anchor.diff:  - a core library
   - a REST/HTTP interface
   
  -IMPORTANT: Cassandra 2.2.0 or later is required. It is recommended to use the latest 2.2.x release if possible.
  +IMPORTANT: Cassandra {cassandra-version} or later is required. It is recommended to use the latest {cassandra-version}.x release if possible.
   
   === The core library
   
  
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: 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,subs="attributes"]
  ----
  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 {cassandra-version}.x cluster.
  
  == Client tools
  
  