Added set up of CulLVisitor::Identifier so that the double buffered SceneView/CullVisitor share the same Identifier.
Added set up of CulLVisitor::Identifier so that the double buffered SceneView/CullVisitor
share the same Identifier.


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