Upgrade to Django 1.8.3.
Upgrade to Django 1.8.3.

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