[artifactory-release] Release version 2.2.0.RELEASE
Increment version to 2.2.1.BUILD-SNAPSHOT
Use the latest version of JDOM 2

As of JDOM 2.0.3, artifacts are now published under org.jdom:jdom2
where 2.0.5 is the latest version available
Merge branch 'wilkinsona-latest-jdom2'
Upgraded to HttpComponents 4.3.4.
Merge branch 'master' of github.com:spring-projects/spring-ws