title: UITableViewCellAccessoryCheckmark not showing in iOS 7
body: <p>I'm having a problem showing the Checkmark accessory in my cell.
  When I use something another type of accessory it works but not with the Checkmark accessory.</p>
  
  <p>It works perfectly in iOS 6 but not on iOS 7.
  When am I missing?</p>
  
  <pre><code> (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
      UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:EVENT_SELECTION_CELL_IDENTIFIER forIndexPath:indexPath];
      Event *event = [self.fetchedResultsController objectAtIndexPath:indexPath];
      cell.textLabel.text = event.name;
      cell.selectionStyle = UITableViewCellSelectionStyleNone;
      if ([event.current boolValue]) {
          cell.accessoryType = UITableViewCellAccessoryCheckmark;
      } else {
          cell.accessoryType = UITableViewCellAccessoryNone;
      }
      return cell;
  }
  </code></pre>