* iiblnd: drain disconnecting sockets

*   iiblnd: drain disconnecting sockets

*   lnet: explicit configure/teardown for routers ("lctl network up" as well as
    "lctl network down").  config_on_load=0 is the new default (setting it
    effectively does "lctl network up" at module load time).

    Added "net" as an alias for "network" to lctl so you don't have to type
    "work" when you run "lctl net up" from the shell.

    Also fixed a couple of bugs which required lnet to be unloaded before it
    could be brought up again.

*   lnet routing: restored automatic route disabling when comms to a router
    fails (currently kernel elan and tcp only).