Story 1589: Use the same chrome on special pages as article pages

This kicks off simplifying our skin code by making the HTML for
special pages more in line with normal article pages

Applies to all beta special pages

Checked and tweaked font sizes with Kaity
Cleanup qunit test to not use IDs (the tests run in alpha
so the existence of a #section_0 element in special pages
causes them to break)

Change-Id: I340e538d3d59472c477662a1530edf4801ab67da
Merge "Story 1589: Use the same chrome on special pages as article pages"