Removed Railtie integration
typo
Headers defined as class constants
Basic rape middleware
Revert "Basic grape middleware"

This reverts commit 92758a107a12fee81168d6c4c415f4a990f81d04.
Added new middleware component to prevent non-authd requests from passing
factored out into separate files
provide correct params to POST
Merge pull request #2 from ministryofjustice/remove-railtie

Removed Railtie integration