BF: osx fixes for realpath
BF: osx fixes for realpath

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