[Backend] Merge 'master' changes into the backend (#875)

* CI: fix shellcheck issues (#789)

Signed-off-by: Mario Trangoni <mjtrangoni@gmail.com>

* annotations: fix options in grafana 6.x, fix #813

* fix function editor in Grafana 6.4, closes #810

* add typings for grafana packages

* Add $__range_series variable for calculating function over the whole series, #531

* fix tests

* Don't set alert styles for react panels, fix #823

* docs: add range variables

* docs: percentile reference

* fix codespell

* update packages (build with node 12)

* update circleci node image to 12

* fix test configuration (babel)

* Fix 817 (#851)

* problems: update panel schema

* update packages (build with node 12)

* problems: use datasource from target

* problems: fix query editor after schema update

* problems: fix list layout

* update circleci node image to 12

* fix tests

* build(deps-dev): bump lodash from 4.17.10 to 4.17.13 (#852)

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.10 to 4.17.13.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](https://github.com/lodash/lodash/compare/4.17.10...4.17.13)

Signed-off-by: dependabot[bot] <support@github.com>

* fix packages security alerts

* problems: fix tags adding and removal

* fix adding func from typeahead, closes #468

* update change log

* bump plugin version to 3.10.5

* problems: fix tag removal (list layout)

* Fix percentile() function, closes #862 (#863)

Like the other aggregation functions, the datapoints need to be sorted in
time before calling groupBy_perf().

* Update copyright, happy New Year!

* fix not acknowledged problem color with a message (#858)

* fix not acknowledged problem color with a message

* fix not acknowledged problem color with a message, closes #857

* Variable query editor (#856)

* refactor: convert module to typescript

* refactor: covert utils to typescript

* variable query editor WIP

* variable editor: fix type error after grafana/ui update

* variable editor: use FormLabel from grafana/ui

* variable editor: refactor

* variable editor: input validation and highlights

* variable editor: fix tests

* variable query: fix backward compatibility with empty queries

* fix linter errors

* variable editor: fix variable replacement in queries

* Fixes for backend

Co-authored-by: Mario Trangoni <mario@mariotrangoni.de>
Co-authored-by: Alexander Zobnin <alexanderzobnin@gmail.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Mark Reibert <mreibert@netskope.com>
Co-authored-by: memfiz <arnis.civciss@gmail.com>

CHANGELOG.md

@@ -6,8 +6,18 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## Unreleased
+
+## [3.10.5] - 2019-12-26
 ### Added
 - SLA over time graphs, [#728](https://github.com/alexanderzobnin/grafana-zabbix/issues/728)
+- Additional time ranges in functions, [#531](https://github.com/alexanderzobnin/grafana-zabbix/issues/531)
+
+### Fixed
+- Problems panel: query editor broken in Grafana 6.4, [#817](https://github.com/alexanderzobnin/grafana-zabbix/issues/817)
+- Datasource: function editor is not working, [#810](https://github.com/alexanderzobnin/grafana-zabbix/issues/810)
+- Datasource: cannot add a function to query from typeahead, [#468](https://github.com/alexanderzobnin/grafana-zabbix/issues/468)
+- Datasource: annotations editor broken in Grafana 6.x, [#813](https://github.com/alexanderzobnin/grafana-zabbix/issues/813)
+- React plugins issue, [#823](https://github.com/alexanderzobnin/grafana-zabbix/issues/823)
 
 ## [3.10.4] - 2019-08-08
 ### Fixed