Added fragility parameter
Added fragility parameter


Former-commit-id: 15c1b40bc6e695e5680d5aee6101033ce7616900 [formerly 55e00cf6bd8d53672e5b6077d575c743a32b1c67]
Former-commit-id: c8a67cd23a3111bdc63d5bbfcb3cbc00e6ab7d71
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine