* Remove f-formatting strings for python 3.5 support.
0.1.1
* Swap axis labels in `plot_confusion_matrix`, the y-axis shows the true class, not the predicted class. * Add `colorbar_aspect_ratio` to `plot_confusion_matrix` to allow control of colobar width
0.1.0
* Support `kwargs` being passed to `plt.imshow` in `plot_confusion_matrix`