busybox: update busybox-init.conf

enable FEATURE_SEAMLESS_*/FEATURE_TAR_AUTODETECT/EATURE_TAR_GNU_EXTENSIONS

without this tar autoupdate fails with some archives. thanks to newphreak
llvm: update to llvm-3.4-rc3

Signed-off-by: Stephan Raue <stephan@openelec.tv>
Merge branch 'master' of github.com:OpenELEC/OpenELEC.tv
open-vm-tools: partially revert https://github.com/OpenELEC/OpenELEC.tv/commit/e2299526defce66b3371dcc70051c1827fb2a677#commitcomment-4984170 for now

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