**This updates needs to be installed BOTH on the drones and PCs.**
The library now supports bluetooth PS4 controllers seamlessly along the python API. The main changes are:
- A WiFi connection is no longer required for the controller to run
- The drone simply connects to the WiFi when it becomes available (required for the python API but not for the bluetooth PS4 controller)
- A PS4 controller can be used to manually control the drone as long as it is paired with the Raspberry Pi
- The Battery is now displayed at all time in the GUI
- The GUI has an indicator for the PS4 controller: when it is solid, the API is overriden by the controller
**Backward incompatibilities**
- The get_telemetry() signature has changed.