Add [-t timeout] option (defaulting to 2min) so that we don't get hundreds of lsdctl processes blocking on hung lsd processes (on PlanetLab). Switched to using timedcall and amain instead of scall because scall's timeout doesn't work.
Add [-t timeout] option (defaulting to 2min) so that we don't get hundreds
of lsdctl processes blocking on hung lsd processes (on PlanetLab).
Switched to using timedcall and amain instead of scall because
scall's timeout doesn't work.

weidezhang/dht,sit/dht,sit/dht,weidezhang/dht,weidezhang/dht,sit/dht,weidezhang/dht,weidezhang/dht,sit/dht,sit/dht