calcs/risk/scenario_damage/core:

`create_outputs` should actually bloody return something. Ever heard of an
interface?
qa_tests/risk/scenario_damage/case_4/test:

Fixed a spelling mistake.
qa_tests/risk:

Use `helpers.run_risk_job` to run risk calcs for QA tests. This way, it is run
in the same process so we can set breakpoints, measure code coverage, etc.