Reviewer Rob - Bulk provisioning scripts

Updated both the simple bulk provisioner and the `sstables` one to use the new DB schema.  Note that neither `cqlsh` nor `cassandra-cli` can print these tables out properly (`cassandra-cli` can [and should] be fixed by setting a schema configuration option, but I'll talk to you about that on Monday).

I even updated the docs... aren't I a good boy!