Bug report

Bug summary

Currently, boxplot(), bxp(), violin(), and violinplot() take a vert: bool argument to switch between vertical and horizontal; this is inconsistent with colorbar(), hist(), eventplot(), and Slider(), which take an orientation: {"vertical", "horizontal"} argument.

For consistency, I'd suggest adding support for orientation (both because I think colorbar() and hist(), in particular, are probably the most used among all these, and because I like the API better :-)), and later deprecate vert. Thoughts?

attn @phobson who has been involved in boxplots, IIRC.