ISPN-4384 CacheNotifierImplInitialTransferDistTest test instability

* Dist initial transfer could fail erroneously if remote/local batch
* completed at about the same time
ISPN-2956 Hot Rod conditional operations and transactional caches

* Transactional caches are required in order to be able to guarantee
correct retry logic for Hot Rod operations relying on conditional
operations, or operations where the previous value is returned.
* WARN messages have been added for when conditional or operations
needing previous value are executed against non-transactional caches.