Organize change log for next developer release.
Remove that pesky newline at the end.
Stop collecting package file paths and sha digests.

For many CPAN distributions, that information is
wrong anyway, which causes Dist::Metadata to blow
up when we try to get the digest of a path that
doesn't exist.  We're not really using this info
so I'm going to stop collecting it.  Eventually,
I want to take it out of the schema entirely.