mce = Mode Control Entity

MCE_BOOTUP_SUBMODE is used to keep track of MCE's first start when booting
up the system; needs to be fixed

The flight-mode by home needs improvement;
should ONLY make the change if bootup is taking place...

On first run after mce has been restarted,
mcetorture may incorrectly report leaks; the best solution is to run:

mcetorture --one-shot --no-abort

and then do the intended mcetorture run as normal.
