Curator-opensearch

-------------------

**General**

* Deprecated ``logstash_index_cleaner.py``
Use new ``curator.py`` instead (untergeek)
* new script change: ``curator.py`` (untergeek)
* new add index optimization (Lucene forceMerge) to reduce segments
and therefore memory usage. (untergeek)
* update refactor of args and several functions to streamline operation
and make it more readable (untergeek)
* update refactor further to clean up and allow immediate (and future)
portability (HonzaKral)

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**General**

* First version logged in ``CHANGELOG``
* new ``--disable-bloom-days`` feature requires 0.90.9+

http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/index-modules-codec.html#bloom-postings

This can save a lot of heap space on cold indexes (i.e. not actively
indexing documents)