BF: update call to savemat for compatibility
BF: update call to savemat for compatibility

Latest scipy assumes oned_as='row' default.  Enforce in savemat call

nipy/nireg,alexis-roche/nireg,nipy/nireg,bthirion/nipy,arokem/nipy,alexis-roche/nipy,arokem/nipy,alexis-roche/nireg,alexis-roche/register,bthirion/nipy,alexis-roche/niseg,bthirion/nipy,alexis-roche/nipy,bthirion/nipy,alexis-roche/register,arokem/nipy,alexis-roche/niseg,alexis-roche/nipy,arokem/nipy,alexis-roche/register,alexis-roche/nipy