* Moved Lightweight_vector_3 from Point_set_processing_3 to Surface_reconstruction_points_3. It is now undocumented.
* Point_set_processing_3 User Manual does not have a structure of "pipeline" anymore.
* New introduction figures for Surface_reconstruction_points_3 and Point_set_processing_3.
* Deleted poisson.jpg/eps in Surface_reconstruction_points_3.
* INPUT and STEINER constants are now an enum.
* Removed obsolete code:
- mst_normal_orientation(max_angle)
* PointWithNormal_3::set_position() renamed as position().
* Fixed misspellings.
* and many other improvements to the documentation (and C++ comments).
Laurent Saboret