Basic structure for the mainloop with PID control
Speed delta must be a signed int
Mark last run time on PIDControl code
Define GAIN constants
Simple loop to check gyro vibrations
Increase throttle every 5 sec
Changing some types to float
Set motors to min throttle at the init() method
Remove GAIN #defines
Remove useless Serial.print*
Temporary motor throttle limitting
quad.fly() again as a infinite loop
Merge branch 'feature/pid-control' into develop