Yammer message notifier

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Yammer message notifier",
  "short_name": "yamnotifier",
  "description": "Keep you updated with new Yammer messages! You can read, like and reply a message quickly.",
  "version": "0.1.1.3",
  "browser_action": {
    "default_icon": "images/icon.png",
    "default_popup": "views/popup.html",
    "default_title": "Yammer message notifier"
  },
  "options_page": "views/options.html",
  "background": {
    "scripts": [
      "javascript/faye-browser.js",
      "javascript/background.js"
    ]
  },
  "permissions": [
    "alarms",
    "tabs",
    "notifications",
    "cookies",
    "webRequest",
    "webRequestBlocking",
    "https://www.yammer.com/",
    "https://mug0.assets-yammer.com/"
  ],
  "content_security_policy": "script-src 'self' https://*.rt.yammer.com; object-src 'self'"
}