BUG: msct_register_landmarks: inverted src and dest images
BUG: msct_register_landmarks: inverted src and dest images

Former-commit-id: 90b71f0bdd1af2c944203d9f1a5fdc2509fc7f4e [formerly 861d9bbd0a035c7ba4817127436ebf06f6a4b93c]
Former-commit-id: 559ec57ce36ccc3ddd784817fe6da03e38bacd1b
Former-commit-id: 9180a93a2b9f7d6f23305abe1ad6043dd8c0b7b1
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox