Updated to use [official Elasticsearch Python API](http://www.elasticsearch.org/guide/en/elasticsearch/client/python-api/current/index.html)

Updated logging model to use external file (or STDERR), cleaner ISO8601 timestamp, reduce logging based on debug flag and not much else has changed.  Verified against Elasticsearch 0.90.9
Merge pull request #6 from untergeek/master

Updated to use the official Elasticsearch Python API