Fix up Chef jig a bit to make sure noderole data stays sane-ish.
Add server flag to chef-server role.
Merge pull request #66 from VictorLowther/pull-req-master-adf59d76e7c4525496432dae4e35f36b067b56c2

https://github.com/crowbar/barclamp-chef/pull/66

Merged by devtool for cloudedge