30 june 2005 Pierre Alliez - Added best fit of 2D triangles - Updated centroid as well - Added one util file in test 27 May 2005 Sylvain Pion - Add bounding_box(). - Use Kernel dimension tools. 19 May 2005 Sylvain Pion - Add centroid() and barycenter() for N points. 11 March 2005 Pierre Alliez - initial version 26 Dec 2006 - added demo for Windows