tests/calcs/risk/event_based/core_test:

Changed some docstrings into comments, so we don't throw garbage into the
nosetests -v output.
calcs/risk/classical_bcr/core:

Safer unpacking of `output_containers` results.
calcs/risk/event_based/core:

In `output_containers`, mean and quantiles now come at the end.
calcs/risk/event_based_bcr/core:

Safer unpacking of `output_containers` results.
tests/calcs/risk/general_test:

`create_outputs` now does NOT create means and quantiles.

Before, it was creating a bunch of extra records that weren't needed.