The beginnings of mote support.
Add tbuisp, a frontend to uisp, the program used to upload code to motes. Takes care of testbed permissions checking, and figuring out most of the command-line arguments to uisp (like the programming board chipset and microcontroller part number). For now, only supports uploading code to a mote, and has debugging output turned on. Depends on 'uisp' being installed - right now, that doesn't happen automatically. Probably what I should do is import the uisp code into our CVS tree, since it's GPLed, and not _too_ huge ( O(dozen) files. )