added additional logging; minor change in test store classes
added new hintedHandoffSendHint test and remove old hintedHandOff test
refactored PerformParallelPutAction and related to ensure a slop is registered
more refactoring to make sure response is handled once and only once
added end-to-end test for slops
additional logging
additional slop fix
deprecate send hint serial
more commits on slop fix
 Allow update metadata to take both stores and cluster xml
atomic update of stores and cluster xml during rebalance
Added new end to end test for verifying the atomic update is consistent
on bootstrap
cleaned up code based off last code review
Made the getserverStateLocked explicit
adding the new test case this time around
Cleaned up the test
 more cleanup on the test
cleanup on tests
Fix unused variable
Adding a null check for the versioned value object in convertStringToObject in MetadataStore. This was causing a small problem while restarting the Voldemort server
Make sure elapsed time is not negative

System.nanoTime() can sometimes go backwards as it relies on
performance counters. This commit fixes exceptions that can
surface due to requestTime being negative. See github issue:
https://github.com/voldemort/voldemort/issues/139
Small bug fixes and cleanup in R2Store