Add option reverse=True to sorted friends list, to sort in descending order from largest to smallest num followers
Modified score method to return score.score, rather than assign it directly to object. /display route assigns friend.SCORE to returned value.

Was returning friend.SCORE = None because score() originally did not return a value.
WIP: Use OOP and namespace to access data_viz.js VIZ object and call data visualization on demand.
Modify flask_server /display route to return json.dumps list of objects, instead of using list comprehension and return a list.

Gave TypeError: List type not callable when I tried to pass a list of JSON objects.
Pass JSON response data to createVisualization method of VIZ object. Returns visualization of 50 most influential friends.

 - Use a d3 linear scale to scale followers for radius.
 - create variable max_followers to establish the greater follower number in the data.
 - Circles are all black, some are edging off the screen. WIP