Koha integrated with Kea

I did some work a while back to integrate Kea and Koha for the LGNZ site. This allows them to use the Kea
Content Management system to add documents (be they html, pdf whatever) to
their website and Koha to catalogue them.
Ive since got this working for the Katipo Koha now as well. It seems to
work pretty well, so my plan now is to document what I did so that it can be
done with other CMS systems as well if people want.