Add mailers queue to the background_jobs script.

Part of gitlab-org/gitlab-ce!1902

cc @jacobvosmaer

mentioned in merge request !1902 (merged)

  1) Project.trending with an explicit start date sorts Projects by the amount of notes in descending order
     Failure/Error: expect(subject).to eq([project2, project1])

It's a sporadic test, maybe @yorickpeterse knows more?!

Added 1 commit:

• 66c86cd6 - Add mailers queue to the background_jobs script.

mentioned in merge request !1975 (merged)

Superseded by gitlab-org/gitlab-ce!1975

Status changed to closed

mentioned in commit 70ada081

mentioned in commit 2c9cd67f

mentioned in commit 60942bf5