Big cleanup
Big cleanup


Former-commit-id: 16e8b7f74f438a2b0f9702039d6b6ef079a29e4c [formerly 05ab84c8429b4c13edff051c66756fcd16e8db2d]
Former-commit-id: 36989a61411f724fde02481b3602a5dfe443cfb4
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine