[AS7-6398] Upgrade to HornetQ 2.3.0.CR1

* upgade to HornetQ 2.3.0.CR1
[AS7-6124] JGroups channel in pooled-connection-factory

* add a JGroupsChannelLocator that HornetQ RA can called
  back to get a JGroupsChannel for the JGroups stack defined
  by the pooled-connection-factory discovery-group
[AS7-6398] Upgrade to HornetQ 2.3.0.CR1

* factorize interceptors attributes' marshaller to AttributeMarshallers.INTERCEPTOR_MARSHALLER
[AS7-6409] replication-clustername iss on backup server

* set the replication-clustername only if the attribute is defined