A bunch of changes for a "standalone" clearinghouse. Presently this
its really a hugely stripped down Emulab boss install, using a very short version of install/boss-install to get a few things into place. I refactored a few things in both the protogeni code and the Emulab code, and whacked a bunch of makefiles and configure stuff. The result is that we only need to install about 10-12 files from the Emulab code, plus the protogeni code. Quite manageable, if you don't mind that it requires FreeBSD 6.X ... Still, I think it satisfies the requirement that we have a packaged clearinghouse that can be run standalone from a running Emulab site.