updated changelog
updated changelog


Former-commit-id: 5a28c66ea9beb5ece1898b3c745432eb3b5111c5 [formerly ad12121ece44dcae35f39cbed55a4421fc649e1c]
Former-commit-id: 09c7cb910305e8a4de6a58805a0c81e3c98124b6
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine