get the list of hazard calculations ordered by last update (to allow the packager.sh to retrieve the last completed hazard calculation
get the list of hazard calculations ordered by last update (to allow the packager.sh to retrieve the last completed hazard calculation


Former-commit-id: ba66362808f1a3d78b862c3da7f62ed369e630ed
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine