This commit does a few tidies of code, as well as adds the ability to
write all the kiwi output to disk as well as to the console. We can't
yet add this stuff to the credential DB because it's tied to machine,
where the creds that come out of kiwi are often tied to domains.
This also removes duplicate creds from the output list, and gets rid of
the auth id stuff from the output too (not sure why it was useful
before).
OJ
4fc258ec0c