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