ISPN-2647 ReplaceCommand does not perform any modifications if the entry ...

...was not yet transfered during rehashing
FOR REVIEW
Fix distributed case only. The replicated case still fails, so the test is still disabled.

* Add more trace logging
* Extend consistency tests to also cover putIfAbsent
* TxDistributionInterceptor will do a remoteGetBeforeWrite() if the command is conditional

Jira: https://issues.jboss.org/browse/ISPN-2647