unhappy path remission message
simplified convoluted yml/slim gumpf for links
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In response to the pen test, set cache headers as appropriate.
Merge pull request #431 from ministryofjustice/enhancement/no-cache

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Use BarclayCard test gateway on all hosts except where ENV == 'prod'
Merge pull request #433 from ministryofjustice/bug-fix/correct-barclaycard-env

Use BarclayCard test gateway on all hosts except where ENV == 'prod'
Jadu::Claim.create submits claims to Jadu.

Jadu::Claim.create is just a wrapper around the work of others
so the specs just assert the relevant methods are called on
the collaborator objects. I don't like testing with a lot of
doubles because it's brittle, but I also don't like duplicating
tests already extant. I have attended to the brittleness risk
by using instance_doubles with check the doubled object responds
to mocked methods.