Shutdown / reboot button

[ibot]

Hello,

it would be great to have a shutdown (and reboot) button in subsonic.

I have prepared a raspberrypi with subsonic for non-techy friend of mine. He/She sometimes want to switch of subsonic (eg. over weekend) but does not know howto use a shell.
It would be great if there is a shutdown button in subsonic so he/she does not need to just drop power. This would prevent from a trouble with 503 errors and broken databases.