tests so that we don't have to set JPA defaults in the JPA
ConfigurationProviderImpl.beforeConfigurationLoad, which is incompatible with
having JDO,etc providers in the same system. Eventually we should probably
recognize persistence.xml as a defaults file, but for now that's against our
previous contract of allowing a user to have a JDO,etc defaults file and a
persistence.xml in the same system. Also removed XML Transformer functionality
from XMLFactory, since we don't use it and it causes problems with Ant (this
seems to be an Ant+JDK 1.5 bug in Ant).
git-svn-id: https://svn.apache.org/repos/asf/incubator/openjpa/trunk@426634 13f79535-47bb-0310-9956-ffa450edef68