Merge branch 'mesh_update' into 'master'

export update method for mesh

See merge request jschoeberl/netgen!317

libsrc/meshing/python_mesh.cpp

@@ -1016,6 +1016,10 @@ DLL_HEADER void ExportNetgenMeshing(py::module &m)
             res["tet"] = py::make_tuple( values[2], values[3] );
             return res;
           }, py::arg("badelement_limit")=175.0)
+    .def ("Update", [](Mesh & self)
+          {
+            self.SetNextTimeStamp();
+          })
     .def ("CalcTotalBadness", &Mesh::CalcTotalBad)
     .def ("GetQualityHistogram", &Mesh::GetQualityHistogram)
     ;