Parent test class no longer provide this helper

  - Not to mention this helper is quite a hammer.
Clear up some comments.

  - Especially the part about missing view entries.
  - Also the code involved looks clunky.
  - Also the location for testing this is also at the wrong place.  At
    least if someone were to check the blame list this might show up.
Fail predictably.
Make prettier

  - Also enable client-side sorting magic, curtesy of jQuery integration
    in Plone.