Added validation for the event based bcr risk calculator
Added calculator
Updated doc
Merge branch 'bcr-event-based-validation' into bcr-event-based-calculator
Minor fixes
Added demo
Fixed test case
Merge branch 'bcr-event-based-calculator' of https://github.com/acerisara/oq-engine into bcr-event-based
qa tests. generate and pass seed to every calculator
Merge branch 'fix-1094846' into bcr-event-based
updated event_based test
added unit test for event based bcr
added seed to qa test for reproducibility
pep8 issue
update CELERY_IMPORTS
Merge pull request #990 from matley/bcr-event-based

BCR event based