Updated ChangeLog for 3.1.3 dev release
Updated ChangeLog for 3.1.3 dev release


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