This service is different from the rest because it
doesn't run encrypted, but plain xmlrpc. Hence, we
cannot use the normal mnet_xmlrpc_client (that provides
on-the-fly encryption and signing).
So, instead, let's instantiate a custom client here
and use it for this pure xmlrpc request and response.
PS: It's curious that this exact sevice has support
for proxies but the mnet_xmlrpc_client one has not. I'm not
going to modify that here, but have left a comment
in the code about that.
PS: Some small style changes have been applied around
the modified code (spacing, &&, comments...)
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