REF: added possibility to crop or not around landmarks during straightening
REF: added possibility to crop or not around landmarks during straightening

Former-commit-id: 49fb3ff5c96f7c211bbd1e7aaf73b6773124ce8c [formerly cd86db6af10f88eb59fac60c1dd21293d6919d23]
Former-commit-id: d16b0d2b33806bd0e90f0c5311c2df3000a3125d
Former-commit-id: 4e494e7a67e3dbde77eda2a5a70b41e5ad2d0972
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox