enh: added tutorial notebook
Merge pull request #576 from satra/enh/tutorial_notebook

enh: added tutorial notebook
fix: updated tutorial to include download of data
Merge pull request #577 from satra/enh/tutorial_notebook

fix: updated tutorial to include download of data
fix: mark's last name

thanks @arokem
Merge pull request #578 from mick-d/master

Fixed CalcCoregAffine and ApplyTransform in nipype/interfaces/spm/utils.py
fix: broken test to reflect interface changes.
Segment in SPM interface throws error.