Curator-opensearch

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

**Bug fix**

* Updated ``README.md`` to briefly explain what curator does 117 (untergeek)
* Fixed ``es_repo_mgr`` logging whitelist 119 (untergeek)
* Fixed absent ``months`` time-unit 120 (untergeek)
* Filter out ``.marvel-kibana`` when prefix is ``.marvel-`` 120 (untergeek)
* Clean up arg parsing code where redundancy exists 123 (untergeek)
* Properly divide debug from non-debug logging 125 (untergeek)
* Fixed ``show`` command bug caused by changes to command structure
126 (michaelweiser)

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

**Bug fix**

* Fixed the new logging when called by ``curator`` entrypoint.

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

**General**

* New! Allow user-specified date patterns: ``--timestring`` 111 (untergeek)
* New! Curate weekly indices (must use week of year) 111 (untergeek)
* New! Log output in logstash format ``--logformat logstash`` 111 (untergeek)
* Updated! Cleaner default logs (debug still shows everything) (untergeek)
* Improved! Dry runs are more visible in log output (untergeek)

Errata

* The ``--separator`` option was removed in lieu of user-specified date
patterns.
* Default ``--timestring`` for days: ``%Y.%m.%d`` (Same as before)
* Default ``--timestring`` for hours: ``%Y.%m.%d.%H`` (Same as before)
* Default ``--timestring`` for weeks: ``%Y.%W``

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

**Bug fix**

* Prefix not passed in ``get_object_list()`` 106 (untergeek)
* Use ``os.devnull`` instead of ``/dev/null`` for Windows 102 (untergeek)
* The http auth feature was erroneously omitted 100 (bbuchacher)

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

**Bug fix**

* This was a showstopper bug for anyone using RHEL/CentOS with a
Python 2.6 dependency for yum
* Python 2.6 does not like format calls without an index. 96 via 95
(untergeek)
* We won't talk about what happened to 1.1.1. No really. I hate git today :(

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

**General**

* Updated! New command structure
* New! Snapshot to fs or s3 82 (untergeek)
* New! Add/Remove indices to alias 82 via 86 (cschellenger)
* New! ``--exclude-pattern`` 80 (ekamil)
* New! (sort of) Restored ``--log-level`` support 73 (xavier-calland)
* New! show command-line options 82 via 68 (untergeek)
* New! Shard Allocation Routing 82 via 62 (nickethier)

**Bug fix**

* Fix ``--max_num_segments`` not being passed correctly 74 (untergeek)
* Change ``BUILD_NUMBER`` to ``CURATOR_BUILD_NUMBER`` in ``setup.py``
60 (mohabusama)
* Fix off-by-one error in time calculations 66 (untergeek)
* Fix testing with python3 92 (untergeek)

Errata

* Removed ``optparse`` compatibility. Now requires ``argparse``.