New Features in Coin v2.2.0

This is a brief summary of the new features in Coin v2.2.0:

- Multi-Texturing (see SoTextureUnit)
- Bump-Mapping
  - SoBumpMap
  - SoBumpMapCoordinate
  - SoBumpMapTransform
- Better Font Support
- TrueType font support for all 3D text primitive types.
- Render To Texture Support (see SoSceneTexture2)
- REPLACE texture model support for SoTexture2
- pbuffer support for SoOffscreenRenderer
- New transparency rendering type, SORTED_LAYERS_BLEND