[e] (0) Checkpoint recent updates relating to changing the pipeline. …

…This fixes a bunch of editorial mistakes I uncovered with the new scripts. Shouldn't have any normative changes.

Affected topics: CSS, Canvas, DOM APIs, HTML, HTML Syntax and Parsing, Microdata, Offline Web Applications, Rendering, Security, Video Text Tracks, Video and Audio, WebSocket API, Workers

git-svn-id: http://svn.whatwg.org/webapps@8690 340c8d12-0b0e-0410-8428-c7bf67bfef74