[mythtv] Export wsdl for Services API

[Joel Means]

I have had a request from someone who isn't ready to upgrade to 0.25
to provide the wsdl for the Service API.  I don't want to open up port
6544 on my backend to the world, for obvious reasons.  I tried setting
up a reverse proxy, but that doesn't work due to hardcoded imports in
the wsdl.  Is there a way to generate the wsdl from the source
offline?

Thanks,
Joel