Added dependencies so the simple UserAndFriends class executes.
Switch to Accumulo 1.6.0 to use new authentication object.
Basic sharding technique - hash the text then mod it.

This technique has a drawback if anything in the record changes, so does
the shard. Perhaps causing duplicate information in the key-store.
DRAFT of "Data Distribution Throughout the Accumulo Cluster"

This document is a work in progress. It's definitely not fully baked. If
you have comments, please create an issue.