Added a render order sort to the list of Cameras being tested by the *Viewer::generatePointerData(..) method to ensure that the highest Camera gets focus.


git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/branches/OpenSceneGraph-3.2@14311 16af8721-9629-0410-8352-f15c8da7e697