provide a /etc/os-release file (see http://0pointer.de/blog/projects/os-release)
service.openelec.settings: update to service.openelec.settings-0.3.15

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xbmc: update to xbmc-13-482ccd3

Signed-off-by: Stephan Raue <stephan@openelec.tv>