Nominal polymarker size standardised between drivers.
Traversal state list save and restore have been optimised.
NUBS curves and surfaces are simulated on drivers which don't support
it.
Trimming curves are now simulated.
Data mapping bi-values are supported.
Line shading is simulated on 2D drivers.
Cell array 3 plus is simulated.
Individual edge control for ``with data'' primitives has been implemented.
Standard error management adapted to different systems.
Annotation text picking now detects the text and not only the
annotation point.
If Z-buffer is ON and HLHSR ID is ON, picking works in the real 3D
space. That is it returns the picked primitive with the higher Z value
in DC coordinates. Otherwise it returns the first picked object.
Picking an image which contains several views is faster.
Hardware fonts are drawn more correctly on some drivers
