we can get at it from users of CallMethod. Then in create_instance,
put that into the APT_Instance record so that we can easily see the
log file if there is a failure. That is displayed in the status page
when in red-dot mode.

Checkpoint, still needs some work.

of concurrent mappers that can run at once. Currently used only
on the Geni path.

A per-domain capture process is now started up in vnodeCreate and
shutdown in vnodeDestroy. It should remain running for the entire time
in between (across reboots, etc.)

This should help ensure that you don't ever miss your favorite console
output, even the thrilling early-stage boot messages!

With "-X <domname>" capture will track what pty is being exposed by
xenconsoled for a domU console. Capture will doggedly reconnect whenever
it gets disconnected from the pty (which happens during reboots, etc.)

Capture can even be started before the domain exists and it will keep
trying til it does. So betware of typo-ing the domain name, capture won't
care!

Also added "-R <retry-interval-in-ms>" option to determine capture's
"doggedness"--how often it will retry to establish a connection in the
remote/program/xen modes.

 - Do not report interface addresses unless we have a valid dotted decimal
   IPv4 address
 - Always give interface roles as either "control" or "experimental"