factor

Author	SHA1	Message	Date
John Benediktsson	e7a42b1dc4	sets: rename unordered-set back to set.	2016-03-29 15:46:29 -07:00
John Benediktsson	f5ad868731	linked-sets: adding an ordered-set. (yes, it's an instance of unordered-set, patches to follow).	2016-03-29 14:55:07 -07:00