TEZ-1555. TestTezClientUtils.validateSetTezJarLocalResourcesDefinedButEmpty failing on Windows (Prakash Ramachandran via bikas)
TEZ-1624. Flaky tests in TestContainerReuse due to race condition in DelayedContainerManager thread  (Rajesh Balamohan)
TEZ-1609. Add hostname to logIdentifiers of fetchers for easy debugging  (Rajesh Balamohan)
Modified CHANGES.txt to have TEZ-1609 in 0.6