Writing the doc got scary, and I remembered that anyway I want to lean towards literate programming for doc, so I added more to the comments in integrity.lisp and created a test suit entry that shows a whole lot going on, including an ephemeral initialized to non-nil, and a client sort to get observer actions to come out in the right order.

If anyone has questions, just ask. If it seems best, I'll respond by extending the code comments and pointing you to that.

kt