[Petal] Petal to depend on MKDoc::XML at some point

[Jean-Michel Hiver]

> I look forward to seeing how MKDoc::XML will be made to parse XML and
> HTML template files. I know you've been wanting to move from XML::Parser
> to a another method for reading input files. Are you using an existing
> library or rolling your own?

MKDoc::XML requires no dependencies. If you wish to discuss this module
further I invite you to read the CPAN docs, there is an address pointing
to the mkdoc-modules mailing list :)

Cheers,
Jean-Michel.