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Fix: Log close (ie flush) was done too early, before final shutdown log

closes #12453

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Revert "auth proxy: use real ip when validating white listed ip's"

Make colorization of prefix and postfix optional in singlestat

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Fix footer CSS issue

* Karma to Jest: viewstate_srv

* Karma to Jest: annotations_srv

* Remove comments

* Karma to Jest: series_override_ctrl

* Remove unnecessary code

* Class to function and fix lint error

* Fix ngInject

fix: log close/flush was done too early, before server shutdown log message was called, fixes #12438

* Begin Karma 2 Jest: value_select_dropdown

* Add return for Promise

* Remove Karma test

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login: fix layout issues

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docs: update installation instructions

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Set correct text in drop down when variable is present in url

* Webpack 4

* webpack: force angular version 1.6 as 1.7 has removed a legacy feature toggle Grafana needs, switched from awesome-typescript-loader to ts-loader & forked ts checker

* Webpack 4

* webpack: force angular version 1.6 as 1.7 has removed a legacy feature toggle Grafana needs, switched from awesome-typescript-loader to ts-loader & forked ts checker

* upgrade ts loader

* simplified splitChunks

* upgrade circle node image to v8

* webpack: minor changes, using the new mode option, removed unused awesome-typescript loader, investigating karma issue but no solution yet

* fix: change angular mocks version restriction to be more strict

* add babel-loader for HMR support, fix karma debug runner

* babel-loader to yarn.lock

* webpack: changed from ExtractTextPlugin  to MiniCssExtractPlugin, and updated the minification step to use new webpack4 optimization config section

* webpack: remove css minifcation from general css processing as it's done in the webpack optimization step

* limit vendors chunk to .ts and .js files

* fix: removed typescript compile error, wanted to see if we still got test failure for that

* tech: upgrade uglify-js, should be faster now