restructured and made it a module.  this will make it easier to install it as a command line utility
added a setup script, and updated the .gitignore file
got the blast_sort cli working
updated the readme, and added the main.py into the repo
added structure checking for the data file - now checks if there is a black
column in the second line.  If this is the case and the number of
columns is 3 - it checks if there is data in the 3rd column and then
sets that to be the data column.  this is done once at the beginning.
I think.
Merge pull request #2 from yarbelk/master

Made it an installable package.