message: Several functions in the Mesh class say they work on degrees of freedom,
  but seem to actually work on vertices only.  Comments and formal
  parameter names updated to reflect this.
diff: @@ -687,13 +687,13 @@ public:
  int GetBdrElementBaseGeometry(int i = 0) const
  { return i < GetNBE() ? boundary[i]->GetGeometryType() : BaseBdrGeom; }
  - /// Returns the indices of the dofs of element i.
  - void GetElementVertices(int i, Array<int> &dofs) const
  - { elements[i]->GetVertices(dofs); }
  + /// Returns the indices of the vertices of element i.
  + void GetElementVertices(int i, Array<int> &v) const
  + { elements[i]->GetVertices(v); }
  - /// Returns the indices of the dofs of boundary element i.
  - void GetBdrElementVertices(int i, Array<int> &dofs) const
  - { boundary[i]->GetVertices(dofs); }
  + /// Returns the indices of the vertices of boundary element i.
  + void GetBdrElementVertices(int i, Array<int> &v) const
  + { boundary[i]->GetVertices(v); }
  /// Return the indices and the orientations of all edges of element i.
  void GetElementEdges(int i, Array<int> &edges, Array<int> &cor) const;
  @@ -748,14 +748,14 @@ public:
  /// Returns the type of boundary element i.
  int GetBdrElementType(int i) const;
  - /* Return point matrix of element i of dimension Dim X #dofs, where for
  - every degree of freedom we give its coordinates in space of dimension
  + /* Return point matrix of element i of dimension Dim X #v, where
  + for every vertex we give its coordinates in space of dimension
  Dim. */
  void GetPointMatrix(int i, DenseMatrix &pointmat) const;
  - /* Return point matrix of boundary element i of dimension Dim X #dofs,
  - where for every degree of freedom we give its coordinates in space
  - of dimension Dim. */
  + /* Return point matrix of boundary element i of dimension Dim X #v,
  + where for every vertex we give its coordinates in space of
  + dimension Dim. */
  void GetBdrPointMatrix(int i, DenseMatrix &pointmat) const;
  static FiniteElement *GetTransformationFEforElementType(int);
  