[aur-dev] [PATCH] Serbian translation for AUR

Hello, I've made Serbian translation for AUR, you can find patch in attached archive. Please merge. Also, it seems I've found a bug in translation_tool script, as it doesn't extract all messages. During a local test I saw that other translations have a lot more translatabe messages than translation_tool gave me, so I had to compare sr.po to other translation files and add missing strings manually. Dunno what happened, maybe it was me doing something wrong. :/ Thank you for your time. Best regards, Slobodan Terzić