Khan/khan-exercises — pull request #22528 by spicyj (2012-05-24 18:27:51+00:00)
Title: word-problems: shuffle the arrays incrementally

Before, it was impossible to add new word problem categories or even to add to lists within a particular category without wrecking all the seeds for every exercise that uses word-problems. This changeset will unfortunately break all the seeds once but should fix it for the eternal future thereafter.

@beneater