Document how to remove assignees, labels, and milestones form the issue and MRs API (!3591) · Merge requests · GitLab.org / GitLab · GitLab

Achilleas Pipinellis - OOO until November 25th (parental leave) requested to merge docs/api-nil-ee into master Nov 30, 2017

What does this MR do?

CE port https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/15664