xbmc: add PR4491

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xbmc: add PR4518

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xbmc: add PR4519

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xbmc: add PR4489

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xbmc: update to xbmc-13-ca6c289

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