Merge pull request #360 from s0undt3ch/develop

Install the Debian keys
Merge pull request #365 from s0undt3ch/develop

Several Lint Fixes
Add `requests` as a required dependency for Debian installations.
`python-requests` is also available through squeeze backports
Install procps and pciutils which allows Docker bootstraps

See https://github.com/saltstack/salt-bootstrap/issues/366#issuecomment-39666813