Option to turn on minor ticks in matplotlibrc

[oschoudhury]

There does not seem to be an rc parameter which enables minor tick parameters by default. One can use plt.minorticks_on() for each axes but that feels cumbersome.

I would therefore request xtick.minor.visible and ytick.minor.visible that works like plt.minorticks_on(). Maybe also something for the major ticks, I can imagine someone wanting to disable major ticks for imshow.

[tacaswell]

I am inclined to hold off on adding new rcparams until we sort out how/if we are going to re-do how they are handled. However if you put together a PR to implement this it will probably get merged.

[andycasey]

👍 for this

/$0.02