This fixes a regression introduced in #16646 where using Elasticsearch 
pre-v7.0 and alerting resulted in an error when trying to deserialize the 
response of total number of hits.
Total number of hits is not in use by the backend so we're removing it 
for now to make ES 6 and 7 being able to deserialize search responses 
without errors.

Closes #15622

* Gauge: began looking at gauge title

* Gauge: title improvements

* Minor progres

* Gauge: title improvements, still needs more tweaking

* Gauge: title is starting to work ok

* Use selectThemeVariant

* Remove unused type

* move datemath to grafana/ui

* don't reference @grafana/ui from its own component

Fixes #16880

When allow_embedding is false (default) the Grafana backend 
will set the http header `X-Frame-Options: deny` in all responses 
to non-static content which will instruct browser to not allow 
Grafana to be embedded in `<frame>`, `<iframe>`, 
`<embed>` or `<object>`.

Closes #14189

Several pkg/tsdb tests fail to compile on 32bit platforms due to
integer overflow.

Currently all API requests set Cache-control: no-cache to avoid browsers 
caching sensitive data. This fixes so that all responses returned from 
backend not are cached using http headers. The exception is the data proxy 
where we don't add these http headers in case datasource backend needs 
to control whether data can be cached or not.

Fixes #16845

Progress: #14714

* update single stat data model

* update single stat data model

* update single stat data model

* show limit default

* merge master

* change stat selector to single until #15954

* add tooltip

* begin children

* move options under display

* align gauge options

* add migration tests

* Docs: Updated changelog

* SingleStatPanels: show title if manual specified

* FieldPropEditor: Max should change max

* change stats to calcs in config

* remove prefix/suffix

* add test

* abort field cycle when passed the limit

* stub a better test

* move title to Field

* remove title

* try this again

* use element rather than grid position

* adding back console output to debug gridPos alternative

* less logging

* simplify

* subscribe/unsubscribe to event streams when view changes

* Panels: Minor change to lazy loading

* 4843 - Added reload endpoint for LDAP config

closes #4843

* Refactor to make the reload work after master drifted

Fixes #16833

Fix file modes for various html, svg and ts files.
These should not be executable (rpmlint complains).

Progress: #14714

* use ConfigEditor

* use ConfigEditor

* update readme

* make the jsondata generic

* datasource interface cleanup

* more types

* use PluginInclude

- add MSI generation to build process

A new parameter `queryMode` is added to the InfluxDB datasource to provide a way to use POST instead of GET when querying the database. This prevents to get any error when querying the database with a heavy request.
Default configuration is kept to GET for backward compatibility. Tests and documentation have been added for this new behaviour.

Datasources: Add pattern validation for time input on datasource config pages

* Added search-query-parser package

* Migrate search input field to react and enable current folter filtering

* Reveiw changes

* FIx tags

* Fix event handlers  passed to html elements directly

* noImplicitAny fix

* Debounce search method in search controller

* Search: have clear reset query as well

This fixes a regression introduced by #16724 when datasource is configured
to use HTTP method POST and testing the datasource which results in an
'options.headers is undefined'. Same error probably happens if datasource
is configured to use basic auth and testing datasource.

* speed up circleci build
* convert build.sh to functions and add args for different build types
* add yarn cache
* add build latest to packaging step
* fast build should not try to tag non-amd builds
* remove signing step for prs-and-branches

If Grafana rotates the user's auth token during a request to the data 
source proxy it will set the Set-Cookie header with new auth token in 
response before proxying the request to the datasource.
Before this fix the Set-Cookie response header was cleared after the 
proxied request was finished to make sure that proxied datasources 
cannot affect cookies in users browsers. This had the consequence 
of accidentally also clearing the new auth token set in Set-Cookie 
header.
With this fix the original Set-Cookie value in response header is now 
restored after the proxied datasource request is finished. The existing
logic of clearing Set-Cookie response header from proxied request 
have been left intact.

Fixes #16757

Adds a version disclaimer for the page parameter in folder/dashboard search docs.

Fixes #16827

This is the first step moving towards Explore supporting logs for 
more datasources than Loki. In the first step we move all the log 
processing from Loki into Explore.
- Make explore convert logs result returned from datasources to SeriesData, 
if needed, and for now convert SeriesData to LogsModel.
- Loki datasource query now returns SeriesData and all
processing have been moved into explore instead.
- Removed key from LogRowModel and use log row indexes as 
the unique key instead.
- Removed id from LogsModel since it looks like it's not in use.
- Introduced a new class FieldCache which is convenient to use when
looking up multiple fields and/or field types and series values.

Closes #16287

the WithSession wrapper handles retries and connection
management so the caller dont have to worry about it.