scripts/image: simplyfing detection of devel version, thanks to '_gio'

Signed-off-by: Stephan Raue <stephan@openelec.tv>
Merge branch 'master' of github.com:OpenELEC/OpenELEC.tv
xf86-video-fglrx-legacy: add patch to remove overlapping device id's

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