BF: Wrap imports of optional deps in try-except block
BF: Wrap imports of optional deps in try-except block

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