Removed unused experimental code.

                         QDockWidget::DockWidgetFloatable);

    historyDock->setWhatsThis(tr("This shows all operations performed on the current project."));

    historyDock->setAllowedAreas(Qt::BottomDockWidgetArea);

    addDockWidget(Qt::BottomDockWidgetArea, historyDock);

    m_directory->setHistoryContainer(historyDock);

    tabifyDockWidget(m_warningsDock, historyDock);

      m_specialDocks.append(dock);

    }

    else {

      // The following logic not guaranteed to work as intented. If user moves one of the "special"

      // views such as sensor from below the project dock to the right side of project, the following

      // Desired behavior of docking views:

      // First regular view (footprint,cubeDisplay) is added to the right of the "special" views

      // (project, sensor, jigsaw, controlHealth).  Adding additional "regular" views are tabbed

      // with the last "regular" view which was added.

      // The following logic not guaranteed to work as intended. If user moves one of the "special"

      // views such as sensor from below the project dock to the right of the project, the following

      // will put the new dock to the right of the moved "special" dock instead of tabbing.  The only

      // way to possibly insure the intended functionality would be to check for the position of the

      // way to possibly ensure the intended functionality would be to check for the position of the

      // last added dock and either add or tabify depending on location.  This might also allow the

      // docks to be kept in a single list instead of m_specialDocks & m_viewDocks.

      if (m_viewDocks.count() == 0) {

        addDockWidget(Qt::RightDockWidgetArea, dock, Qt::Horizontal);

        addDockWidget(Qt::LeftDockWidgetArea, dock, Qt::Horizontal);

      }

      else {

        tabifyDockWidget(m_viewDocks.last(), dock);

    connect(dock, SIGNAL(destroyed(QObject *)), newWidget, SLOT(deleteLater()));

    // The list of dock widgets needs cleanup as each view is destroyed

    connect(dock, SIGNAL(destroyed(QObject *)), this, SLOT(cleanupViewDockList(QObject *)));

    // Redmine #5471 TODO Hiding the centralWidget in this constructor gets rid of the space which

    // is a place holder for the dumy centralWidget, which causes the project view to fill the space

    // horizontally and the history/warning widgets are show much larger vertically and user is not

    // able to make smaller. Attempts to change the sizePolicy on the history/warning widgets did

    // not fix this (see Directory::setHistoryContainer, Directory::setWarningContainer.  Calling

    // hide here keeps the project tree view smaller until a view is shown, however, the history/

    // warning widgets are still too large vertically.

    // centralWidget()->hide();

  }

  void Directory::setHistoryContainer(QDockWidget *historyContainer) {

    if (!m_historyTreeWidget) {

      m_historyTreeWidget = new HistoryTreeWidget( project() );

      // Redmine #5471 TODO: The sizePolicy calls were an attempt to remove the centralWidget from

      // IpceMainWindow to get rid of some odd behaviors with docking widgets.

      // 2 following sizePolicy: warning/history looks good until view added, then too large vertically - can't make smaller, just larger

      //m_historyTreeWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Expanding);

      //m_historyTreeWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::MinimumExpanding);

      // This keeps small after adding view, but it cannot be made larger , so keeps at sizeHint which is good

      //m_historyTreeWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Maximum);

      //m_historyTreeWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);

    }

    historyContainer->setWidget(m_historyTreeWidget);

  }

  void Directory::setWarningContainer(QDockWidget *warningContainer) {

    if (!m_warningTreeWidget) {

      m_warningTreeWidget = new WarningTreeWidget;

      // Redmine #5471 TODO: The sizePolicy calls were an attempt to remove the centralWidget from

      // IpceMainWindow to get rid of some odd behaviors with docking widgets.

      //m_warningTreeWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);

    }

    warningContainer->setWidget(m_warningTreeWidget);

  }

   *                           the close/open control net from reloadActiveControlInCnetEditorView

   *                           to Project::setActiveControl to prevent seg fault when there are

   *                           multiple cnetEditorViews with same cnet.

   *   @history 2018-07-26 Tracie Sucharski - Added some documentation. 

   */

  class Directory : public QObject {

    Q_OBJECT