message: Made navigationTitle and navigationDescription properties  observable knockout in progress buttons markup
diff: <div data-bind="css: model.css.progressButtonsListContainer">
  <ul data-bind="foreach: model.visiblePages, css: model.css.progressButtonsList">
  <li data-bind="css: $parent.getListElementCss($index), click: $parent.clickListElement.bind($parent)">
  - <div data-bind="css: css.progressButtonsPageTitle, text: navigationTitle || name"></div>
  - <div data-bind="css: css.progressButtonsPageDescription, text: navigationDescription"></div>
  + <div data-bind="css: css.progressButtonsPageTitle, text: locNavigationTitle.koRenderedHtml || name"></div>
  + <div data-bind="css: css.progressButtonsPageDescription, text: locNavigationDescription.koRenderedHtml"></div>
  </li>
  </ul>
  </div>
  