Import PostGIS functionality with CREATE EXTENSION
Import PostGIS functionality with CREATE EXTENSION


Former-commit-id: f0ef0cc1daf9340d4adcab18a8a9a54f7dced894 [formerly f0ef0cc1daf9340d4adcab18a8a9a54f7dced894 [formerly 74e07b24614e2ff4373efba6d684bf29b37bd686]]
Former-commit-id: 58d29a9a2996af89d0ed8df94a953aae90c4ef4b
Former-commit-id: a18ba0ccc310b91134564b0de73eaef49ab1b821
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine