ISPN-4467 Fix BulkUtil formatting
ISPN-4467 Bulk get keys should use a compatibility collator

* Use a different collator when compatibility is enabled which makes
the necessary transformations from POJO to byte arrays.
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.
ISPN-263 Handle cluster partitions

* add logic to handle split brains
* when a split brain happens, the consistent hash of the cache freezes till the nodes that disapeared ressurect
* the cluster enters degraded mode, i.e. only servers data that hasn't been affected by the split brain
ISPN-263 Handle cluster partitions
- implemented functionality to determine multiple successive failures
ISPN-263 Handle cluster partitions

* don't allow for stale data in an resurrected member as this messes the consistency guarantees the partition handling offers
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
ISPN-263 Handle cluster partitions

    * added user documentation