Update SO version number to 66 to skip over 65 value planned to 2.8.3
Update SO version number to 66 to skip over 65 value planned to 2.8.3


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