Add integrations/backdrop and tests

- backdrop module has production as a default.
- Should allow a simpler integration
- integrations/integration-end-point might not be the best way to handle scaling things up, but it works for now I think...
Use new backdrop integration

- Simplifies existing runtime in index.js and helps break up functions for testing purposes.
cat
Add fake timers so our time diff tests don't fail

- keep the clock at 20/7/2014 forever!
Turn off any winston logging for travis

Fix require issue for Q.
Merge pull request #18 from alphagov/feature/backdrop-integration

backdrop integration
@wip stagecraft email query