Change char* to const char* to fix warnings
Change char* to const char* to fix warnings


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