Only download chromosomes or scaffolds from VectorBase, not both.
Merge branch 'master' of github.com:chapmanb/cloudbiolinux
Upgrade subread to 1.4.4.
Update Cosmic to v68. Fixes chapmanb/bcbio-nextgen#365. Use bgzipped and tabix indexed files for all associated variant references including dbSNP and other GATK bundle resources
Merge branch 'master' of github.com:chapmanb/cloudbiolinux