Updated the release notes
Updated the release notes


Former-commit-id: 934a91ab207425c6bc21a28479ea6bcb0e0e5ef7 [formerly 42e4435f8de804eea802cf0cc3a3dac4232a0df6]
Former-commit-id: 27366da3dc5d20ce3c280166830a7431c7b4c06a
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine