BUG: Use itk::Math::Absolute instead of legacy itk::Math::abs in tests
BUG: Do not compile NrrdIO's sampleIO.c demo into the library
BUG: Derive nrrdio_SRCS from NrrdIO_Srcs.txt so the demo stays out of the library
BUG: Decode single-bit DICOM contiguously; validate PixelSpacing multiplicity
COMP: Drop legacy EXECUTABLE_OUTPUT_PATH/LIBRARY_OUTPUT_PATH in GDCM
COMP: Fix GDCM re-configuration writing libraries to /bin
BUG: Smooth structure tensor with an isotropic Gaussian kernel
ENH: Reject inputs too small for the landmark subsampling factor