Enforce policy only on certain types of changes


On a large existing codebase, turning this policy on is very disruptive. It would be nice if I could specify that the policy should only be applied to new files. That way, at least the problem doesn't get any worse and I can gradually go back to all the old code to add comments.
This could be done by adding options to the configuration dialog, which would correspond to each of the different change types which is exposed by the PendingChange class (e.g. PendingChange.IsAdd, PendingChange.IsEdit, etc.).