MFT r20666: Tell osg::Referenced when the use of thread-safe reference             counting is needed. The way that this is determined is a hack,             but it's a relatively small one.
MFT r20666: Tell osg::Referenced when the use of thread-safe reference
            counting is needed. The way that this is determined is a hack,
            but it's a relatively small one.


git-svn-id: 586995f25b72854838fe1e42a2812ba84a3d5c5f@20670 23c62cac-4e0f-0410-93ea-c11bc791b11d

rpavlik/vrjuggler-2.2-debs,rpavlik/vrjuggler-2.2-debs,rpavlik/vrjuggler-2.2-debs,rpavlik/vrjuggler-2.2-debs,rpavlik/vrjuggler-2.2-debs,rpavlik/vrjuggler-2.2-debs,rpavlik/vrjuggler-2.2-debs