If unpaired while undocked, device will be removed from the BT device list.
If unpaired while docked, the user can do pair and connect. No PIN dialog will pop up.
If undocked after unpaired, device will be removed from the BT device list.
Change-Id: Id587a517999e08641451f78dec8696a06028cf16
Reimplemented as a Foreground Service just so it can get on top of the Car Dock App.
Added debounce mechanism to not disconnect immediately after getting a undock event.
Each dock now has its own "Remember setting".
Remember Settings is on by default
Change-Id: I80790bdb7c831e2a642365b92433012191aa70c1
