Release 4.0

A new release by @7h3Rabbit with some support from the rest of our community 💪

Breaking Changes

• config.py needs to be updated from SAMPLE-config.py.
• Required Python packages has been updated to latest version
• Tracking & Integrity Test requires more to work
• HTTP and Network - Make sure we include topdomain when www. is present
• Translations has been updated (Don't forget to include them when upgrading)

Changed

• CSS Test - Include raw output of test when specifying -o param
• HTML Test - Include raw output of test when specifying -o param
• Energy efficiency - Update reference values to 2022-12-16
• Energy Efficiency - Make it easier to calculate new percentile
• HTTP and Network - Make sure we include topdomain when www. is present
• Added new accessibility test, using Pa11y (Issues: 103, 143)
• Documentation - New and hopefully easier to understand and navigate
• Tracking & Integrity Test- Add Fathom to the list of accepted analytics tools
• Allow to run tests local version/offline (Issues: 91, 93, 94, 96, 97, 103)
• Yellow Lab Tools Test - Make it possible to use the command line version
• Add regression tests (Issues: 81, 85, 88)
• Make it easier to use webperf-core by your own scripts
• Standard files Test - Add support for 'application/json+feed'
• Add support to only show reviews that needs improvement
• CSS Test - Make it easier to understand WHERE the errors are found

Bug Fixes

• Bug - Help command should use return code 0
• Bug - Tracking & Integrity Test - Unable to load disconnect-services.json in tracking_validator.py
  (Thanks @jonasboman for reporting)
• Bug - HTTP and Network - When http3check.net not respond, fail test
  (Thanks @marcusosterberg and Slack Community)
• Bug - Security, data-protecting & Integrity (Webbkoll) is not working
  (Thanks Slack Community for reporting)
• Bug - Tracking and Privacy (Beta) not working on windows
  (Thanks Slack Community for reporting)
• Bug - Rating is displayed incorrectly in review

Full Changelog: 3.0...4.0