* port __vonoroi__.cc
handle gives wrong result)
* more self explaining interface for qhull options (?)
* less rudimentary version of distmesh2d and distmeshNd
* quiet error output
* Improve the algorithm to not destroy good regions again
* Implement in C/Fortran
* Use delaunayn instead of tri.mesh in distmesh2d
* Implement an n-D version of distmesh2d as provided in the matlab package
* Translate other functions of the matlab mesh package of
  Per-Olof Persson (http://www-math.mit.edu/~persson/mesh/)
