added mesh_gradient and distance_to_interface for XML
added mesh quantities
added mesh quantities: double quantities on vertices or cells
added support for dynamic_points
renamed to affine transform, added translation vector, added support for dynamic_points
extract seed points now works quietly (no triangle output)
using dynamic_point, added matrix and translate parameter, using affine_transform instead of linear_transform
added algorithms
added support for mesh quantities
added support for mesh quantities
using dynamic_point
added support for mesh quantities
added new tools
added new tools for merging two meshes and re-mapping segment ids
added new algorithms: merging two meshes, remapping segment ids