TravelTimePredictionExample wrong GeoUtils usage for direction

[rucub100]

Hi,

i think i have found a small problem in the example.
This commit in my fork contains the fix.
The line

int direction = GeoUtils.getDirectionAngle(ride.endLon, ride.endLat, ride.startLon, ride.startLat);

should be

int direction = GeoUtils.getDirectionAngle(ride.startLon, ride.startLat, ride.endLon, ride.endLat);

because the GeoUtils API says

/**
	 * Returns the angle in degrees between the vector from the start to the destination
	 * and the x-axis on which the start is located.
	 *
	 * The angle describes in which direction the destination is located from the start, i.e.,
	 * 0° -> East, 90° -> South, 180° -> West, 270° -> North
	 *
	 * @param startLon longitude of start location
	 * @param startLat latitude of start location
	 * @param destLon longitude of destination
	 * @param destLat latitude of destination
	 * @return The direction from start to destination location
	 */
	public static int getDirectionAngle(
			float startLon, float startLat, float destLon, float destLat)

Or maybe I am wrong? Looking forward for feedback, thanks in advance.