Consolekit: sync & unmountall before reboot / shutdown
xbmc: update to xbmc-648b6fc

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xbmc: remove not working patch

Signed-off-by: Stephan Raue <stephan@openelec.tv>
Merge pull request #11 from OpenELEC/master

sync