AXIOM-447: Change the Spring WS test cases so that they do real interop testing, with Axiom only being used on one side (either the client side or the server side), and SAAJ on the other side.

git-svn-id: https://svn.apache.org/repos/asf/webservices/axiom/trunk@1599373 13f79535-47bb-0310-9956-ffa450edef68