Changed the implementation for how a transformation is applied to the header.  Also restricted to rigid transformations and affine transformations with no shearing.
Changed the implementation for how a transformation is applied to the
header.  Also restricted to rigid transformations and affine
transformations with no shearing.


ghisvail/irtk-legacy,BioMedIA/irtk-legacy,BioMedIA/irtk-legacy,sk1712/IRTK,BioMedIA/IRTK,sk1712/IRTK,BioMedIA/irtk-legacy,sk1712/IRTK,BioMedIA/IRTK,BioMedIA/IRTK,BioMedIA/IRTK,ghisvail/irtk-legacy,BioMedIA/irtk-legacy,sk1712/IRTK,ghisvail/irtk-legacy,ghisvail/irtk-legacy