Updated Polish translation
Merge pull request #1337 from Witia1/master

Updated Polish translation
Add deploy_web task to fabfile.py
Removed per-app stats (bug 933981)
Fixed tests
Bump app-validator (bug 934463)
allow developer to opt into strictly enforced region choices (bug 896613)
circular import sadface
Merge pull request #1321 from diox/convert-newsletterresource-to-DRF

Convert NewsletterResource to DRF (bug 910564)
Convert PermissionResource to DRF (bug 910548)