olpc-powerd on soas devxo-1

[Mikus Grinbergs]

This is the first F11-based build to come with this module included. 
  I'm going to have to play with the thresholds -- it acts too soon 
for my liking.

Was doing a 100MB+ rsync to my XO-1.  The screen dimmed, but the 
data transfer continued;  then the 'power' light started blinking, 
but the data transfer stopped (though unlike how 'suspend' worked in 
Joyride, here the external ethernet adapter did not get powered 
off).  When I awakened the XO (by pressing the <shift> key), it took 
quite a bit of cogitation by the XO before the data transfer resumed 
-- but resume it did.  Still, would be nice to inhibit (even if 
manually) 'suspending' while lengthy data transfers take place.

mikus