Forget an integer cast
Merge pull request #1461 from gem/fix-scenario-calculator

Added a missing integer cast
Taking advantage of the new riskloaders in commonlib
Removed the loaders tests
Merge pull request #1462 from gem/loaders

Taking advantage of the new riskloaders in commonlib
Merge branch 'master' of github.com:gem/oq-engine into event-loss-test
Fixed qatest_2