Adding default.gem back in
Adding default.gem back in


Former-commit-id: 80364b53fd954c3e47c099dfc67ed7e32270ef26 [formerly cba206d51f6b3458a429cfa73724c6e7afbff768] [formerly cba206d51f6b3458a429cfa73724c6e7afbff768 [formerly 8e9f09f704f798ca07bd81a6ba7ab4f9754de53a]]
Former-commit-id: cff0a77fa0e7604d2164fd57b0089aab0c28f3f9
Former-commit-id: 6d556f64334f31840bedd953cfca204aa2f7e61c
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine