OPT: updated generate_output_file to address issue #85 and also printv to print in color
OPT: fslview ending command does not display fname_in anymore, because not in the same space
REF: small changes
BUG : Fixed problem issue #80
TEST: changed file name
TEST: fixed bug
TEST: removed useless files
TEST: added snapshot
BUG: fixed bug related to parsing of gradientStep
REF: fixed gradientStep parsing
REF: minor changes
TEST: minor change
OPT : added -r and -v flag
OPT: removed hardcode for nb_iterations (issue #78)
Merge branch 'master' of https://github.com/neuropoly/spinalcordtoolbox into sct_extract_metric