title: Localize IOS button label
body: <p>I use localization strings to localize UI elements. Everything works, except localizing title of a button.</p>
  
  <p>"21.title" = "It should be the localized text"; //does not work</p>
  
  <p>I think it would be caused by state of button (...forState:UIControlStateNormal...), title can be set by view state. How can I defie it in the localization file?</p>
  
  <p>How can I define button title in localization string? What is the trick?</p>
  
  <p><strong>NOTE: I know how to do it from source code, my question is about how to do it by localization string file. So: i know how to use localization strings to localize UI, except buttons.</strong></p>