fix:added files to data folder so doctest passes
fix:docstring removed
Merge pull request #894 from oesteban/enh/FreeSurferMRIPretess

enh: Freesurfer mri_pretess
Merge pull request #890 from oesteban/bug/fixRemoveNonEmptyDir

Not empty folder in NFS errors
Merge branch 'master' into experimental