Implemented download as a file by leveragin on the content_type
Implemented download as a file by leveragin on the content_type


Former-commit-id: dd020947296f6b32edf0312c9827cb524513dbb0 [formerly 3895beafef337d71c30747012c54518455fa143e]
Former-commit-id: f03367a566380188637ef073954066aa28627142
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine