bugzilla: stop XMLRPC requests from requesting gzipped responses

Python 2.7 introduced support for gzip encoding in xmlrpclib.Transport.
We do our own handling of responses, and don't currently support gzip encoding.
So to run successfully under Python 2.7 with a web server configured
to gzip encode, stop XMLRPC requests from announcing gzip encoding support.

hgext/bugzilla.py

@@ -497,6 +497,7 class cookietransportrequest(object):
 
     def request(self, host, handler, request_body, verbose=0):
         self.verbose = verbose
+        self.accept_gzip_encoding = False
 
         # issue XML-RPC request
         h = self.make_connection(host)