ver 3.11.3:
- Obsolete the separate wizard, instead a widget
  to create a Bluetooth Settings panel is provided
  and will be used by gnome-control-center
- Removed APIs:
  - settings/wizard plugins API
  - killswitch (now handled by gnome-settings-daemon's Rfkill plugin)
  - applet gir library
- Better icons for headphones, headsets, Apple, Google and Samsung phones