Tutor

- [Bugfix] Fix missing js translations.
- [Bugfix] Fix tls certificate generation in cron jobs.

- [Bugfix] Fix "Unable to resolve dependency" error during forum initialisation.
- [Feature] Add `settheme` command to easily assign a theme to a domain name.
- [Improvement] Modify Nginx access logs to include request scheme and server name (plugin developers should use the "tutor" log format).
- [Bugfix] Fix DNS resolution of restarted service.
- [Feature] Restart multiple services with `local restart`.
- [Feature] Make it possible to easily reload the openedx gunicorn process with `tutor local exec lms reload-gunicorn`.
- [Improvement] Rename lms/cms_worker to lms/cms-worker in local deployment.
- [Improvement] Add the management plugin to the RabbitMQ container.
- [Improvement] Make it possible to run an Elasticsearch service on HTTPS.

- [Improvement] Switch edx-platform from open-release/ironwood.2 tag to the open-release/ironwood.master branch.
- [Security] Upgrade django to 1.11.28.
- [Improvement] Make it possible to configure the Elasticsearch heap size.
- [Bugfix] Fix broken Elasticsearch environment variables.
- [Improvement] Restore more recent Android app version (289).

- [Bugfix] Fix auth problem in Android app (289).

- [Bugfix] Fix incorrectly parsed empty strings for `config save --set ...=...` commands.

- [Bugfix] Make sure `docker-compose.override.yml` is loaded in dev and local contexts.