ACCUMULO-3355 Broke this IT in the process. Need to check a few times to give the tracer time to write to the table.
Merge branch '1.6'
ACCUMULO-3299 Ensure tests run properly scoped

  Ensure some tests which were not running, because of their name are running
  during the build. Made some MiniAccumuloCluster-based tests ITs, and attempted
  to prevent tests from writing to /tmp (use target/ instead).