Repository initialization
Alpha release v0.1
Simplify help messages
Handle SIGINT to stop accessory
Change behavior in case of no_app.

Actually when starting the device in accessory mode with no application
required (AOA 2.0 and higher only), the android device is recognized
as an ALSA sound card. Therefore a "arecord -f cd | aplay -f cd"
allows users to listen to streamed music.