EAP7: cluster setup needs Hibernate option hibernate.hbm2ddl.auto="none"

EAP7 should be supported as part of BxMS 6.4 release. It uses different major version of Hibernate (Hibernate 5 in EAP7 vs Hibernate 4 in EAP 6). This causes certain issues when deploying the BC into EAP 7 cluster.

To make the EAP7 cluster setup work, users first need to run the provided DDL scripts and then change the following in persistence.xml: hibernate.hbm2ddl.auto="none" (the default value is "update" which should not be used in production anyway).