Make Pike compatible with chunked transfer encoding
Imported from https://youtrack.roxen.com/issue/PIKE-234
Reported by Eduardo Rodes Pastor firstname.lastname@example.org
At the moment, Pike does not allow chunked encoding. The current workaround is adding this line to
radd("Transfer-Encoding: ", m->transfer_encoding);
This must be approved (or changed) and pushed to the Pike source code, since the new IDS proxy version does not work without it.