PR: 1326, 1573, 1942

Submitted by: Rainer.Scherg@rexroth.de (Rainer Scherg RTC)
Reviewed by: karrerl@tis.mt.com (Lukas Karrer), Brian Behlendorf

Fix for CONNECT problems in proxy.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@80745 13f79535-47bb-0310-9956-ffa450edef68