Fix the wan replication bug that propagates deletes back to other instances
Revert "Fix the wan replication bug that propagates deletes back to other instances"

This reverts commit 700524e287679429e9441308c49b4129d0f1a1b9.
Fix the wan replication bug that propagates deletes back to other wan instances
Also other usages of potential NPE caused by InteralPartition.getOwner have been checked
Merge pull request #1557 from pveentjer/fix/npe-mapservice-createlocalmapstats

Potential NPE caused by InteralPartition.getOwner
code cleanup
HzClusterUtil update
Merge pull request #1550 from jagliot/master

Fix the wan replication bug that propagates deletes back to other wan instance
Merge pull request #1558 from Danny-Hazelcast/HzClusterUtil

HzClusterUtil update
Added member attributes and extended ExecutorService to support execution of tasks based on attributes
Added commandline override for attributes
Fixed bugs due to comments
Merged into latest version
Fixed a client unittest
Fixed member attributed after nio client changes