updated scaffold controllers to reflect mew engines class heirarchy
Refactored scaffold controllers to fit new modes scheme after enginization.
Merge pull request #144 from dpaterson/pull-req-master-7e33931900fc7862c37e2e3334f4e95119a52f62

Refactor network scaffolding to match what enginization requires with namespacingRefactor network scaffolding to match what enginization requires with namespacing [1/1]
remove proposal dependencies - this will need more work to switch to barclamp_instances
find home for the interface test