[giow] (3) Fix document.all since DOM changed out from under us... also, ack for previous checkin
Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=20396
Affected topics: DOM APIs, HTML

git-svn-id: http://svn.whatwg.org/webapps@7798 340c8d12-0b0e-0410-8428-c7bf67bfef74