es-node-graphite 1.x fix, bugfix

* Add port option (default to 9200)
* Add request timeout configuration (default to 30s)
* Add flags to disable:
  * jvm stats
  * os stats
  * process stats
* Move URI request to function
* Add version detection (ES API Changed in 1.x)
* Reorder stats query string to match the order in the ES 1.1 docs
  * (For personal reasons)
* Remove some confusing stat being output
  * Some combination of gc collection time and old gen storage?
* Enumerate indices stats
* Typo - there is no 'network.transport.current_estab' key
  * checked back to 0.20.x for this
* Add uptime, which is confusing in that it should be somewhere else, since the 'os' key seems to imply it'd be the OS stats..?
* Add thread_pool stats