Rawes

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* Removed tests package from setup.py (thanks [alisaifee](https://github.com/alisaifee))

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* Added connection pooling from [elasticsearch-py](https://github.com/elasticsearch/elasticsearch-py) (thanks [mishu-](https://github.com/mishu-))

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* Added JSON decoder support (thanks [adisbladis](https://github.com/adisbladis))
* Added JSON encoder argument to rawes.Elastic constructor

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* Python 2.6 compatibility fix (thanks [Simon Kelly](https://github.com/snopoke)!)

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* Added Python 3 http & https support (no thrift support yet for python 3) (thanks [adisbladis](https://github.com/adisbladis))
* Removed python-dateutil requirement in favor of pytz (due to Python 3 not supporting python-dateutil)

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* rawes now throws a rawes.elastic_exception.ElasticException on http status codes of >=400 by default. Removed rawes.Elastic "except_on_error" argument.