These scripts automate some tasks related to release process.

* __`relicence.py`__ rewrites licence headers in all non-empty Python files
* __`linkify-changelog.py`__ generates Markdown links to github issues/PRs in changelog
* __`bump-required-fw-versions.py`__ downloads latest firmware versions and updates trezorlib requirements
* __`build-coins-json.sh`__ generates `coins.json`, or checks if it is up-to-date
