MNT: Fixed tests based on update to gridder api
MNT: Fixed tests based on update to gridder api

yugangzhang/scikit-beam,ericdill/scikit-xray,celiafish/scikit-xray,danielballan/scikit-xray,yugangzhang/scikit-beam,CJ-Wright/scikit-beam,CJ-Wright/scikit-beam,celiafish/scikit-xray,danielballan/scikit-xray,licode/scikit-beam,CJ-Wright/scikit-beam,hainm/scikit-xray,licode/scikit-beam,licode/scikit-beam,licode/scikit-xray,hainm/scikit-xray,licode/scikit-xray,scikit-xray/scikit-xray,tacaswell/scikit-xray,giltis/scikit-xray,yugangzhang/scikit-beam,tacaswell/scikit-xray,tacaswell/scikit-beam,tacaswell/scikit-beam,tacaswell/scikit-xray,Nikea/scikit-xray,danielballan/scikit-xray,licode/scikit-xray,giltis/scikit-xray,tacaswell/scikit-beam,scikit-xray/scikit-xray,hainm/scikit-xray,ericdill/scikit-xray,Nikea/scikit-xray,giltis/scikit-xray,celiafish/scikit-xray,ericdill/scikit-xray,Nikea/scikit-xray,scikit-xray/scikit-xray