BF: Changed the kwarg to the full 'signal'.
BF: Changed the kwarg to the full 'signal'.

This will cause hella intermittent bugs on your Travis!

Messaoud-Boudjada/dipy,FrancoisRheaultUS/dipy,mdesco/dipy,villalonreina/dipy,rfdougherty/dipy,matthieudumont/dipy,StongeEtienne/dipy,matthieudumont/dipy,nilgoyyou/dipy,sinkpoint/dipy,jyeatman/dipy,FrancoisRheaultUS/dipy,JohnGriffiths/dipy,villalonreina/dipy,demianw/dipy,StongeEtienne/dipy,demianw/dipy,Messaoud-Boudjada/dipy,nilgoyyou/dipy,jyeatman/dipy,beni55/dipy,oesteban/dipy,sinkpoint/dipy,oesteban/dipy,beni55/dipy,JohnGriffiths/dipy,mdesco/dipy,rfdougherty/dipy