title: NSData to NSString encoding
body: <p>I have an application that receives messages from server.
  Those messages may contain cyrillic characters. But when I transform received data into NSString I obtain only "\u041c\u0430\u043a" symbols instead of cyrrilic ones. </p>
  
  <pre><code>   NSData *responceData = ....;
  
     NSString* responceString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
  </code></pre>
  
  <p>How may I get correct symbols? </p>