title: Changing view controller to tab bar controller
body: <p>I have a tab based application with 2 tabs (HomeViewController and SettingsViewController).</p>
  
  <p>On the SettingsViewController I have a button that will take the user to a third view (ChangeSomeSettingController).</p>
  
  <p>On that third view, I have a TableView with this function</p>
  
  <pre><code>func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
      ...
      let settingsViewController = self.storyboard!.instantiateViewControllerWithIdentifier("SettingsViewController") as! SettingsViewController
      self.presentViewController(settingsViewController, animated:true, completion:nil)
  }
  </code></pre>
  
  <p>This will move the user back to the SettingsViewController. However, I am not able to get the tab bar to display at the bottom of the screen like it is when I first load the application.</p>
  
  <p>How can I go back to the SettingsViewController and keep the tabs at the bottom of the screen?</p>