one booting device at a time
return idle device when handling requestboot a backup one later
add nat operation
add nat operation
use eth0 as default public outgress port
Merge branch 'master' of http://git.research.intra.nsfocus.com/repos/bootagent

Conflicts:
	server.py
add mechanism to detect running device
Merge branch 'master' of github.com:AzYet/bootagent

Conflicts:
	server.py