Merge pull request #6 from nipy/master

Update my fork of nipype
Introduced an interface for ANTS command LaplacianThickness.
base code for new AddCSVRow interface
little advances
first working version
Merge branch 'master' into enh/AddCSVRow
more permissive treatment of rows with extra fields
make specs for #829
New AddCSVRow using pandas
Added pandas as requirement in documentation
Added pandas try except before execution
Updated auto test
Finished AddCSVRow

Methods _outputs and _add_output_traits were missing to provide a
fully IOBase-like interface.
Merge pull request #7 from nipy/master

Update my fork of nipype.
Added 1dmatrix_save parameter option to 3dvolreg interface.
Added warning in constructor and documentation
Fixing failing test
Interface to elastix

Still necessary to add interfaces to transformix and the parameters
file.
Fixed order in test docstring
Fetch upstream and Merge branch 'master' into enh/AddCSVRow