detect headset plug in

```
this app would be great to have an option that the application will turn on 
when an headset is plug in !  :)

thanx for your work and i really hope to see this feature in a next update (not 
everybody have BT in their car)

Gaëtan (galaxy s 2)

```

Original issue reported on code.google.com by `tangs...@gmail.com` on 29 Oct 2011 at 1:19
