Add an elastic search specific replacement for insight-graph which supports templating the results using MVEL to have cleaner JSON stats for storing in elastic search.  Also supports mbean operations queries.
Add a diff mode for stats so that we can track fine grained changes but only store changes
Add an optional global or per host lock on stats
Make sure stats are processed immediately
Fix possible NPE if destroying caused by an error when initializing
Make elasticsearch and insight clusters look nice in cluster-list