SAAJ:
* Eliminate usage of Axiom's internal setParent method.
* Use the new SAAJ test suite from Axiom.
* Fixed some bugs in the implementation.
* Removed two invalid test cases (that don't pass with the SAAJ reference implementation).

git-svn-id: https://svn.apache.org/repos/asf/axis/axis2/java/core/trunk@1609578 13f79535-47bb-0310-9956-ffa450edef68