Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Working toward #14286 (moved).
Includes support for Rails 5.
Changelog: https://github.com/rubysherpas/paranoia/blob/879fd18caa46af70fceca2e8f46886b3eff072ec/CHANGELOG.md#220-2016-10-21
cc: @rymai