Note for N4 issue update

[ntustison]

Once this pull request is merged to address this issue, the lines in fsl2antsrTransform.cpp will need to be updated from

  vnl_matrix<double> m_dir, m_ras_matrix;
  vnl_diag_matrix<double> m_scale, m_lps_to_ras;
  vnl_vector<double> v_origin, v_ras_offset;

to

  vnl_matrix_fixed<double, 3, 3> m_dir, m_ras_matrix;
  vnl_diag_matrix_fixed<double, 3> m_scale, m_lps_to_ras;
  vnl_vector_fixed<double, 3> v_origin, v_ras_offset;

to accommodate the recent update in ITKR.