TEST: added test for imwarp.get_direction_and_spacings
TEST: added test for imwarp.get_direction_and_spacings

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