client - adding ability to include query string in request

[bajax]

It’s ugly, but not against the specification. In an indirect, kind of heavily interpreted way, it’s explicitly allowed, see: http://xmlrpc.scripting.com/spec.html

The format of the URI in the first line of the header is not specified.

This, as far as I can tell, indicates that it CAN include query strings.

Tests are included.

[bajax]

Let me know if there's anything else you need me to add. I'd like to get this into npm soon, I need it in production.

[bajax]

Any chance this will ever get merged?