CHANGELOG.md

• End-of-life: redirect developers to Chrome for Testing buildpack
• Explain the source of the chromedriver version in the build log when CHROMEDRIVER_VERSION is set
• Improve error message for download errors
• Update unzip step in bin/compile to remove superfluous directory from decompressed chromedriver path
• Update Google's URL to reflect new location for chromedriver downloads
• Remove Circle CI and add GitHub Action for simple CI
• Make bin/compile executable
• 4/6/2021 Remove Travis
• Introduce CHANGELOG.md