This function makes the drone stop all commands, hover, and make a soft landing where it is. The function will also reset the flight motion variables to 0. NOTE: If you want to take off and immediately land, it is recommended to run a hover() or time.sleep() in between the takeoff() and land(), because the CoDrone Mini will often miss the land command otherwise.
drone = CoDrone_mini.CoDrone()
drone.hover(3) # include a hover() or time.sleep() to prevent land() from skipping