Add ceo.decc and mrws.decc subdomains with initial mappings
Branch correction
Merge branch 'newmappings' of https://github.com/rjc123/redirector into newmappings
Add new decc yml files
Launch mappings for mwrs.decc.gov.uk
YAML for new DECC subdomains
Merge branch 'newmappings'

Conflicts:
	data/sites/decc_ceo.yml