Added detection of packages that are new, or have changed from SFL -> EPL. This cannot distinguish such packages from those where we have reverted to using the MCL version after using an FCL version, but this is noted so the post-processing (by a real person) can take this into account.

Uncommented necessary line of code!

Made test for interesting packages consider % files churned. >30% is considered interesting. Adjusted the number of files added/removed that make a package interesting to offset the items added by the churn check.