INST: changed installation folder creation
INST: changed installation folder creation

Former-commit-id: 67c4020c34057fa7bb84d3ac7d2982e75ab8411b [formerly 41dcf2f05d40bf8b7ac18b9181f996e85ff2f3fe]
Former-commit-id: 35bb4f0baf652be31aafc475d676499e7c61710d
Former-commit-id: e412e89a276d54f7a15d5cbe045b8ced516de11c
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox