From Brad Christaiansen, added check for projection matrix changing in screen coord character size mode.
From Brad Christaiansen, added check for projection matrix changing in
screen coord character size mode.


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