Vcf symlink

This is a pretty junky script for Operations and/or data-transfer to symlink a bunch of build's SNV and Indel files. It is unclear to me how to test this so the test case is just a use of the module.
Thanks Nathan. I thought I was clarifying the docs in a way that would minimally confuse those not familiar with regexes, but your example suggests that leaving regex support in is likely to be dangerous.