Release checklist

Copy this checklist to a new tracker story:

• Verify that the styleguide looks okay in IE11/Edge
• Update the styleguide with an upgrade guide
• Make sure the version number is what you expect it to be in package.json
• Update the changelog with the changes for the new release
• Archive and make previous styleguide a static resource for the new version's styleguide
• Cut a branch (e.g. v9) for PUI and PUI styleguide
• Create a new pipeline for the new (.e.g. v9) branch
• Run the CI job to tag the new version in GitHub, CI should publish on npm
• Publish the styleguide to styleguide.pivotal.io
• Send a release email to teams that use PUI (e.g. metrics, pivnet, uaa, toolsmiths)