User:DarthKitty/testharness report redesign

Experimental redesign of Module:Testharness's unit test report UI, using a Portable Infobox instead of a table.

No failing or missing tests
Unit test report for Sandbox  Overview [ [Purge] ]

Just failing tests
Unit test report for Sandbox  Overview Test cases failing [ [Purge] ]

Just missing tests
Unit test report for Sandbox  Overview Test members missing [ [Purge] ]

Both failing and missing tests
Unit test report for Sandbox  Overview Test members missing Test cases failing [ [Purge] ]

Open questions

 * This redesign takes information from the lead section and moves it to the infobox, leaving the former blank. What should take its place?
 * The "purge" link looks strange when there are failing or missing tests. Is there a better place to put it? (We currently include a link in MediaWiki:Talkpageheader, but that doesn't benefit other wikis with unit tests, e.g. VSTF.)