alternative solution for CVE-2011-4317

           should be much faster than a callout to strcmp.

    wrowe: Shouldn't this all simply be handled with an error result from

           apr_uri_parse?

    trawick: leaning towards (b) with wrowe's tweak above, to let other mods

           decide whether to handle odd URIs with core hook failing it if it got

           that far

    trawick: valid URIs can be used to exploit this, so apr_uri_parse() won't help

    Plan (b) from mail discussion above

      Adds trunk revision 1233604

      2.2.x patch: http://people.apache.org/~trawick/CVE-2011-4317-2.2.x.txt

    +1: trawick

  * mod_proxy: cure size_t abuse part 1, backport relevant bits of r1227856,

    Specifically normalizes ap_proxy_string_read so that the prototype