This version PRINTS OUT a GPI file

gen_gpi_file_gp2protein-v2.pl prints out my second version of a GPI
file, which is based in the GP2PROTEIN FILE.

The first version, gen_gpi_file_gp2protein.pl, is similar but WITHOUT
subroutines. It does not print out in GPI format.

A directory ``data`` has been added, which contains the required
gp2protein.dictyBase file.

The README file has also been updated. I added a section of questions
for Petra about some of the findings while writing this script.