title: Showing MBProgress HUD inside SWRevealViewController
body: <p>I'm showing <code>MBProgressHUD</code> in menu bar of <code>SWRevealViewController</code>. When I scroll the menu and again open the menu the position of <code>MBProgressBar</code> changes.</p>
  
  <p>I want the position to remain in the center of menu all the time.</p>
  
  <pre><code>hud = [MBProgressHUD showHUDAddedTo:self.tableView animated:YES];
  </code></pre>