Updated the release notes
Updated the release notes


Former-commit-id: 9212d2d9705506b369168b2d830a8082ed1adf01 [formerly ef616e1dbe757681d62434b66c97c208c54434dd]
Former-commit-id: 87b9e22ab1924d758be6b8e6805daa4f637d1b53
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine