Create AFINN-111.txt

AFINN is a list of English words rated for valence with an integer
between minus five (negative) and plus five (positive). The words have
been manually labeled by Finn Årup Nielsen in 2009-2011. The file
is tab-separated. There are two versions:

AFINN-111: Newest version with 2477 words and phrases.

AFINN-96: 1468 unique words and phrases on 1480 lines. Note that there
are 1480 lines, as some words are listed twice. The word list in not
entirely in alphabetic ordering.