Miscellaneous - Integrate with CI

TODO (gkalpak): Add docs. Mention:

Testing on CI. Relevant files: scripts/ci/test-aio.sh, aio/aio-builds-setup/scripts/test.sh
Deploying from CI. Relevant files: .circleci/config.yml, scripts/ci/deploy.sh, aio/scripts/build-artifacts.sh, aio/scripts/deploy-to-firebase.sh