Blender python API was changing so oftern I gave up for a while. Sadly I needed the scripts working again , so cross fingers they stop changing everything :-) Now the scripts work in Blender 2.58 and maybe newer versions.
While fixing things I added some new features:
- Light groups can be set in material panel, exports correctly.
- Mesh data rotated 90deg to match openGL x,y,z.
- LOD mesh support using Empty as base object.
- Automatic shader attachment based on lights and materials.
- ... and some more stuff.