func tableView(tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {

    let headerView = tableView.dequeueReusableHeaderFooterViewWithIdentifier("CustomHeader") as! CustomHeader

    // headerView.customLabel.text = content[section].name  // set this however is appropriate for your app's model
    headerView.labelNIB.text = "Test"
    headerView.sectionNumber = section

    headerView.clipsToBounds = true

    return headerView
}