Merge branch 'stable-3.7' into stable-3.8

* stable-3.7:
  Allow subscribing to the topic with custom group id
  Consume events-broker from source
  Clone also events-broker for build validation
  Fix issue with using cgit client to fetch without authentication

Change-Id: Ia877c010258941ae4b06e363c974ab0722cb1ca5
tree: 9f1e2a522ee88c3915da1ea0a122494ccfa51c39
  1. example-setup/
  2. src/
  3. .gitignore
  4. BUILD
  5. Jenkinsfile
  6. LICENSE