Merge branch 'fix-minion-config-with-non-tmp-dir' of https://github.com/rach/packer into rach-fix-minion-config-with-non-tmp-dir

Conflicts:
	provisioner/salt-masterless/provisioner.go

provisioner/salt-masterless: Add setting for pillar folder 

builder/digitalocean: send a "shutdown" before snapshotting

This change adds base support for an openstack builder.
Thank you to Rackspace for providing cloud assets to complete this work
and @sam-falvo for working with us on the perigee/gophercloud changes.

Chef-solo provisioner first pass.