add Matrix Integration option

Review Request #11219 — Created Oct. 14, 2020 and submitted — Latest diff uploaded

Information

rbintegrations
master

Reviewers

Admins can choose to add Matrix Integration.
This will send notifications to the registered matrix room
about new review requets and updates to existing ones.

Tested in RB4.
Edited Slack unit test cases to test Matrix integration.
All tests have passed except 2 of then complaining about
missing image attachment

tests with errors are:
- test_notify_new_review_request_with_image_file_attachment
- test_notify_updated_review_request_with_new_image_attachments


Commits

Files