Re-introduce "Send email to users" link in Admin area
This link was mistakenly removed during a CE-to-EE merge. We've added a view spec to ensure it doesn't happen again!
Closes gitlab-org/gitlab-ee#222
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
This link was mistakenly removed during a CE-to-EE merge. We've added a view spec to ensure it doesn't happen again!
Closes gitlab-org/gitlab-ee#222