ISPN-4870 Upgrade to JGroups 3.6.0.Final
ISPN-4913 Add a SKIP_INDEXING flag to HotRod for symmetry with embedded
ISPN-4914 Don't print spurious warning about the isolation attribute on
server startup
ISPN-4911 Add DMR operation for invoking the Mass Indexer
ISPN-4916 Add MassIndexer, XSite State Transfer and Partitioning
ops/attributes to the server RHQ plugin
ISPN-4675 Missing server configuration for remote executor thread pool

Add server configuration for the remote command executor and the total order executor.
Revert "Revert rebalancing per cache"

This reverts commit 8cbba22ae625c7dd3e8f5ff389b71f4b49aec2b4.