Add proxy capabilities to EBCDIC port: until now, each cached file

would be converted twice when not in the cache, and converted once
if in the cache (this would deliver incorrect contents). Now the
cache contains always the (unconverted) message body in ASCII format.
This seems reasonable because the cache has no "user interface".
(The header lines are still stored in EBCDIC in the cache because
they must be evaluated by the proxy module).


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@80634 13f79535-47bb-0310-9956-ffa450edef68