message: Make sure create surfaces is always available
diff: @@ -56,7 +56,6 @@ Surfaces::Surfaces(QObject* p)
  m_meshGenerator1(nullptr), m_meshGenerator2(nullptr), m_dialog(nullptr)
  {
  QAction* action = new QAction(this);
  - action->setEnabled(false);
  action->setText(tr("Create surfaces..."));
  connect(action, SIGNAL(triggered()), SLOT(surfacesActivated()));
  m_actions.push_back(action);
  @@ -80,10 +79,8 @@ void Surfaces::setMolecule(QtGui::Molecule* mol)
  {
  if (mol->basisSet()) {
  m_basis = mol->basisSet();
  - m_actions[0]->setEnabled(true);
  } else if (mol->cubes().size() != 0) {
  m_cubes = mol->cubes();
  - m_actions[0]->setEnabled(true);
  }
  m_molecule = mol;
  