[PATCH 6/7] wsdapi: Implement generation of SOAP XML message

[Owen Rudge]

 > There's a lot going on in the patch, can you split it?

If I reorder the patch set as mentioned in my previous message, it 
should be easier to split this up in a meaningful way. Many of the 
helper functions would not be required until certain types of data are 
added to the XML (e.g., attributes).

 > If the above condition succeeds, then it'll jump to cleanup with 
headerElement uninitialized.

Thanks, I'll fix that and will check for any similar instances.

Cheers,

Owen