[e] (0) Reword the concept of closing a WebSocket with prejudice so that it's more obviously a flag
Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=23601
Affected topics: HTML

git-svn-id: http://svn.whatwg.org/webapps@8298 340c8d12-0b0e-0410-8428-c7bf67bfef74