Added setting of position.w to 1.0 and removed zscale hack.
Added setting of position.w to 1.0 and removed zscale hack.


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