changed ants registration settings to not create composite transforms
changed ants registration settings to not create composite transforms

poldracklab/fmriprep,chrisfilo/fmriprep,oesteban/fmriprep,shoshber/fmriprep,oesteban/preprocessing-workflow,shoshber/fmriprep,poldracklab/fmriprep,oesteban/fmriprep,oesteban/fmriprep,oesteban/preprocessing-workflow,poldracklab/fmriprep,poldracklab/preprocessing-workflow,poldracklab/preprocessing-workflow