ISPN-4696 SuspectException kills operation on ClusterRegistryImpl

* Added retry for ClusterRegistry operations

https://issues.jboss.org/browse/ISPN-4696
I agree, the problem is we don't have a good solution atm for transactional caches with SuspectExceptions during a commit :( Let me add a preface that this implementation is just a stop gap solution until we can do something better.