Merge appliance with multiappliances, unifrom format for appliances

Log from IRC:

19:15 < mgoldmann> bobmcw: hmm, another idea: multi appliances diffiers from single in only one point: in .appl file there is an appliances array, in single there wouldn't be that, so I think we could simply merge it, what do you think? Am I missing something?
19:16 < mgoldmann> we could generalize it if array is not empty then do something with kickstart or whatnot
19:17 < mgoldmann> what we get? a format that is exactly the same for all appliances
19:18 <@bobmcw> there's more stuff installed under /usr/share/ace/appliances/** also
19:19 <@bobmcw> but yah, it's just a concatenation of multiple base appliance installs, really
19:19 < mgoldmann> yes, but that's not problem
19:19 <@bobmcw> if you want to approach a "base appliance" as a multi appliance with children.size=1, that's cool
19:20 <@bobmcw> the APPLIANCE_NAME needs multiple lines, still, in sysconfig
19:20 < mgoldmann> dunno, just a idea, but I think it would be ok
19:20 <@bobmcw> unless you can safely merge it into a single sythentic sumo appliance
19:20 <@bobmcw> but there's a bunch of appliance.pp files named similarly
19:20 <@bobmcw> I trust ya to figure it out :)