setuptools: update to setuptools-2.0.2

Signed-off-by: Stephan Raue <stephan@openelec.tv>
Merge branch 'master' of github.com:OpenELEC/OpenELEC.tv
scripts/unpack: add support for pre_unpack(), unpack() and post_unpack() in package.mk

Signed-off-by: Stephan Raue <stephan@openelec.tv>
libva-driver-intel: rework own package patching, now supported by scripts/unpack

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xf86-video-nvidia: rework own package patching, now supported by scripts/unpack

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xf86-video-nvidia-legacy: rework own package patching, now supported by scripts/unpack

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