Rewrite of the reparametrization code for better integration and use of faster linear solvers.
@arthurbawin: your automatic mesh size field still currently depends on hxt_curvature. We discussed with @Remacle and I would like to help with a tighter integration in Gmsh, as we will use p4est for other things in the future and duplicating p4est interfaces is not optimal. Can you get in touch with us 2 so we can discuss this? Thanks.