title: How to include 2 variants of Serbian Language? with Latin letters and with Cyrillic letters
body: <p>I have an android app and I want to translate to Serbian and I want both variants of the language: with Latin letters and with Cyrillic letters.
  I tried this variants: <code>value-sr-rRS-Latn , value-sr-Latn , value-sr-rRS-Cyrl , value-sr-Cyrl</code>
  but not of that is working. 
  I get this error: <code>android-apt-compiler: [NAMEOFAPP] invalid resource directory name: [path]\res/value-sr-rRS-Latn</code></p>
  
  <p>On Android documentation about res dirs and Locale I can't find this option.</p>
  
  <p>Can I make 2 dirs with 2 variants of the language? And how?</p>
  
  <p>Thank you</p>