Add two backport proposals.

wrowe's +1 for C-L filter rewrite per msgid <CACsi252gUT1n_mzgwUVathOwYbidDzET7bTXR_KycobyLBWKAQ@mail.gmail.com>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1811539 13f79535-47bb-0310-9956-ffa450edef68