ani.rb: two fixes
ani.rb: two fixes

1. New correction to resemble the values from the original Goris,
Konstantinidis, et al publication (turn off with -N).
2. New option to increase the reported number of decimal positions (-d).

lmrodriguezr/enveomics,lmrodriguezr/enveomics,lmrodriguezr/enveomics,lmrodriguezr/enveomics