Prepare 2.3.0 release

Merge pull request #1988 from stloyd/changelog-22

Adjust changelog for release 2.2

Merge pull request #1968 from hwi/stloyd-patch-1

Mark version 2.0 as official

Merge pull request #1945 from stloyd/symfony-44-removal

Remove BC layer for Symfony 4.4

Prepare for pre-release to `2.0.0-BETA2`

Rename pre-release to `2.0.0-BETA1`

Maintain | Prepare for `1.4.4` release

Maintain | Prepare for release `1.4.3`

Prepare for release 1.4.2