INST: allow to install patches that are below the current version
INST: allow to install patches that are below the current version

Former-commit-id: ce93b338f6f7acd1abf9358457891a8a681d6ec0
Former-commit-id: cee04e106744d350376754ca4e8330d5abbc1f3f
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox