mediacenter: update pkg_site
service.openelec.settings: update to service.openelec.settings-0.4.5

Signed-off-by: Stephan Raue <stephan@openelec.tv>
add OPENELEC_ARCH= and OPENELEC_BUILD= to /etc/os-release
vdr-plugin-vnsiserver: update to vdr-plugin-vnsiserver-a7cb405

Signed-off-by: Stephan Raue <stephan@openelec.tv>
vdr-addon: update changelog

Signed-off-by: Stephan Raue <stephan@openelec.tv>
vdr-addon: bump addon version to 4.3.1

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