Feature release 2.3.0

New features:
- add translations to XLIFF
- add schema management
- add feature to chose own widget template

Fixes:
- any fixes for PCHCQ
- fix template
- fix picker

Stable release 2.2.0

This brings full Contao 4.9 support.

Additionally there have been performance improvements
and various bugfixes.

This is a maintenance release.

Refer to #27

This is a maintenance release.

This release has:
- Add the support for 2.0

Maintenance release

Code and build cosmetics

Hotfix release 2.0.3

- Move contents of database.sql to dca files

Bugfix release

- Update composer.json, change the php version and the license
- Update the travis.yml, change the php version
- Update the handling for empty values

Hotfix release:

- Merge PR #14, hotfix save NULL at empty values
- Merge PR #16, removed version_compare

Hotfix release:

- Merge PR #14, hotfix save NULL at empty values
- Merge PR #16, removed version_compare