DefaultRecordStore refactorings
Merge branch 'maintenance-3.x' of https://github.com/hazelcast/hazelcast into maintenance-3.x
Merge branch 'maintenance-3.x' of https://github.com/hazelcast/hazelcast into maintenance-3.x
Merge pull request #3720 from ahmetmircik/new/3.3.2/drs_refactor

DefaultRecordStore code refactorings