Add another new elist; emulab-recently-active-projects, as per Jay's request. Uses the same sitevar as emulab-recently-active-users.
Add another new elist; emulab-recently-active-projects, as per Jay's
request. Uses the same sitevar as emulab-recently-active-users.

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