re-added __init__.py in bin
re-added __init__.py in bin


Former-commit-id: 5d4fac79c9f43453f8de7abd50826147179f82d7 [formerly 919f2dbc85f429ae5db73ec5b490451bc33ca6b5]
Former-commit-id: 19c2c00717e35c4093a437e046359da354295f5b
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine