ISPN-263 Handle cluster partitions
* refactored: moved cache specific logic from ClusterTopologyManagerImpl into the ClusterCacheStatus
* This makes it easier to take rebalance related decition at cache level.
wotk in progress
added basic split-merge functionality
more work
fixed tests
added new tests
ISPN-4420 Allow configuring keepalive for hotrod connections
- implemented functionality to determine multiple successive failures.
don't allow for stale data in an resurrected member.
ISPN-263 Handle cluster partitions
 - enhanced the test suite with various nodes failures
ISPN-263 Handle cluster partitions
 - allow configuration through XML
ISPN-263 Handle cluster partitions

* fixed test suite