Fixed handling of skylight and headlight options in osgProducer::Viewer.
Fixed handling of skylight and headlight options in osgProducer::Viewer.


omega-hub/osg,XiaoCC/osg,ghub/osg,koshman86/osg,ghub/osg,stmh/osg,omega-hub/osg,XiaoCC/osg,ntoand/osg,koshman86/osg,artoolkit/osg,ntoand/osg,XiaoCC/osg,omega-hub/osg,ntoand/osg,artoolkit/osg,ghub/osg,stmh/osg,artoolkit/osg,stmh/osg,koshman86/osg,XiaoCC/osg,ghub/osg,artoolkit/osg,omega-hub/osg,stmh/osg,koshman86/osg,ntoand/osg,XiaoCC/osg,stmh/osg