Added free of _visualInfo if it's already been allocated
Added free of _visualInfo if it's already been allocated


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