Move to itkmghio
This set of patches allow building and using the ITK version of MGHIO that has recent bug fixes:
https://github.com/Slicer/itkMGHImageIO/commit/48411ea73ac25a777ab2e038431d032b85f77330
Previous versions of BRAINSTools required special #pragma code when built inside of Slicer to properly use the Slicer version of MGHIO. That code caused conflicts with the standard ITK loading mechanisms. The pragmas are no longer needed, so the code is simpler now.
BRAINSTools also fixes problems with conversion to/from nii and nrrd files when some image orientations were present. Those bugs have been resolved.
Hans