Merge pull request #246 from rjc123/newmappings

Updated FCO mapping
uncommented out smoke tests
REDIRECTOR environment variable for smoke_tests
gra.businesslink.gov.uk operated as a part of jobsearch
moved official-docs back into sites
dg_177260.pdf smoke test
removed TLD redirector test for data/tests/www.jobcentreplus.gov.uk.csv
removed preview and production redirector.alphagov.co.uk aliases

These are rarely used, apart from for impromtu testing, and multiply
up the number of hostnames nginx has to support
resurrected archive tests
Finally giving up on tna_offdocs

Contains too many errors, and doesn't match existing domains or sites.
Should be picked up by transition app/bouncer
businesslink akamai test page is stil hit quite often
Merge pull request #247 from rjc123/newmappings

Updated FCO Mappings
build popular.csv smoke tests from transition-stats
rebuilt popular.csv