Merge pull request #20 from comperiosearch/es-timeseries-setup

Functions for Elasticsearch index rotation.
Merge pull request #21 from comperiosearch/es-timeseries-setup

Fixed typo in Python doc.
Make optimizing optional part of index rotation.

Optimization may be expensive and not always effective. Should not be default behaviour.
Merge branch 'master' into es-timeseries-setup
Script for moving all documents in an index to another.