attached):
* Light point strings using the REPLICATE opcode should now be supported
(>=15.6?)
* Directional lights should now work as in Performer using a viewing
frustrum defined by a direction vector, horizontal angular width, vertical
angular width, and roll angle about the direction vector. The current
directional light implementation had some bad assumptions which caused
problems with direction vectors not on the XY plane.
* IVE and OSG reader/writers were updated as appropriate"
Fixed crash associated with .osg files which contain empty description fields.
From Sondra Inverson, added support to .ive plugin for osgSim::DOFTransform.
Generalised the osgDB::Field so that its getFloat() method can be used with either doubles or
floats governed by the type passed in - this helps support either float/double
Quat and Matrix classes seemlessly.
