Keyword multiple select enhancement test - refs PLIP ticket #11017.

The PLIP adds an accessible, jQuery-based widget, which includes both a scrollbar and checkboxes.

This file is basically a copy of ../keyword.pt, with QUnit added, and slight modifications to make it run in a static, standalone way, looking somewhat realistic, although Plone's css messes up QUnit's a little.

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QUnit Test Suite

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    Manual Test

    dl semantically associates selector name with values
    These spans are hidden by css, and used by the JavaScript called below. No tags currently selected. % tags currently selected. Call js to modify this widget with both a scrollbar and checkboxes. There may be a better place to put this js call; examples exist in others' widget.py and js files, but having it here covers cases where some but not all select elements call js to be modified. Todo: The #subject should eventually refer to the template variable.