Fixes case if data image, segmentation and labels are not in the same space (#1292)
Fixes case if data image, segmentation and labels are not in the same space (#1292)

* OPT: register_to_template: removed the check if data, seg and labels have different header (issue #1168)

* BUG: register_to_template: fixed minor bug


Former-commit-id: 46b8e07a282499c927d28c4f97e36ba96f73bf2f
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox