AriaNg 1.3.9 Change Log

1. Add Russian language (#773, thx @gazizovemil)
2. Add Spanish language (#775, #776, #778, #781, #782, #783, #784, thx @castillofrancodamian)
3. Add Czech lanuage (#786, #787, thx @vorm04)
4. Update French language (#772, thx @Valaraukar86)
5. Fix wrong date time format for French language
6. Other bug fix and user interface optimization (#779)