Elastic search backend implementation
Fix deploy script
Add async decorator to AbstractExecutor

Test Plan: Added test.

Reviewers: marcua

Reviewed By: marcua

Differential Revision: https://phabricator.locu.com/D6700
Fix monkey patching to stop throwing KeyErrors in threading.py

Test Plan: -

Reviewers: jblum, marcua

Reviewed By: marcua

Differential Revision: https://phabricator.locu.com/D6710
New barchart visualization using C3.js
Add feature branch clean to push script
Merge pull request #60 from Locu/script

Add feature branch clean to push script
Kronos stream copier and bulk inserter scripts
Fix push script feature branch assert

Test Plan: -

Reviewers: jblum

Reviewed By: jblum

Differential Revision: https://phabricator.locu.com/D6723
Add ability to filter streams by read latency

Test Plan: -

Reviewers: marcua

Reviewed By: marcua

Differential Revision: https://phabricator.locu.com/D6734
Clean up settings management for kronos tests

Test Plan: Existing tests all work.

Reviewers: marcua, jblum

Reviewed By: marcua

Differential Revision: https://phabricator.locu.com/D6736
Add board and stream list functionality
Merge pull request #58 from Locu/board-list

Add board and stream list functionality
2-space indent Elasticsearch backend

Test Plan: -

Reviewers: jblum

Reviewed By: jblum

Differential Revision: https://phabricator.locu.com/D6743
Remove broken pyelasticsearch dependency

Test Plan: -

Reviewers: marcua

Reviewed By: marcua

Differential Revision: https://phabricator.locu.com/D6745
Add limit optimizations to Cassandra queries + clean up configs

Summary: If limit=N, there's no point in fetching more than N events from each bucket.

Test Plan: -

Reviewers: marcua

Reviewed By: marcua

Differential Revision: https://phabricator.locu.com/D6758
Read settings from /etc/kronos/

Test Plan: -

Reviewers: marcua

Reviewed By: marcua

Differential Revision: https://phabricator.locu.com/D6762
Fix is_alive bug in Cassandra

Test Plan: -

Reviewers: marcua

Reviewed By: marcua

Differential Revision: https://phabricator.locu.com/D6763
Fix AJAX board 404 bug. Fixes #61
Merge pull request #64 from Locu/board404

Fix AJAX board 404 bug. Fixes #61