Deprecation warning should mention that `unstub` has no replacement in new syntax
Created by: JonRowe
See https://github.com/rspec/rspec-mocks/issues/153#issuecomment-29692181 for background
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Created by: JonRowe
See https://github.com/rspec/rspec-mocks/issues/153#issuecomment-29692181 for background