0.2.2  More explicit instanciations, faster sorts and uniques
0.2.1  Bug fixes in barycenter and doublearea found by Martin Bisson
0.2.0  XML serializer more stable and fixed bug in remove_duplicate_vertices
0.1.8  Embree and xml (windows only) extras
0.1.5  Compilation on windows, bug fix for compilation with cygwin
0.1.1  Alpha release with core functions, extras, examples
