Pin ffi on 1.8.7
Created by: JonRowe
Should fix https://travis-ci.org/rspec/rspec-expectations/jobs/361036510
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Created by: JonRowe
Should fix https://travis-ci.org/rspec/rspec-expectations/jobs/361036510