Migrate to pbr

Change-Id: I5e5866232bd34664c822364434e9dcd5ad325b25
Signed-off-by: Paul Belanger <paul.belanger@polybeacon.com>
Switch to flake8

Change-Id: Ifa63e5d57d1f3add78e34eb8b0778b4a6e179813
Signed-off-by: Paul Belanger <paul.belanger@polybeacon.com>