Fix bug 1212738: Send proper plural_form when updating translations.
Fix bug 1212738: Send proper plural_form when updating translations.

mozilla/pontoon,participedia/pontoon,jotes/pontoon,mozilla/pontoon,jotes/pontoon,mathjazz/pontoon,mastizada/pontoon,mastizada/pontoon,mathjazz/pontoon,mathjazz/pontoon,participedia/pontoon,mathjazz/pontoon,participedia/pontoon,mastizada/pontoon,jotes/pontoon,yfdyh000/pontoon,participedia/pontoon,yfdyh000/pontoon,yfdyh000/pontoon,sudheesh001/pontoon,mathjazz/pontoon,mozilla/pontoon,mastizada/pontoon,sudheesh001/pontoon,sudheesh001/pontoon,sudheesh001/pontoon,mozilla/pontoon,jotes/pontoon,mozilla/pontoon,yfdyh000/pontoon