Added the widearea_recent table, which will contain a more recent version of the data in widearea_delays . Schema for the two are identical.
Added the widearea_recent table, which will contain a more recent
version of the data in widearea_delays . Schema for the two are
identical.

Also cleaned up the schema for both tables, so that they have proper
primary keys, etc.

nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome