mouse coords in osgGA::GUIEventAdapter, and ported osgGA camera manaipulators
to use the new normalized values.
Moved osgProducer across to tracking the window dimensions and ensure that the
internals values in osgProducer::EventAdapter are kept consistent. Moved
the warp pointer in Viewer across to using KeyboardMouse::positionPointer().
any reference to these in the distribution across to using unsigned char,
unsigned short etc. This has been done to keep the OSG code more opaque
to what types are.
osgGA (Gui Abstraction). This may break users code, but all it should
require to fix the builds should be a change from
osgUtil::CameraManipulator (etc) to osgGA::CameraManipulator and
include <osgUtil/CameraManipulator (etc) to osgGA/CameraManipulator and
the extra dependency of the link line.
