Update CoherentContracts.netkan

Now shows ModuleManager requirement.
Update CoherentContracts.netkan
CoherentContracts: JSON fixups.
Merge commit 'b66a023'

* commit 'b66a023':
  CoherentContracts: JSON fixups.
  Update CoherentContracts.netkan
  Update CoherentContracts.netkan