bunch of relocations of things from /etc/testbed in the old world, to
/usr/local/etc/emulab in the new world. Basically, /etc/emulab has
just a few config files that do not change. All of the binaries and
scripts are now placed in /usr/local/etc/emulab, and *all* of the
variable stuff that was written into /etc/testbed is now written into
/var/emulab/{boot,logs,jails,lock,db}.

IPoD changes for linux

than having node types in interface-specific configuration scripts, they
use control_interface so that this information is only stored in one
place.

Also added ifcfg-eth{1,3} scripts which are not used now, but make it easier
to handle differing control interfaces in the future.

of the world!