Added delete selected object using delete and back space key, and added save option
Added delete selected object using delete and back space key, and added save option


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