Move tabulate_dof_coordinates from ufc dofmap to ufc finite_element

[Prof Garth Wells]

See http://fenicsproject.org/pipermail/fenics/2014-March/001424.html

[Martin Sandve Alnæs]

The finite_element::tabulate_dof_coordinates() should just tabulate the reference cell coordinates. Then the upcoming ufc::domain::map_reference_coordinates(x, n, X, coordinate_dofs) can be used to compute global coordinates.

The reference cell dof coordinates are fixed, so the function can actually be:

virtual const vector<double> & tabulate_dof_coordinates() const
{
  static const vector<double> dof_coordinates = {
    ...
    }; 
  return dof_coordinates;
}

as in the enabled_coefficients implementation.

[Prof Garth Wells]

Fixed in 3d9e5bc.

[Prof Garth Wells]

Removing milestone: 1.7 (automated comment)