write tar file to disk then gzip when uploading to ftp site
Merge pull request #10 from CraigPorter/ftp_compress

write tar file to disk then gzip when uploading to ftp site
allow single-letter strain name
Merge pull request #11 from CraigPorter/single-letter-strain

allow single-letter strain name
GPL
Merge pull request #12 from andrewjpage/master

GPL