Heads up: bluetoothd on-demand startup

[Bastien Nocera]

Heya,

I've added a patch to bluetoothd in F-12 to support being started via
udev, on-demand. bluetoothd will now only start up when you have a
Bluetooth adapter plugged, and will exit 30 seconds after the last one
went away.

The only purpose of the bluetooth initscript is now to switch HID proxy
adapters into Bluetooth mode (on Macs, and some Logitech and Dell
keyboard/mouse combos). That'll probably go away as well, and into udev.

File bugs against bluez if you encounter any problems with bluetoothd
being in the wrong state (ie. started with no Bluetooth hardware, and
not running when you have Bluetooth hardware).

Cheers