We will always need a Chef 11 client, so include one.
Fix typo in setup_base_images.rb.
Zap all .old files
Refactor large swaths of the provisioner to use IPv6 where possible.

The main holdouts are DHCP (naturally) and Rubygems (because of evil).
We do not need a provisioner base.
Merge pull request #202 from VictorLowther/pull-req-master-fda77fb192c9c1d39e5891586544cf031c6d65bf

https://github.com/crowbar/barclamp-provisioner/pull/202

Merged by devtool for cloudedge