Fixes #792
Added test for issue #792.
Fixed max-size eviction and write-behind race. Store process has now a copy of key-value pairs for records.
Removed BaseManager.executeLocally().
Added MapStoreTest.testSequentialWriteBehindMapStore()
Write-behind map-store calls are now guaranteed to be sequential.
Merge pull request #857 from mdogan/fix/2.x/issue-792

Fix for issue 792.