ACCUMULO-3289 Add logging to discern between application and network pauses for bulkImportFiles.
ACCUMULO-3289 Increase memory as it appeared the one tserver might have had irregular timer thread activity
ACCUMULO-3332 Fix incorrect import in cloudstone slaves.py
ACCUMULO-3333 Pass in username and password to `accumulo shell`
ACCUMULO-3334 Fix arguments passed to TeraSortIngest by CloudStone4
Merge branch '1.5' into 1.6

Conflicts:
	test/system/bench/cloudstone1/cloudstone1.py
ACCUMULO-3167 Finally start working on moving MAC out of the IT base
ACCUMULO-3167 Move over SimpleMacITs to UnmanagedAccumuloIT
Transition the rest of the SimpleMacITs over to UnmanagedAccumuloIT where possible
Remove the rest of the SimpleMacIT tests and replace them with UnmanagedAccumuloIT

Made a new IT base class with no specifics on AccumuloClusters. Introduced
precedence for ITs to make their own MiniClusterHarness for starting a single
MAC instance instead of one per method.
Move test setup classes out from the rest of the actual tests asserting things.
Add a light wrapper to support a single MAC per test structure.
Some more documentation on why the ShardMiniClusterIT even exists
Move all of the harness code into its own package.
First attempt at using Java properties to configure what type of AccumuloCluster is used
Allow configuration of cluster to be specified via java properties file in addition to command line
Remove deprecation warnings and have AuditMessageIT clean up itself before/after tests
Add automatic table cleanup for tests which use uniqueNames()
CleanUpIT doesn't play nicely with an existing instance.
Move some tests back to MAC which are problematic