[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>

src/datasource-zabbix/module.ts

@@ -0,0 +1,33 @@
+import { loadPluginCss } from '@grafana/runtime';
+import { ZabbixDatasource } from './datasource';
+import { ZabbixQueryController } from './query.controller';
+import { ZabbixDSConfigController } from './config.controller';
+import { ZabbixVariableQueryEditor } from './components/VariableQueryEditor';
+import './zabbixAlerting.service.js';
+import './add-metric-function.directive';
+import './metric-function-editor.directive';
+
+class ZabbixQueryOptionsController {
+  static templateUrl = 'datasource-zabbix/partials/query.options.html';
+}
+
+class ZabbixAnnotationsQueryController {
+  static templateUrl = 'datasource-zabbix/partials/annotations.editor.html';
+}
+
+ZabbixQueryController.templateUrl = 'datasource-zabbix/partials/query.editor.html';
+ZabbixDSConfigController.templateUrl = 'datasource-zabbix/partials/config.html';
+
+loadPluginCss({
+  dark: 'plugins/alexanderzobnin-zabbix-app/css/grafana-zabbix.dark.css',
+  light: 'plugins/alexanderzobnin-zabbix-app/css/grafana-zabbix.light.css'
+});
+
+export {
+  ZabbixDatasource as Datasource,
+  ZabbixDSConfigController as ConfigCtrl,
+  ZabbixQueryController as QueryCtrl,
+  ZabbixQueryOptionsController as QueryOptionsCtrl,
+  ZabbixAnnotationsQueryController as AnnotationsQueryCtrl,
+  ZabbixVariableQueryEditor as VariableQueryEditor,
+};