Squashed 'pacb/pbcore/' content from commit 3585429

git-subtree-dir: pacb/pbcore
git-subtree-split: 3585429335b8ebf86b7edc0243b2ed55617b13e2
Merge commit '3dfd08f0bb7124136369bd21fc7560974943c320' as 'pacb/pbcore'
initial setting