3.0.0

• breaking: Deprecate es5 preset. If you absolutely need it, you can
  install an older version via npm install eslint-config-sevenval@2
• breaking: The react preset has been merged into the default one. Instead
  of extending eslint-config-sevenval/react just use eslint-config-sevenval
• The preset is now based on eslint-config-react-app.