tomasthoresen/osg,artoolkit/osg