normalized counts saved by bcbioRNAseq

[rkhetani]

It would be great if bcbioRNAseq were to have an easy way to add a gene symbol column to the normalized counts table before writing it to file, in the template.

This would make sure it was consistent for all reports. It will also help with the Stem Cell Commons visualization folks not have to deal with guessing whether that column is present or not, and what it might be called.