packager.sh: make sure that the DB does not exist already
packager.sh: make sure that the DB does not exist already


Former-commit-id: cb4618e15032366ccb69f23bf0c13655a4122e97 [formerly 7c835900573755f670627f250570f13950f01917] [formerly 7c835900573755f670627f250570f13950f01917 [formerly 25e23bde551b817941252fc8b14350a6f5f21c96]]
Former-commit-id: b42d489d904a32248dfd1e79f2063a1827595c0b
Former-commit-id: f6825db76d54f501eac04202f84ea9a4f8539df1
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine