* master: (3328 commits)
  removes protoc from makefile
  changelog: note about closing #11681
  Adding Centrify configuration for Oauth
  refactor: moved stuff into new features dir manage-dashboards
  move: moved styleguide to admin
  fix: fixed singlestat test broken due to file move
  moved folders from features into the main feature folder they belong to
  Add jsonnet with grafonnet-lib to provisioning docs
  fix: Dashboard permissions now shows correctly, fixes #13201
  Update CHANGELOG.md
  redux: do not use redux logger middleware in production builds
  Allow oauth email attribute name to be configurable (#13006)
  Document required order for time series queries (#13204)
  refactor: changed AlertRuleItem pause action to callback
  Fix query builder queries for interval start
  renaming things in admin
  release 5.2.4
  changelog: release 5.2.4
  refactoring: custom scrollbars PR updated, #13175
  changelog: add notes about closing #13121
  ...