Accumulo Mini Cluster for local integration testing

There is no 1.4 branch for this... mini cluster doesn't exist in 1.4.

The mini cluster is a new module, but is not added to the parent pom so that it doesn't get built automatically.
Yeah, I didn't entirely trust that the size function would be 100% accurate... figured it was more realistic to actually iterate through the results like you normally would do. What do you think?