Adds the entries from the smallDNS server to the bwi dashboard

Adds an ajax call whenever the document is ready (using jquery) to load the entires in the DNS server and add them to the dropdown selector in the dashboard.

Loading the entries is simple because the dns server serializes the internal representation as json. The javascript script then gets it from the server, deserializes it, creates configurations for them, and adds them to the dropbown.

Requires manual editing of `js/config.js` to add the server's address.

End product looks like this:

![selectingrobotscropped](https://cloud.githubusercontent.com/assets/608083/4620220/7af02bf4-531d-11e4-9db8-67e12f9acac7.png)