Add plural rules to Upper Sorbian
Add plural rules to Upper Sorbian

jotes/pontoon,participedia/pontoon,Osmose/pontoon,participedia/pontoon,m8ttyB/pontoon,yfdyh000/pontoon,Jobava/mirror-pontoon,jotes/pontoon,yfdyh000/pontoon,mathjazz/pontoon,sudheesh001/pontoon,mozilla/pontoon,mathjazz/pontoon,jotes/pontoon,mathjazz/pontoon,Jobava/mirror-pontoon,Jobava/mirror-pontoon,mastizada/pontoon,sudheesh001/pontoon,mathjazz/pontoon,vivekanand1101/pontoon,sudheesh001/pontoon,participedia/pontoon,vivekanand1101/pontoon,vivekanand1101/pontoon,Osmose/pontoon,mozilla/pontoon,Jobava/mirror-pontoon,participedia/pontoon,yfdyh000/pontoon,m8ttyB/pontoon,mozilla/pontoon,Osmose/pontoon,mozilla/pontoon,m8ttyB/pontoon,mozilla/pontoon,mastizada/pontoon,Osmose/pontoon,yfdyh000/pontoon,vivekanand1101/pontoon,mathjazz/pontoon,mastizada/pontoon,m8ttyB/pontoon,sudheesh001/pontoon,jotes/pontoon,mastizada/pontoon