xbmc: update to xbmc-13-a1cab7a

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xbmc-theme-Confluence: update to xbmc-theme-Confluence-13-a1cab7a

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xbmc: add PR4414

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