message: Bugfix for L2 finite element collections over points.
  Point meshes (dim == 0) were not explicitly handled, causing a segfault.
diff: @@ -1742,7 +1742,11 @@ L2_FECollection::L2_FECollection(const int p, const int dim, const int type,
  }
  OtherDofOrd = NULL;
  - if (dim == 1)
  + if (dim == 0)
  + {
  + L2_Elements[Geometry::POINT] = new PointFiniteElement;
  + }
  + else if (dim == 1)
  {
  if (m_type == BasisType::Positive)
  {
  