BUG: fix bug related to reading of info_label.txt + now the script doesn't crop the data according to the labels selected by the user anymore (estimates metric for all labels and then outputs the selected ones).
BUG: fix bug related to reading of info_label.txt + now the script doesn't crop the data according to the labels selected by the user anymore (estimates metric for all labels and then outputs the selected ones).

Former-commit-id: 2071c50054afc4158c8239631f2887aa4ede2ebc [formerly 856bac4c5f50214cabe3e53162f53b2c8bb6f323]
Former-commit-id: c5018485e4b6421dd4283f6e6445df2fc5e72cf7
Former-commit-id: 0f4573128928418cd76bd6a8a940c21040c76c7d
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox