repository.unofficial.addon.pro: sync with upstream
gdb: update to gdb-7.8.1
libressl: update to libressl-2.1.1

Signed-off-by: Stephan Raue <stephan@openelec.tv>
vdr: remove eitscan disable patch

this re-enables eitscan in vdr-iptv
note: correct channel nid/tid/sid values must be set
vdr-addon: bump