Buildbot

Bug fixes
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- Fixed missing builder force scheduler route `/builders/:builderid/force/:scheduler`.
- Fixed URL of WGSI dashboards to keep backward compatibility with the old non-React WSGI plugin.
- Fixed display of long property values by wrapping them

Bug fixes
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- Made Tags column in Builders page take less space when there are no tags.
- Fixed cropped change author avatar image in web UI.
- Correctly pluralize build count in build summaries in the web UI.
- The change details page no longer requires an additional mouse click to show the change details.
- Fixed showing misleading "Loading" spinner when a change has no builds.
- Fixed too small spacing in change header text in web UI.
- Fixed showing erroneous zero changes count in the web UI when loading changes.
- Cleaned up build and worker tabs in builders view in web UI.
- Improved visual separation between pending build count and build status in trigger build steps in web UI.

Changes
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- Buildbot has migrated to `quay.io` container registry for storing released container images. In order to migrate to the new registry container image name in `FROM` instruction in Dockerfiles needs to be adjusted to `quay.io/buildbot/buildbot-master` or `quay.io/buildbot/buildbot-worker`.
- The list of supported browsers has been updated to Chrome >=80, Firefox >= 80, Edge >=80, Safari >= 14, Opera >=67.

Features
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- Add a "Workers" tab to the Builder view listing workers that are assigned to this builder (7162)
- The text displayed in build links is now configurable and can use any build property. It was showing build number or branch and build number before.
- Changes and builds tables in various places in the web UI now have a button to load more items.

Bug fixes
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- Fixed ``GitPoller`` when repourl has the port specified (7822)
- Fixed ``ChoiceStringParameter`` fields with ``multiple`` would not store the selected values
- Fixed unnecessary trimming of spaces in logs showed in the web UI (7774)
- Fixed favicon colors on build views in the web UI
- Fixed the icon on the about page in the web UI
- Fixed a regression where builds in waterfall view were no longer linking to the build page.

Changes
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- Buildbot will now error when configured with multiple services of the same type are configured with the same name (6987)

Bug fixes
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- Transfer build steps (`FileUpload`, `DirectoryUpload`, `MultipleFileUpload`, `FileDownload`, and `StringDownload`) now
correctly remove destination on failure, no longer leaving partial content (2860)
- Fixed ReactUI when Buildbot is hosted behind a reverse proxy not at url's root (7260, 7746)
- Fixed build result color shown on builder's header in waterfall view
- Fixed cases where waterfall view could be squashed to a pixel high
- Improved flexibility of `scaling_waterfall` setting to support floating-point values for more condensed view.

Bug fixes
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- Fixed several occasional data update glitches in web frontend
- Fixed display of newly added builds in Workers view in the web frontend.

Bug fixes
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- Fixed a regression where ``GitPoller`` would no longer register new changes (regression introduced in 3.11.3 in 7554)