In DRF APIs, return a single translation if 'lang' GET param is passed (bug 907820)
Convert NewsletterResource to DRF (bug 910564)
Merge pull request #1314 from ngokevin/iarcdescs

add iarc rating descriptors
fix developer tests
Commit from Mozilla Verbatim by user shaohua.wen@gmail.com.: 5015 of 5455 strings translated (0 fuzzy).
Commit from Mozilla Verbatim by user shaohua.wen@gmail.com.: 5015 of 5455 strings translated (0 fuzzy).
remove flaky pyquery assert in iarc test
Commit from Mozilla Verbatim by user rpmdisguise-otros@yahoo.es.: 5455 of 5455 strings translated (0 fuzzy).
fixed editor review access error on empty version (bug 709411)
Commit from Mozilla Verbatim by user markh@babelzilla.org.: 5452 of 5452 strings translated (0 fuzzy).
Updated Polish translation
Fixed UnicodeEncodeError on blocklistCA using special chars (bug 686004)
Merge pull request #1333 from vinyll/blocklist_encode-686004

Fixed UnicodeEncodeError on blocklistCA using special chars (bug 686004)
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