measure PSF demo mode deprecated

[sumiya-kuroda]

It seems like measurePSF("demo") is deprecated. I get this error message:

Error using matlab.graphics.axis.Axes/set
Error setting property 'CLim' of class 'Axes':
Value must be a 1x2 vector of numeric type in which the second element is greater than the first element or is Inf.
Error in caxis (line 106)
            set(ax,'CLim',arg);
Error in measurePSF/updateUserSelected (line 505)
            caxis([min(obj.PSFstack(:)), max(obj.PSFstack(:))])
Error in measurePSF/addNewStack (line 301)
            obj.updateUserSelected; %Ensure the white lines showing the current user z-plane are correct
Error in measurePSF (line 289)
                obj.addNewStack(inputPSFstack);