nipy/nibabel — pull request #128 by matthew-brett (2012-05-16 23:34:48+00:00)
Title: BF: fix nasty bug for orientations and 0 columns

Getting orientations for columns of all zeros in an affine resulted in
numpy svd hanging. I realized in the mean time that the io_orientation
function was not returning the correct number of rows. Extend tests,
fix, improve docstrings.