virtualbox: update to 4.3.6

ref #2925
vdr-control: strip
vdr-plugin-xmltv2vdr: strip
gettext:host: build static

closes #2926
new package: add package 'libxshmfence'

Signed-off-by: Stephan Raue <stephan@openelec.tv>
new package: add package 'dri3proto'

Signed-off-by: Stephan Raue <stephan@openelec.tv>
Virtual: meh. this is unsupported
projects/RPi/patches: update RPi patches

Signed-off-by: Stephan Raue <stephan@openelec.tv>
projects/RPi/linux: add some more ALSA drivers

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xf86-video-intel: update to xf86-video-intel-2.99.910

Signed-off-by: Stephan Raue <stephan@openelec.tv>
libzip: update to libzip-0.11.2

Signed-off-by: Stephan Raue <stephan@openelec.tv>
new package: repository.unofficial.addon.pro
sync unofficial
argh: we have addon.xml here so also bump PKG_VERSION
xbmc: update to xbmc-73371a9
tbs-linux-drivers: meh. this is unsupported
busybox: add 'sudo'
dvb-firmware: update to dvb-firmware-0.0.37
new package: readd package 'ffmpeg', revert if switching to XBMC vanilla

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xbmc: update FM patches, revert if switching to XBMC vanilla

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