Convert VCF to PLINK tped and tfam.
###Example usages which will create myfile_out.tped and myfile_out.tfam files:
python vcf2tped.py myfile.vcf myfile_out
python vcf2tped.py myfile.vcf.gz myfile_out
#####Also possible to pipe to stdout:
python vcf2tped.py myfile.vcf.gz - > myfile_out.txt