show connected devices or name of single device on Bluetooth Tile

Patchset 4: Add ACL listener to trace back connected/disconnected bt devices
            CleanUp
Patchset 5: Rebased
Patchset 6: Move ACL listener to BluetoothController

Change-Id: Ic9dda4f9123bc541753332df759cbd8534ab2e10
Merge branch 'cm-11.0' of git://github.com/CyanogenMod/android_frameworks_base into cd-4.4