Add comments, clean up code, add to success callback displaySuccess the code to remove any existing svg elements and to remove the 'hidden' class from the #detail sidebar.
Move html from #visualize event handler directly into index.html. Add class 'hidden' to #detail panel, to be removed by success callback in app.js.

 - Add li to #detail ul with id tags for d3 to target.
 - Add div for twitter timeline to be added (#tweets)
Change appearance of #detail sidebar by changing text and changing format of political score.

 - Represent d.score as a percentage
 - Change descriptive text from 'politicalness score' to '% of political hashtags'
 - multiply by 100 and parseInt d.score to get integer percentage
Add h2 to top of #viz div to label the graph with name of central user (from root of response obj).

 - Add function to add header to top of #viz
 - Get screen name from "name" attr of response object
Add to viz headline function - remove any preexisting headers from #viz.
Change svg margins to be smaller, change hover color to match orange highlights on Twitter's site (sandybrown)