removes file folder and tweet.txt file
removes analyze.js
creates bieber server side event, renders in browser
increase mongo db cap to 150,000 tweets
renders levine average sentiment in browser
renders top row of four artists in browser with real time average sentiment score
renders top row plus rhianna in browser with real time average sentiment score
Merge pull request #15 from scottjason/render-all-artist-scores

renders first five artists tweet stream and database stream sentiment average