Releasing

Sync with origin: git pull --ff-only
Bump version in package/manifest.json
Run tests: make test
Create package: make release
Publish package at https://chrome.google.com/webstore/devconsole
- Upload updated package
- Update descriptions for each language: make show-descriptions
Commit: git commit -a
Tag release: git tag -s xx -m "Release xx."
Push changes: git push && git push --tags