use of HdrHistogram.org's histogram for percentiles computation
use couchbase SDK 2.0 beta
nodes are not required to be in URI form anymore : List<String>
connect to the cluster using SDK 2.0, cleanup the connection as needed
clientHandler now keeps a Bucket reference (SDK 2.0)
the workload stores and uses the given Bucket to perform operations on the database
simple get/set workload, implemented with LegacyDocuments
advanced cas-aware workload, implemented with LegacyDocuments