Patch to BootManager to implement the proposed run_level

	http://lists.planet-lab.org/pipermail/devel/2009-February/003283.html

basically:
	BM will safe it's session key to make it available to the RunlevelAgent.py
	exported by monitor-runlevelagent package.  This script is started and
	runs continuously or until the system enter production.

	build.sh copies the necessary files from the monitor-runlevelagent package