giving write operations a chance after a max of 64k has been read, not...

giving write operations a chance after a max of 64k has been read, not entering async keepalive before first request is seen

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1729624 13f79535-47bb-0310-9956-ffa450edef68