Feature release 2.3.0

New features:
- add translations to XLIFF
- add schema management

Fixes:
- any fixes for PCHCQ
- add feature to chose own widget template
- fix migration

Hotfix release 2.2.1

- Fallback to null when array key is not set. This may happen when we have
  cleared the value to null and the core then clears the array entry.
- Remove branch alias.
- Fix for GitHub Actions: Deprecating save-state. Update the
  actions/checkout and actions/cache to version 3

Stable release 2.2.0

This brings full Contao 4.9 support.

Additionally there have been performance improvements
and various bugfixes.

Hotfix release 2.1.2

- Hotfix save empty string as null

Maintenance release

Update dependency constraints (Fixes #16)

Stable release 2.1.0

This brings full Contao 4 support.

Additionally there have been performance improvements
and various bugfixes.

Maintenance release

Code cosmetics and build updates

Stable release 2.0.0

Language update.