Allow another option in the business-model schema

"Both" is a valid option.
Remove empty "description-extra" from dashboard

This isn't needed.
Publish civil claims dashboard

Copy and data changes have been made to Civil Claims dashboard.
Cliff has run these past the Service Manager and they are happy
for it to be published and linked from the homepage
Merge pull request #783 from alphagov/publish-civil-claims-dashboard

Publish civil claims dashboard