* Add a uuid to the profile itself. So now we have a uuid for each specific
  version, and a uuid that points to the profile as a whole.

* On the manage page, move the URL to the left hand panel, and add a second
  URL. One is the URL of the specific version, and the other is a URL to
  the entire profile. Add popovers to explain the difference between.

* On the instantiate page, when you use this URL, we instantiate the most
  recently published version of the profile.

* Add a bit of verbiage to the publish modal.