Custom Pomposity metric, Jacard is not pertinent

Jacard Index between the Corpus and the incoming tweet is not an apt
indicator of Pomposity.

Pomposity, `p` is well defined in the interval `0 < p < 1`, however if
we treat Jacard `J` as `p` we risk an out of bound condition `p > 1`
when `|Corpus|` is much larger.

So in the new approach towards the score, the tweet is cleaned from Stop
Words and matched with the corpus.

Mathematically

```math
    p = |(tweet - (tweet n stopWrods)) n Corpus|/|(tweet n stopWrods)|
```