Merge pull request #59 from cloudedge/pull-req-master-020275d22eae3bf8bf317a3e266e23b3a2cfa7f0

https://github.com/crowbar/barclamp-dns/pull/59

Merged by devtool for VictorLowther
Zap all .old files
Fix up the DNS recipe to properly handle partially-created nodes.
Use new v4 and v6 helpers.
Merge pull request #60 from VictorLowther/pull-req-master-fda77fb192c9c1d39e5891586544cf031c6d65bf

https://github.com/crowbar/barclamp-dns/pull/60

Merged by devtool for cloudedge