add top_hit metric

[scampi]

Backports PR #7302

Commit 1:
add top_hits aggregation

• Original sha: 22bab62
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-05-26T22:02:08Z

Commit 2:
support nested fields

• Original sha: 8aef2b8
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-06-11T14:57:35Z

Commit 3:
added choice of the order and select by default the index pattern associated time field

• Original sha: 9791ac5
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-06-14T21:08:00Z

Commit 4:
improved parameters name and changed aggregation from latest to top to better reflect what this aggregation may accomplish

• Original sha: 692f41c
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-06-22T20:32:12Z

Commit 5:
made variable a constant

• Original sha: 39cddab
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-07-01T22:42:13Z

Commit 6:
use shorter name for variable

• Original sha: c6494cc
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-07-27T08:50:44Z

Commit 7:
prevent to sort terms on top_hits

• Original sha: b365ddc
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-08-28T09:47:47Z

Commit 8:
Added the top_hits agg to line/pie/tile vis. Added support for function in prop_filter to allow more flexibility when filtering the list of values. The _term order is now the default ordering instead of _custom.

• Original sha: be44e90
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-09-19T14:53:48Z

Commit 9:
simplified tests

• Original sha: 43767f0
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-10-11T09:29:11Z

Commit 10:
changed as per code review

• Original sha: 53469d5
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-10-11T21:49:36Z

Commit 11:
Top Hit should support all field types on the metric vis

• Original sha: 20be950
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-10-17T21:18:31Z

Commit 12:
renamed metric to top hit

• Original sha: 20cbb12
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-10-17T21:28:30Z

Commit 13:
check if there is any result from buckets

• Original sha: b99d6c7
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-10-18T09:13:19Z

Commit 14:
support scripted fields

• Original sha: f79cdc1
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-10-23T20:58:55Z

Commit 15:
Merge branch 'master' of github.com:elastic/kibana into latest-value

• Original sha: 82060ce
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-11-01T09:47:19Z

Commit 16:
Merge branch 'master' of github.com:elastic/kibana into latest-value

• Original sha: 2577298
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-11-12T11:30:42Z

Commit 17:

• added logic for trying to get the field value from the source or from a
  doc_values field.
• added onlyAggregatable option for a field agg param to decide whether
  or not to retain only aggregatable fields.

• Original sha: 6a2bc01
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-11-13T12:34:10Z

Commit 18:
improved loops in getValuesAtPath method

• Original sha: 991864c
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-11-16T10:10:28Z

Commit 19:
Merge branch 'master' of github.com:elastic/kibana into latest-value

• Original sha: bc1c90a
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-11-17T23:51:13Z

Commit 20:
do not try to get the doc_values field of an IP field

• Original sha: d697f11
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-11-18T00:49:34Z

Commit 21:
improved field tests on the onlyAggregatable option

• Original sha: c2249e5
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-11-18T01:08:34Z

Commit 22:
use indexPattern.formatField to get all the values at a given path

• Original sha: f4200e1
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-11-19T23:02:18Z

Commit 23:
do not show the analyzed warning

• Original sha: 2dda53d
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-11-19T23:30:59Z

Commit 24:
support to sort on scripted field

• Original sha: eda9610
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-11-19T23:52:15Z

Commit 25:
corrected tests and rely on the field's formatter instead of trying to return a nice string

• Original sha: b465438
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-11-20T14:40:43Z

Commit 26:
do not rely on init_default_field_props to set the doc_values property

• Original sha: 19e2104
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-11-21T23:11:29Z

Commit 27:
added test for the doc_values property

• Original sha: fd323f3
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-11-23T10:04:16Z

Commit 28:
Merge branch 'master' of github.com:elastic/kibana into latest-value

• Original sha: cfed72e
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-12-05T15:47:45Z

Commit 29:

• corrected source formatter
• add option to show/hide analyzed warning of a field

• Original sha: 3090182
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-12-05T22:40:14Z

Commit 30:
set the default value of the showAnalyzedWarning in fieldparam

• Original sha: 0d924fc
• Authored by Stéphane Campinas stephane.campinas@gmail.com on 2016-12-08T16:29:46Z

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[elasticmachine]

Can one of the admins verify this patch?