Enable local_exists to find broken symlinks
Correctly construct the version directory with new version format
Fallback to downloading annotations if MySQL lookup fails.
Fix typo in ucsc_ensembl download backup
Move manifest creation into importable module for use in bcbio-nextgen
Updates to manifest creation: add homebrew installed packages, handle python when yolk not installed, sort debian base packages into separate manifest, skip dpkg when not on debian system
Merge branch 'master' of https://github.com/chapmanb/cloudbiolinux