Allowing LDAP groups to be configure as Approvers for merge requests.
When using Gitlab in an enterprise environment with may developers there is a need to restrict who can approve merge requests as well as minimizing administration of Gitlab it self. A solution to this would be to allow LDAP groups to be used as merge request approvers. This will have the benefit of a one time configuration of the gitlab project(s) and any further administration is done in LDAP where users can be added/removed from the merge requests approvers role.
Users with many projects and many developers that need ease of use and low administration overhead.
Make sure these are completed before closing the issue, with a link to the relevant commit.