Merge pull request #625 from rjc123/newsites

Add Civil Service sites to transition app
Merge pull request #626 from rjc123/newsites

Add defra partial organisation
Revise known_sites tool to allow for focus on specific site abbrevs
Update domain checker to investigate www and non-www versions of domain in question
Configure PHE sites on transition app
Merge pull request #628 from rjc123/config-phe

Configure PHE sites on transition app
Adding three redirects for businesslink PDFs

Requested by DVLA - https://govuk.zendesk.com/agent/#/tickets/653587
be canonical
Merge pull request #629 from alphagov/add_more_businesslink_pdf_redirects

Adding three redirects for businesslink PDFs
Merge pull request #627 from rjc123/admin

Updates to some admin tools
[UKTI] Add ukti.gov.uk alias
Merge pull request #630 from rjc123/newsites

Add resources.civilservice.gov.uk as alias to main site
Configure archived PHE sites