[e] (0) Clean up some vague parts of the spec relating to form controls' numeric values to use the right algorithms
Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=13154
Affected topics: HTML

git-svn-id: http://svn.whatwg.org/webapps@8439 340c8d12-0b0e-0410-8428-c7bf67bfef74