Adding extract.sh simple tool to convert vcf into easy to work with format for R
Adding script which takes 3 vcfs and makes a venn diagram out of them.
Minor script changes
--parameterized makeVenns.R so that it takes accepts a list of files on the command line
--modified makeVennFrom3Plots.sh so that it uses Rscript instead of R.
Merge branch '1v1compare'
--merging in a script to generate a plot from a trio of vcfs