Aina Sitraka

- add php 7.1 env in travis - update phpexiftool/exiftool version to 10.16 - rebuild and regenerate tag classes

## Changelog ### Adds - PHRAS-4062: admin users delete and request improvement

## Changelog ### Fixes - PHRAS-4042: fix webvtt field to upload to expose

## Changelog ### Fixes - PHRAS-4058: admin - workermanager default filter since 3 days

## Changelog ### Fixes - PHRAS-4067: admin - dashboard - 500 error - remove unused swiftools requirements

## Changelog ### Adds - PHRAS-4063: Phraseanet - Keycloack - refresh token implementation

## Changelog ### Fixes - PHRAS-3857: Check CSRF token on account

## Changelog ### Fixes - PHRAS-4103: Prod xss check

## Changelog ### Fixes - PHRAS-4088: improve workerrunningjob finished

## Changelog ### Fixes - PHRAS-4084: workers - cancel a workers jobs if error is "record not found"