convert numpy.float64 to float before inserting them in the db
convert numpy.float64 to float before inserting them in the db


Former-commit-id: c5979af3aace8f7a5b5e2096bc95c9fa84fd44ec [formerly dcbeb01d3115d8a431f60789339ef11358b6d683]
Former-commit-id: 51b2611d6ad6336f640657fd60a01f4dbd0f63ee
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine