old SimpleXMLRPCLib classes

[Brian Quinlan]

> This is the xmlrpc server support module I use; it is based on code
> from SimpleXMLRPCServer and scripts by F. Lundh and E. Kidd.  It
> supports the standard system methods, and works with CGI and SkunkWeb:

...

That's cool code. I wonder why system.listMethods is missing.

I'm also not sure what system.methodSignature is doing since it seems
unimplementable in Python due to the lack of type information.
Bookmarking it for later investigation.

Cheers,
Brian