anchor.diff:  For development or testing, the easiest way to setup Cassandra is to use the
   https://github.com/pcmanus/ccm[Cassandra Cluster Manager, CCM].
   
  -[source,bash]
  +[source,bash,subs="attributes"]
   ----
  -ccm create -v 2.2.3 hawkular
  +ccm create -v {cassandra-version} hawkular
   ccm populate -n 1
   ccm start
   ----
   
   These steps build and start a single node cluster of Cassandra. Note that while it is recommended to use ccm, it
  -is not necessary. You just need to make sure you have a running 2.2.x cluster.
  +is not necessary. You just need to make sure you have a running {cassandra-version}.x cluster.
   
   == Client tools
   
  
positive.code: = Hawkular Metrics, a storage engine for metric data
  :source-language: java
  
  ifdef::env-github[]
  [link=https://travis-ci.org/hawkular/hawkular-metrics]
  
negative.code: - a core library
  - a REST/HTTP interface
  
  IMPORTANT: Cassandra {cassandra-version} or later is required. It is recommended to use the latest {cassandra-version}.x release if possible.
  
  === The core library
  
  