Typeahead JS and CSS fixes

Ran it locally, hit a few little problems. Not wanting to commit bad code I went back and corrected it. Typeahead screenshot is attached.

Remember to run bundle install!
 
![screenshot 2014-09-18 19 17 25](https://cloud.githubusercontent.com/assets/4616233/4328812/eb19befe-3f8b-11e4-92c8-cbbbe3671748.png)