#8 move PPMs into XML description

[Raffi Krikorian]

in order to minimize the amount of files needed for an agent, move the PPM into the XML document. just write some script that takes the PPM and appends it to the XML in some XML type format...

of course, we have to tackle the problem of what happens when the agent doesn't have an XML description. i don't want this to mean that we require each agent to have an XML description -- but i'm not sure what the right answer is.