Not properly detecting ccr.gov as a redirect

[konklone]

It's because http://ccr.gov -> https://ccr.gov, even though https://ccr.gov -> https://www.sam.gov/[...].

We're marking a domain holistically as a "redirect" only if all 4 of its endpoints are either down or redirect externally. If one of the endpoints redirects internally, it's not flagged as a redirect.

This is because we want redirects within the domain, to e.g. /home/whatever, to not result in the domain being considered a redirector.

We can resolve this by marking redirects that change the protocol as different than internal redirects, and allow protocol changes to not disqualify a domain as being marked as a "redirect". This should be doable with minimal changes to the site-inspector 1.x branch.

[konklone]

Moving work to cisagov/pshtt#13