Merge pull request #65 from joachimdb/master

support for elasticsearch _analyze rest api
Merge pull request #66 from joachimdb/master

support for _cluster/health rest api
Merge pull request #67 from joachimdb/master

support for _cluster/state rest API
Change log updates
1.5.0-beta2
Back to dev version
beta2 is out
minor fix and cleanup
support for _nodes and _nodes/stats REST APIs