message: Core: fix minor bug in Hamiltonian_Heisenberg.cu.
  This simply prevented compilation on some systems.
diff: @@ -13,6 +13,8 @@ using namespace Utility;
  using Utility::Constants::mu_B;
  using Utility::Constants::mu_0;
  using Utility::Constants::Pi;
  +using Engine::Vectormath::check_atom_type;
  +using Engine::Vectormath::idx_from_pair;
  using Engine::Vectormath::cu_check_atom_type;
  using Engine::Vectormath::cu_idx_from_pair;
  @@ -117,7 +119,7 @@ namespace Engine
  Neighbours::Get_Neighbours_in_Shells(*geometry, dmi_shell_magnitudes.size(), dmi_pairs, dmi_shells, use_redundant_neighbours);
  for (unsigned int ineigh = 0; ineigh < dmi_pairs.size(); ++ineigh)
  {
  - this->dmi_normals.push_back(Neighbours::DMI_Normal_from_Pair(*geometry, dmi_pairs[ineigh], dm_chirality));
  + this->dmi_normals.push_back(Neighbours::DMI_Normal_from_Pair(*geometry, dmi_pairs[ineigh], dmi_shell_chirality));
  this->dmi_magnitudes.push_back(dmi_shell_magnitudes[dmi_shells[ineigh]]);
  }
  }
  