UPGRADE FROM 4.0 to 5.0

Elastica library changes

Elastica has been updated to version 5.1. Please consider their changelog for an upgrade guide.

API Changes

Removed sortIgnoreUnmapped support for Paginator. ignore_unmapped is not supported in ES 5.0 anymore.
Removed ttl and timestamp support in configuration. These attributes are not supported in ES 5.0 anymore.