Update gitlab shell to corresponding version
This prevents people upgrading to a to recent version of GitLab Shell as happend in https://gitlab.com/gitlab-org/gitlab-ce/issues/700
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
This prevents people upgrading to a to recent version of GitLab Shell as happend in https://gitlab.com/gitlab-org/gitlab-ce/issues/700