title: Localize buttons and label in custom tableview cell [swift]
body: <p>I have a tableview with custom cells.
  Each is made of several objects: buttons and texts.
  I have some problems localizing the buttons' content.
  I have my .strings file with key and translation text defined, for example</p>
  
  <pre><code>START="Start";
  </code></pre>
  
  <p>Calling</p>
  
  <pre><code>cell.startButton.setTitle(NSLocalizedString("START", comment: ""), forState: .Normal)
  </code></pre>
  
  <p>Thus instead of having 'Start' as text button I have 'START', why? Of course the text is not localized because I always read 'START'.</p>
  
  <p>EDIT:
  I prepared a test app which shows the same behavior.
  The download link is <a href="https://dl.dropboxusercontent.com/u/3017730/provaLocalize.zip" rel="nofollow">HERE</a>
  Someone can help?</p>
  
  <p>EDIT2:
  I found the error the string file MUST be called: 'Localizable.strings' I didn't know that...</p>