Added protection to the DatabasePager::requestNodeFile()'s call to startThread to ensure that only one startThread is every issued.
Added protection to the DatabasePager::requestNodeFile()'s call to startThread
to ensure that only one startThread is every issued.


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