Teiid 2657

Teiid-2657 removed the xom from the jboss distibution, and changed it to a module dependency.    However, when upgraded to the xom-1.2.5.jar, jaxen was removed, so jaxen was added back in as a module dependency.    When xom and jaxen were added to pom, needed to add exclusions for their dependents,  so they wouldn't be picked up in the kitting.