Reference data used in pufferfish pre-print experiments

<p>This holds the reference data used in the pufferfish pre-print.  This includes a specific version of the human transcriptome, the human genome, and a collection of microbial genomes.  These references are also available from different public repositories, but these versions are uploaded here to ease reproducibility of the manuscript's tests, and because the references were pre-processed to replace ambiguous nucleotides with valid ones.</p>