WIP add hint mac to database generation on node create
modify provisioner to add entries to dhcp database based on node hints
change hint to use new attrib approach
change hint to use attrib pattern
Merge pull request #237 from cloudedge/pull-req-master-66d40a815aa402d4c2c9bee71df46a05ed8e8f57

https://github.com/crowbar/barclamp-provisioner/pull/237

Merged by devtool for VictorLowther