URLs for updated business support finder app

Business support finder has been rewritten. The old urls are now just
redirects. This updated version tests a real query from the new app.

More info at https://github.com/alphagov/business-support-finder/pull/41
and https://www.pivotaltracker.com/story/show/57312614

The updated app is already live at https://www.gov.uk/business-finance-support-finder (and also on preview)