What does this MR do?
Adds maildev to catch sent out emails, also enables our mailqueuerunner in a separate container for dev/test/ci.
maildev can be used inside tests as well. A simple test helper is available as Helper/Maildev that is used in Acceptance/RegisterCept for now.
How confident are you it won't break things if deployed?
only affects dev/test/ci :)
Links to related issues
- added a test, or explain why one is not needed/possible...
- no unrelated changes
- asked someone for a code review
- joined #foodsharing-beta channel at https://slackin.yunity.org
- added an entry to CHANGELOG.md (description, merge request link, username(s))