compton: kill compton before restarting awesome
compton: kill compton before calling xrandr
Revert "compton: switch back to GLX backend"

This reverts commit ec4236f34729ae76a8c5bc9f176576cff07f52e0. The
problem is still here.
Revert "Revert "compton: switch back to GLX backend""

This reverts commit ff9ce9621d6537440073cc1c56c20429a98f08d7. Well,
using a stable Intel driver seems to do the trick.
input: don't put docking logic inside input handling

We use an external binary (in `~/bin`).