ENH: Update elastix to https://github.com/SuperElastix/elastix/commit/5b554d4063888c44c27089d6d5836a89b23988f3 which fixes https://github.com/SuperElastix/elastix/issues/8 (Project should be defined in the top-level CMakeLists.txt) and thereby removed "elastix/src".
ENH: Update elastix to https://github.com/SuperElastix/elastix/commit/5b554d4063888c44c27089d6d5836a89b23988f3 which fixes https://github.com/SuperElastix/elastix/issues/8 (Project should be defined in the top-level CMakeLists.txt) and thereby removed "elastix/src".

SuperElastix/SuperElastix,kaspermarstal/SuperElastix,kaspermarstal/SuperElastix,SuperElastix/SuperElastix,SuperElastix/SuperElastix,kaspermarstal/SuperElastix,SuperElastix/SuperElastix