added missing import to openquake/job/__init__.py
added missing import to openquake/job/__init__.py


Former-commit-id: 89a83ca7037bdd8f9270550d9ea441305a159949 [formerly fcbcb66c29f485ed48a4547c8d7e9d4af0191172]
Former-commit-id: 6f8241a814561f13ad3cb4245dc13d9f2ae64668
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine