Port of mk-add-project-moved-errors-for-git to EE
Resolves merge conflicts with EE, and fixes some EE-only specs.
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/11259
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Resolves merge conflicts with EE, and fixes some EE-only specs.
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/11259