Added some informative messages.
Added some informative messages.


Former-commit-id: a8b2243a62334fbfd6789cb1b1de3bfe93d65345 [formerly 6c0dfec3db1639734336c20fadf930e1e7218cb4]
Former-commit-id: 12189e9554748c86165405e5230ca4cd8e23b5d3
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine