Add "user" command to gitlab-shell to dump user JSON metadata
Related to https://gitlab.com/gitlab-org/gitlab-ce/issues/23835 Allow gitlab shell to be used as an API to lookup gitlab API token
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Related to https://gitlab.com/gitlab-org/gitlab-ce/issues/23835 Allow gitlab shell to be used as an API to lookup gitlab API token