REF: get_centerline: set remove temp folder to 0 by default
REF: get_centerline: set remove temp folder to 0 by default

Former-commit-id: 42ae8057215d36502a4fcec78f1192483a933a47 [formerly 336464f1f17fc043bb4851ce3ce1c518556f8081]
Former-commit-id: 9a68242f8d78f4cfd0c1eca3ab3a002a5a47a605
Former-commit-id: 8f900eb3107f9c739d47e56685e46ea5b97b8497
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox