[acgiow] (3) Allow type=time to have min>max, so that times can span midnight.
Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=7688
Affected topics: HTML

git-svn-id: http://svn.whatwg.org/webapps@8203 340c8d12-0b0e-0410-8428-c7bf67bfef74