Use 'exec' for clean stunnel shutdown
Closes https://gitlab.com/gitlab-org/gitlab-development-kit/issues/128
Missing 'exec' caused Foreman not to terminate stunnel when shutting down.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Closes https://gitlab.com/gitlab-org/gitlab-development-kit/issues/128
Missing 'exec' caused Foreman not to terminate stunnel when shutting down.