fixing freesurfer relative path outputs not valid
Merge branch 'master' into fix_freesurfer_abspath

* master:
  fix: added svg neurodebian logo
  fix: notebook links to latest version
  enh: updated tutorial
  fix: broken test to reflect interface changes.
  Slight correction to previous PR
  Fix SPM interfaces
  fix: mark's last name
  fix: updated tutorial to include download of data
  enh: added tutorial notebook
  each time I use an afni interface I have not been using for a long time I spend 4 hours fixing some bugs that goes down to base interface specs......
  fix tcorrmap for use of source_name, depends on recent fix cline_bug branch
  fix the TCorrMap histogram options
  3drefit does not accept -prefix option, since it operates on its own file now it will work if you give the same out_file name as in_file name however if you give no out filename it might not work if your infile is a .nii or .nii.gz since afni will make briks
Merge branch 'master' into fix_freesurfer_abspath
Merge pull request #979 from bpinsard/fix_freesurfer_abspath

Fix freesurfer abspath
html structure format corrections for example scripts
Merge pull request #980 from miykael/master

HTML structure format corrections for example scripts
Enable lowb greater than zero in b0_average
fix error
Added "Forward" to the list of software using Nipype.
Merge pull request #982 from chrisfilo/fix/forward_docs

Added "Forward" to the list of software using Nipype.
fixed ants ApplyTransformInputSpec

changed argstr for default_value to allow floats by using %g instead of
%g
Updated ApplyTransform Specs
Merge pull request #985 from blakedewey/master

fixed ants ApplyTransformInputSpec
Merge pull request #981 from oesteban/enh/ImproveLowbAverage

Improve lowb averaging