Merge pull request ruflin#1041 from ruflin/release-3.1.0

Prepare CHANGELOG and composer.json for 3.1.0 release

Merge pull request ruflin#1024 from ruflin/release-3.0.1

Release 3.0.1

Merge pull request ruflin#1021 from ruflin/release-3.0.0

Release 3.0.0

Merge pull request ruflin#996 from ruflin/3.0.0-beta1

Prepare 3.0.0-beta1 Release

Merge pull request ruflin#961 from ruflin/release-2.3.1

Release 2.3.1

Merge pull request ruflin#930 from ruflin/release-2.3.0

Release 2.3.0

Merge pull request ruflin#912 from ruflin/release-2.2.1

Release 2.2.1

Merge pull request ruflin#890 from ruflin/release-2.2.0

Release 2.2.0

Merge pull request ruflin#867 from ruflin/release-2.1.0

Prepare Release 2.1.0

Merge pull request ruflin#839 from ruflin/release-2.0.0

Release 2.0.0