* Create unwrap_pano module
Create basic settings structure.
* Get basic image unwrapping working
* Add module settings
* Fix incorrect declaration of pano_unwrap_init()
* Add video_thread dependency
* Fix incorrect minus sign on real drone
* Set default forward direction for ARDrone2
* Set default vertical resolution to 0.18
Seems to be a better match with the gazebo model.
* Use LUT for unwrapping
LUT seems to work fine in simulation, except it crashes when
overwrite_video_thread is set to false...?
* FIX Add workaround for overwrite disable crash
* Add calibration pattern
* Expand module documentation
BUG: Segfault on startup on real drone, outside of camera_cb.
* Add example images to documentation
* Remove unused code and printf's
* Add max FPS define
* WIP add to ardrone2 example
* Fix#2187
* Clean up merge and temporary changes