updates vis design

Closes #109 

![screen shot 2014-10-24 at 6 43 14 pm](https://cloud.githubusercontent.com/assets/1656824/4778387/521ce98c-5be8-11e4-81f2-4c1bc939d1f2.png)
![screen shot 2014-10-24 at 6 43 18 pm](https://cloud.githubusercontent.com/assets/1656824/4778388/53b4aece-5be8-11e4-952d-10ecef650ab6.png)