This is a user mode test harness that can be used to do
moderate testing of the bandwidth limiting module.  It
uses an interactive prompt model, with very limited help
facilities.

'help' returns a list of commands.

'command -h' returns help for that command.

In order to test all facets, the clock does not run freely.
Instead, you need to start each command, then advance the
time as you want.

Eg:

    timer
    run
    create
    run
    sendmsg -f 0 -s 2000
    run
    setbw -i localhost -p test -t rw -b 3000
    bind -f 0 -a localhost
    sendmsg -f 0 -s 2000
    run
    tick -r -c 500

Oh, and it seems the harness is somewhat broken right now.
The linux kernel/glibc include file interaction seems to
have broken the pthreads when netdb facilities were added.

Bletch.
