scalebar, used in plot_glm_test_data doesn't exist

[jaymtee]

There is an error in the glmtools example notebook named "plot_glm_test_data". It looks for 'scalebar' in glmtools.plot.mapscale...

code: from glmtools.plot.mapscale import scale_bar

but!

No module named 'glmtools.plot.mapscale'

looking at the code confirms this and I don't see a scalebar anywhere either.