Introduced ref_ptr<> usage to avoid potential memory leaks
Introduced ref_ptr<> usage to avoid potential memory leaks

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