[cgiow] (0) Add navigator.getLanguages() and <body onlanguagechange=''>
Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=23517
Affected topics: DOM APIs, HTML, Workers

git-svn-id: http://svn.whatwg.org/webapps@8458 340c8d12-0b0e-0410-8428-c7bf67bfef74