Metabug for enabling automatic power management by default

[cjb]

This bug tracks the bugs we should have solutions for before turning on automatic power management by default:

Activities:

#7913 -- Record should inhibit suspend

#7914 -- Distance should inhibit suspend

School server:

#8177 -- ds-backup should set wakeup alarms

Base:

#7943 -- totem should inhibit suspend

#7910 -- olpc-update should inhibit suspend

#7958 -- DCON flicker and DCONLOAD failures

#2765 -- Need to turn off DCON after some time in idle suspend

Networking:

#6528 -- Packets that wake the laptop from suspend are often lost

#6818 -- Driver does not set link level multicast addresses into firmware

#7922 -- Ethernet adapter crash

#3732 -- arp broadcasts don't wake up autosuspended laptop