PLF-5897 : Rename jboss.partition.name => exo.cluster.partition.name
PLF-4469 : Move JCR dialect in JCR config part (more logical)
PLF-4469 : Cleanup
PLF-4469, PLF-5897 : Jgroups TCP vs UDP configuration
* UDP is by default
* TCP is activated by an exo profile (cluster-jgroups-tcp in standalone-exo-cluster.xml)
* Specific groups config files can be set with system properties or in exo.properties with something like :

exo.jcr.cluster.jgroups.config=${gatein.conf.dir}/jgroups/jgroups-jcr.xml
exo.jcr.cluster.jgroups.config.url=file:${exo.jcr.cluster.jgroups.config}
exo.idm.cluster.jgroups.config=${gatein.conf.dir}/jgroups/jgroups-idm.xml