message: Hamiltonian Heisenberg:
  fixed a typo that caused compiling errors in cuda version
diff: @@ -1127,7 +1127,7 @@ namespace Engine
  auto translation_vectors = field<Vector3>();
  auto cell_atoms = field<Vector3>();
  for(int i=0; i<3; i++)
  - bravais_vectors.push_back(geometry->lattice_constant * geometry->bravais_vectors[i]);
  + translation_vectors.push_back(geometry->lattice_constant * geometry->bravais_vectors[i]);
  for(int i=0; i<geometry->n_cell_atoms; i++)
  cell_atoms.push_back(geometry->cell_atoms[i]);
  