Really fix backwards compatibility for ejbd. The order of read and write can only ever be changed 'after' the version has been written.
NOTE: The best place to append new features is in org.apache.openejb.client.EJBRequest.Body

git-svn-id: https://svn.apache.org/repos/asf/tomee/tomee/trunk@1509131 13f79535-47bb-0310-9956-ffa450edef68