* implemented PLC slice renewal
* restructured daemon code/startup
- removed getfree daemon (replaced by plabdiscover; run from cron)
- moved generic daemonizing code into libtestbed (class)
- created plabrenewd - small script that utilizes daemonizing class
- removed plabdaemon file.
- updated bossnode startup scripts
* changed slice prefix - PLC denies permission w/ anything other than "utah"
* Minor semantic changes to module API to be more consistent with other parts.
* Some bug fixes.