fixing travis kill that occurs when test_all does not send output for more than 10 minutes
fixing travis kill that occurs when test_all does not send output for more than 10 minutes


Former-commit-id: 3530b98dd5bbbfafa2d5457beb846dd0bc5191ca
Former-commit-id: e3558f0f04430ca43fc5d70f1b9fef064fdec0fe
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox