AS7-6120 Add expression support to server-group management-subsystem-endpoint
Add core model testing of server group, including transformer testing
Fix misc issues revealed by testing
fix typos & values
Make sure capacity gets transformed to an int rather than a long
added SSL test & fixed write-attribute handler
add some more runtime tests
Fix problem with some services that were not being added to the SVH
AS7-6323 resteasy-jaxrs: NoClassDefFoundError: org/apache/commons/io/output/DeferredFileOutputStream
AS7-6120 Add transformer to domain level path resource
AS7-6120 Add expression support to /host=*/core-service=management/security-realm=*/authentication=plug-in:mechanism
AS7-6120 Allow expressions on a few more JVM attributes
AS7-6120 Improve handling of deployment 'enabled' attribute

Remove spurious validation from ContentAdd