Better logging for Elastic search operations

ResponseTimeout fixes
WorkflowCoordinator Error handling
Elastic Search documents with _size field

ResponseTimeoutSeconds fix, Improved error handling in WorkflowTaskCo…

…ordinator

.

version 1.8.3

Merge branch 'master' into dev

Merge pull request Netflix#451 from Netflix/responseTimeOutFix_and_gr…

…adle_cleanup

Removed the ResponseTimeout check during ack time and enabled during sweep

Merge pull request Netflix#441 from Netflix/revert-374-dev_optimize_u…

…pstream

Revert "Minimal adjust, Don't to index an empty task exec log and more things"

Merge pull request Netflix#434 from pablolmiranda/batch-fetch-for-cor…

…relationIDs

Adds a batch API to fetch workflows based on a correlation id list