A bunch of ElabInELab changes.
* snmpit: When ElabInELabis true, use the routines in the new snmpit_remote.pm library for setting up and tearing down vlans for an experiment. At present, only these two operations are proxied out to the outer emulab. * snmpit_remote.pm: A new little library that uses the XMLPRC server on the outer emulab to setup and destroy vlans for an inner experiment. This code is used from snmpit (see above). * snmpit_lib.pm: A couple of minor changes for the server side of the proxy operation. * snmpit.proxy.in: A new perl module that is invoked from the RPC server. This proxy sets up and tears down vlans for an inner elab. The basic model is that the container experiment will have lots of vlans for various individual experiments running on the inner emulab. * swapexp: A couple of minor elabinelab hacks. * tbswap: For elabinelab experiments, reconfig/restart dhcpd when tearing down the experiment, and call out to new elabinelab script when setting up an elabinelab experiment. There is no provision for swapmod at this time. * elabinelab: A new script to create the inner emulab. Does all kinds of gross DB stuff then more gross stuff on the inner ops and boss.