Add a deep_diff for us to use.
Trim out redundant data from what we will save on the wall.
Merge pull request #59 from VictorLowther/pull-req-master-21026a44e2c9fbbd5564c6f344b930bcb719c3d9

+2
Trim the amount of data that the Chef jig is saving to the node_role walls. [1/1]