Notification of skips, show who added current song

Shows who skipped the current track as an announcement message:

![skip](https://f.cloud.github.com/assets/739442/808307/f5d7bab2-ee60-11e2-9c9c-4600d45e47c7.png)

Also shows who added the current track:

![autoplay](https://f.cloud.github.com/assets/739442/808324/5121c476-ee61-11e2-90fa-62b58ab67dd9.png) ![unusualbob](https://f.cloud.github.com/assets/739442/808336/b24d2510-ee61-11e2-8aa4-14a99827682f.png)

Also I updated the package.json to include redis since it was missing.