Add plumb script for opening files

xdg-config-dir/herbstluftwm/autostart

@@ -29,7 +29,10 @@ hc keybind $Mod-Shift-r	reload
 hc keybind $Mod-Shift-c	close
 
 # programs
-hc keybind $Mod-g		spawn plumb
+hc keybind $Mod-g		spawn sh -c 'xclip -o | plumb'
+hc keybind $Mod-Control-g	spawn sh -c 'xclip -sel clip -o | plumb'
+hc keybind $Mod-Shift-g		spawn sh -c 'xclip -o | plumb -T'
+hc keybind $Mod-Control-Shift-g	spawn sh -c 'xclip -sel clip -o | plumb -T'
 hc keybind $Mod-p		spawn dmenu_run \
     -p run -fn "$hlwm_face" \
     -nb "$hlwm_background" -nf "$hlwm_foreground" \