Add 8.0 package hint and Mailgun information
Added a hint about how to force installation of 8.0 packages, and also information on our Mailgun domain and IP address.
Fixes #451 (closed)
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Added a hint about how to force installation of 8.0 packages, and also information on our Mailgun domain and IP address.
Fixes #451 (closed)