added make samples script
passwords and verification codes are now just numeric
printing out kit id sheets now, still not done though so do not merge
added barcode generation code
added one more barcode check and removed some print statements
barcode uniqueness now checks ag_handout_kits as well
Merge pull request #318 from wasade/make_samples

added make samples script
Merge branch 'master' of git://github.com/qiime/qiime_web_app