jakevdp/mpld3 — pull request #29 by danielballan (2014-01-04 03:18:57+00:00)
Title: BUG: Until ordering is handled properly, put images in back.

Lines should display in front of images. This was broken amidst refactoring (not sure exactly when).

As a code comment says, ultimately, placement should respect z order. But in the mean time, this fix makes it possible to plot points/lines/whatever over images, the normal usage.