Change Admin components to return XML like the rest of the system

I need to expose the admin functionality to an external application. I think returning admin data as XML may be a good and simple first step towards that.

To do that I think I'll mostly need to modify JSPs (but I haven't had a good look at Admin GUI yet). From what I saw a few weeks ago when I briefly looked at this, no Java code will need to be modified. If you have concrete ideas about how this should be done, please comment before I start next week (week of October 23rd 2006).