ISPN-2995 FineGrainedAtomicHashMap may not lock all the composite keys 

https://issues.jboss.org/browse/ISPN-2995

Instead of checking if a node is an owner of the composite keys, it checks for the ```deltaAwareValueKey```. 

In ```TxDistributionInterceptor``` and Pessimistic mode, the ```LockControlCommand``` was sent to the wrong owner.