title: UISearchBar set different tint color for cancel button
body: <p>In my swift app I have a search bar like this:</p>
  
  <pre><code>lazy var searchBar = UISearchBar(frame: CGRectMake(0, 0, 0, 0))
  searchBar.delegate = self
  searchBar.showsCancelButton = true
  searchBar.tintColor = UIColor.blackColor()
  searchBar.spellCheckingType = .No
  searchBar.autocapitalizationType = .None
  searchBar.autocorrectionType = .No
  searchBar.placeholder = "Suchbegriff eingeben ..."
  searchBar.sizeToFit()
  </code></pre>
  
  <p>How can I set another tint color for cancel button as the tint color for the whole search bar?</p>