First start at adding in ClusterControl to the StandaloneAccumuloCluster
Get rid of the extra newline when we're trying to grab the pid
Get the miniaccumulo cluster tests working again after introducing MiniAccumuloClusterControl
Remove the notion of managed and unmanaged clusters; all clusters can be controlled.

Start trying to rework some of AccumuloClusterIT to be allow for more ITs
to run against an existing instance.
Avoid running DynamicThreadPoolsIT against a real cluster for now.
Start switching over some tests