DOC: Various clean up an improvements to docstrings.
DOC: Various clean up an improvements to docstrings.

dgellis90/nipype,Leoniela/nipype,wanderine/nipype,mick-d/nipype,pearsonlab/nipype,gerddie/nipype,carlohamalainen/nipype,blakedewey/nipype,blakedewey/nipype,glatard/nipype,carolFrohlich/nipype,sgiavasis/nipype,JohnGriffiths/nipype,wanderine/nipype,rameshvs/nipype,sgiavasis/nipype,gerddie/nipype,dgellis90/nipype,grlee77/nipype,FredLoney/nipype,FredLoney/nipype,Leoniela/nipype,mick-d/nipype_source,iglpdc/nipype,rameshvs/nipype,carolFrohlich/nipype,grlee77/nipype,wanderine/nipype,dgellis90/nipype,FredLoney/nipype,sgiavasis/nipype,grlee77/nipype,dmordom/nipype,arokem/nipype,gerddie/nipype,mick-d/nipype,glatard/nipype,JohnGriffiths/nipype,FCP-INDI/nipype,blakedewey/nipype,mick-d/nipype,pearsonlab/nipype,blakedewey/nipype,pearsonlab/nipype,fprados/nipype,carolFrohlich/nipype,mick-d/nipype_source,Leoniela/nipype,JohnGriffiths/nipype,sgiavasis/nipype,dgellis90/nipype,grlee77/nipype,gerddie/nipype,rameshvs/nipype,wanderine/nipype,rameshvs/nipype,dmordom/nipype,arokem/nipype,iglpdc/nipype,carlohamalainen/nipype,dmordom/nipype,mick-d/nipype,carlohamalainen/nipype,FCP-INDI/nipype,fprados/nipype,iglpdc/nipype,FCP-INDI/nipype,iglpdc/nipype,fprados/nipype,mick-d/nipype_source,glatard/nipype,pearsonlab/nipype,carolFrohlich/nipype,JohnGriffiths/nipype,glatard/nipype,arokem/nipype,FCP-INDI/nipype,arokem/nipype