Add initial role metadata for the DNS roles.
Merge pull request #54 from VictorLowther/pull-req-master-dda46b22e196800cd48f79a273d87621c71cbbfe

https://github.com/crowbar/barclamp-dns/pull/54

Merged by devtool for VictorLowther
Get rid of list_networks call.
Fix up dependencies for the DNS barclamp roles.
Update bind9 recipe to work with the new network barclamp.
Merge pull request #55 from VictorLowther/pull-req-master-cf6cf08bb7869606011fdde39fb5680b75dc0997

https://github.com/crowbar/barclamp-dns/pull/55

Merged by devtool for cloudedge