Merge r1610652 from trunk:

SECURITY (CVE-2014-3523): Fix a memory consumption denial of
service in the WinNT MPM used in all Windows installations.
Workaround: AcceptFilter <protocol> {none|connect}

Submitted by: trawick
Reviewed by: jorton, covener, jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1610653 13f79535-47bb-0310-9956-ffa450edef68