[maven-release-plugin] copy for tag jbox2d-2.3.0-BETA

[maven-release-plugin] copy for tag jbox2d-2.2.1.1

[maven-release-plugin] prepare release jbox2d-2.2.1.0

[maven-release-plugin] copy for tag jbox2d-2.2.1.0

[maven-release-plugin] copy for tag jbox2d-2.1.2.3

[maven-release-plugin] copy for tag jbox2d-2.1.2.2

tagging 2.1.2.1 update

committing changes to old version

adding tag for old version

[maven-release-plugin] copy for tag jbox2d-2.1.2.0