add copyright
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
Split DNS database handling into its own recipe.

Make the other recipes attribute-driven while we are at it.
The method that the DNS database role is using to keep the database updated
is racy right now, that raciness will be resolved by updating how we
manage node role runs.
Merge pull request #61 from VictorLowther/pull-req-master-763d805705b2c4a304d3ae9606be913bd4cca504

https://github.com/crowbar/barclamp-dns/pull/61

Merged by devtool for cloudedge