before state, which fixes problem that can occur with state that needs
the current model view or projection matrices.
Changes osgreflect so that it uses ClipNode rather than clip plane, thereby
fixing the problems which occur when the above is applied.
Create a new osgProducer version of the original GLUT based version.
the actual implemention. This has been done so that when a freetype font is
created the implementation can unloaded when the freetype plugin is unloaded
without breaking the main font.
Also add image margin around founds to prevent any image boundaries appearing.
osg::Image::setImage has also been modified to require the AllocationMode
mode to be passed to it so that it knows how to delete the data once the
image goes out of scope.
Port the image plugins across to specify the new AllocationMode, and converted
them across to using new/delete in place of malloc/free.
