Updated Serbian translation
Updated Serbian translation

jadahl/gtk,alexlarsson/gtk,grubersjoe/adwaita,grubersjoe/adwaita,grubersjoe/adwaita,jadahl/gtk,jadahl/gtk,grubersjoe/adwaita,jadahl/gtk,alexlarsson/gtk,grubersjoe/adwaita,grubersjoe/adwaita,jadahl/gtk,alexlarsson/gtk,alexlarsson/gtk,alexlarsson/gtk,alexlarsson/gtk,alexlarsson/gtk,grubersjoe/adwaita,jadahl/gtk,grubersjoe/adwaita,jadahl/gtk,jadahl/gtk,alexlarsson/gtk