message: move the old files to a vendor folder
diff: "content_scripts": [
  {
  "matches": ["<all_urls>"],
  - "js": ["content.js"],
  + "js": ["vendor/atoms.js", "vendor/utils.js", "vendor/selenium-browserbot.js", "vendor/escape.js", "vendor/selenium-api.js", "vendor/locatorBuilders.js", "vendor/record-api.js", "vendor/record.js", "vendor/commands-api.js", "vendor/targetSelecter.js"],
  "match_about_blank": true,
  "all_frames": true
  },
  {
  "matches": ["<all_urls>"],
  - "js": ["polyfills.js", "start.js"],
  + "js": ["vendor/browser-polyfill.js", "vendor/prompt-injecter.js"],
  "match_about_blank": true,
  "all_frames": true,
  "run_at": "document_start"
  ],
  "background":
  {
  - "scripts": ["polyfills.js", "background.js"]
  + "scripts": ["vendor/browser-polyfill.js", "vendor/background.js"]
  }
  }
  