lopqr/bumblebee: auto-detect nvidia paths in initscript
lopqr/bumblebee: remove superfluous patches

- 006-set-vgl-readback-pbo: merged with 3.1
- 007-nvidia-fallback-probe: using initscript. Consequence: manually starting
  with bumblebeed may fail to detect the correct nvidia driver. Anyway, the
  ModulePath was not set so this patch was broken already.
lopqr/bumblebee: blacklist more nvidia drivers
lopqr/bumblebee: set --driver-module, allow /usr/lib/nvidia/
lopqr/bumblebee: test nvidia kernel module, set driver to nvidia
lopqr/bumblebee: Added nvidia-313 blacklist
lopqr/bumblebee: fix startup error in init script
lopqr/bumblebee: upstart fix
Merge branch 'bumblebee-3.1-proposed'