Adds the GET overall_buckets API.
The REST end point is: GET
/_xpack/ml/anomaly_detectors/job_id/results/overall_buckets
The API returns overall bucket results. An overall bucket
is a summarized bucket result over multiple jobs.
It has the `bucket_span` of the longest job's `bucket_span`.
It also has an `overall_score` that is the `top_n` average of the
max anomaly scores per job.
relates elastic/x-pack-elasticsearch#2693
Original commit: elastic/x-pack-elasticsearch@ba6061482d
* [DOCS] Update ML APIs for Elasticsearch Reference
* [DOCS] Add X-Pack icon for ML APIs
* [DOCS] Add role attribute to ML APIs
Original commit: elastic/x-pack-elasticsearch@997ea39759
* [DOCS] Review of close job and job stats
* [DOCS] Add force close
* [DOCS] Remove invalid params from get records
* [DOCS] Remove invalid params from get buckets
* [DOCS] Job resource corrections
Original commit: elastic/x-pack-elasticsearch@bc68d05097
Dimitris Athanasiou
Deb Adair
Lisa Cawley
Sophie Chang