Updated CHANGES.md
Updated CHANGES.md


Former-commit-id: 1f13c3ba384585ed711df4fa4216f696addf004d
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox