Python xmlrpc madness

It seems like people are afraid of the Content-Length header item in a HTTP response. The crux of the matter is the fact that xmlrpclib.py still shares the love with the HTTP class instead of the newer HTTPConnection class fro httplib. That, and the fact that xmlrpc has seen its last update in "2004-08-20 mvl Bump minimum supported Python version to 2.1".

Done