Always unload LAN if previously set.  Otherwise no code changes.

Boy, this is a fun one!  :) Still some work to do, but seems really
good for headless installation or just being plain sloppy.  Needed
do adapt timeout() to return the actual input char, so that we can
do the `any key' prompt.

(configd) configd actions missed second level actions, output is fine now but nesting actions may need some more thinking

o Retain the timeout priorities while cutting the timeouts to
  10% of what they were before (30s).
o Metadata is always flused by default, but change timeout to
  match the others anyway.
o Reorder the sysctl list for convenience white at it.