MFH: r491093 r491734 r491752

Bugfix release to version 11.6.5.
https://about.gitlab.com/2019/01/17/gitlab-11-6-5-released/

Approved by: mentors (implicit)

Upgrade to 11.7.0.
For detailed changelog see:
https://about.gitlab.com/2019/01/22/gitlab-11-7-released/

Security upgrade to version 11.7.3.
For more details see here:
https://about.gitlab.com/2019/01/31/security-release-gitlab-11-dot-7-dot-3-released/

Security: 467b7cbe-257d-11e9-8573-001b217b3468

Approved by: ports-secteam (miwi)