kamens/khan-exercises — comment on commit 1290c8fa461b2ba3281d33f633e231be70a2ab8e
File:  line 0
By benkomalo:

hrm. this change looks like it's touching some pretty crucial stuff and I don't think I know khan-exercises well enough to be able to comment.
It LGTM, but maybe @nsfmc or someone should look too?