Change meta description and intro copy
Remove question one and reorder questions
Add custom countries to doc checklist
Update custom country checklist copy
Update footer info
Add more exclusion countries for standard FCO intro
Update FCO and no embassy outcome copy
Lookup registration country.

Where the registrant is in a different country from the country of birth, the mapped registration country should be used.
Also use different intro for FCO result.
Update copy for FCO result
Merge pull request #223 from alphagov/register-a-birth

Register a birth overseas - amends