closes: https://github.com/TryGhost/Toolbox/issues/317
- Added two tests for unknown versions with accept-versions set ahead and behind
- Ahead passes, but we get an error for behind
- Refactored the api-version-compatibility-service to expose its own middleware so the init sequence is correct
refs https://github.com/TryGhost/Toolbox/issues/280
- When passing the sendEmail parameter with a boutnd 'send' method the e2e tests were failing becuase mock mailer did not pick up the send method. Using this slightly more verbose implementation as it "just works". Could be rewritten into something nicer if there's such a need in the future
refs https://github.com/TryGhost/Toolbox/issues/280
- This is continuation of putting pieces together to allow Ghost notifying owner and admin users about version mismatch errors
- This changeset adds the api-version-compatibility intialization during the boot (needed to be able to pospone the send email initialization so that it's testeable from the e2e tests)
- There's also a data service which handles fetching/saving notifications and fetching emails of users that should be notified
