update changelog
update changelog


Former-commit-id: 6000560fd04bf1ae62cefab0a84c43feaeb988d1 [formerly 0b9995188e299c6f3d5ef84066cd202777207e5f]
Former-commit-id: c2f60d6b771a41387478160fd4d2d89c218dcab7
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine