Merge pull request #1 from rjc123/master

All old departments
Rename fco-extras.csv to extras.csv
Rename extras.csv to fco-extras.csv
Rename fco-extras.csv to extras.csv
Merge pull request #2 from alphagov/data_split

Rename fco-extras.csv to extras.csv
Merge pull request #3 from rjc123/master

Fix 404s for Mainstream
Merge pull request #4 from rjc123/master

Revised FCO mappings
renamed fco_
Merge pull request #5 from rjc123/master

Fix latest news FCO
Merge pull request #6 from rjc123/master

Update FCO mapping
Merge pull request #7 from rjc123/master

Set up DH subdomains on redirector-data, new MOD mappings