Version 0.4
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* Dump video to file
    * If using mplayer to show the file, set the FPS manually with 
      "mplayer -fps 30 /path/to/file.h264"
* Rename anything that starts an event loop to init_event_loop()
* Joystick to UAV control number conversion decoupled from ARDrone specifics
* Add methods to UAV::Pilot::Control::ARDrone for userbox nav data and picture taking

Version 0.3
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* Event-based interface
* Joystick control

Version 0.2
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* Device renamed to Control
* Sender renamed to Driver
* Fetch demo navigation data

Version 0.1
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* Piloting commands work
