tuna: Correct bluetooth device name

This commit changes the device name from what is reflected
in AOSP (Galaxy Nexus 2) to a more appropriate name (Galaxy Nexus).
This will correct the name in the Bluetooth pane in Settings.

Change-Id: Ia13ebb30b3ae242667e8dbd59a314a3418b3cec8
Tuna: overwork liblights

This commit does several things:

- fix sometimes wonky notification LED
- enable battery LED
- battery LED can be turned off and on, as well color change
  for low, normal, full loaded state
- abillity to enable blink on low battery

cheers

Change-Id: I3e9ea25aef48bba80a57517630db09679371b460

Conflicts:
	device.mk