[maven-release-plugin] copy for tag archiva-2.2.2

Use JPA as default and only database backend

Remove the JDO dependencies and set the JPA implementation as only
database alternative and default implementation. Uses the same database
as JDO before.

[maven-release-plugin] copy for tag archiva-2.2.1

[maven-release-plugin] copy for tag archiva-2.2.0

[maven-release-plugin] copy for tag archiva-2.1.1

[maven-release-plugin] copy for tag archiva-2.1.0

[maven-release-plugin] copy for tag archiva-1.3.9

[maven-release-plugin] copy for tag archiva-1.3.8