Fixed the PagedLOD::removeExpiredChildren() so it only removes the high res child that has expired and no more.
Fixed the PagedLOD::removeExpiredChildren() so it only removes the high
res child that has expired and no more.


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