OPT: fixed usage (size in voxel instead of mm) and fixed estimation of radius (forgot to add +1 on positive side of matrix)
DOC: updated CHANGES.md
NEW: new feature to create an image with only spinal cord detection
TEST: testing protocol for propseg
Merge branch 'master' of https://github.com/neuropoly/spinalcordtoolbox
REF: fixed debug mode
REF: fixed bug on debug mode again
DEV: shift atlas and match geometry of template (issue #221)
BUG: fixed usage
DEV: integrated crop_atlas into validate_atlas batch for more clarity
DEV: updated files for atlas validation
OPT: do not remove values >0 for computing metrics (in case there are neg values)
DEV: minor improvements in atlas validation
BUG: fixed name issue when converting from nii to volume-viewer
Merge branch 'master' of https://github.com/neuropoly/spinalcordtoolbox into sct_extract_metric

Conflicts:
	scripts/sct_extract_metric.py