Update pylint, pep8, return json for REST call
Update pylint, pep8, return json for REST call

srfraser/services,lundjordan/build-relengapi,srfraser/services,La0/mozilla-relengapi,mozilla-releng/services,mozilla-releng/services,djmitche/build-relengapi,srfraser/services,lundjordan/build-relengapi,Callek/build-relengapi-slaveloan,lundjordan/build-relengapi,hwine/build-relengapi,andrei987/services,garbas/mozilla-releng-services,andrei987/services,Callek/build-relengapi-slaveloan,lundjordan/build-relengapi,mozilla/build-relengapi,lundjordan/services,djmitche/build-relengapi,hwine/build-relengapi,mozilla/build-relengapi,djmitche/build-relengapi,andrei987/services,mozilla-releng/services,mozilla/build-relengapi,La0/mozilla-relengapi,mozilla-releng/services,hwine/build-relengapi,La0/mozilla-relengapi,lundjordan/services,hwine/build-relengapi,garbas/mozilla-releng-services,Callek/build-relengapi-slaveloan,La0/mozilla-relengapi,djmitche/build-relengapi,Callek/build-relengapi,srfraser/services,andrei987/services,garbas/mozilla-releng-services,Callek/build-relengapi,garbas/mozilla-releng-services,Callek/build-relengapi,Callek/build-relengapi-slaveloan,lundjordan/services,lundjordan/services,Callek/build-relengapi,mozilla/build-relengapi