Implemented initial cut of anaglyphic stereo
Implemented stereo support into osgkeystone as a testbed for moving stereo support from SceneView into osgViewer
Refactored Keystone setup as a step toward integrating Keystone correction with stereo
As a test of new repository updated date in README.txt
Introduced new scheme for handling mouse events with osgViewer.  The new scheme enables robust event handling even when using distortion correction render to texture Cameras.
Commented out debug output