Get Hit (H index in Twitter)

The H index is a measure of a researcher's popularity. Thanks to @AVallecillo's idea, I have implemented something similar for Twitter. The H index in Twitter (Hit) is a number that describes how popular someone is on Twitter, by looking at how many followers their followers have. The higher this number, the more popular the user is.

Computing the Hit may take a long time for very popular users. Please be patient.