Make active client count a little more accurate: detect clients that hang and get restarted (i.e., join again with a different ID). Note that this count is only used for stats reporting so it isn't vital that its value be correct.
Make active client count a little more accurate: detect clients that
hang and get restarted (i.e., join again with a different ID).
Note that this count is only used for stats reporting so it isn't vital
that its value be correct.

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