whereWithinMiles method
Add a proximity based constraint for finding objects with key point values near the point given and within the maximum distance given.
Radius of earth used is {@code 3958.8} miles.
Implementation
void whereWithinMiles(String key, ParseGeoPoint point, double maxDistance) {
whereWithinRadians(
key, point, maxDistance / ParseGeoPoint.EARTH_MEAN_RADIUS_MILE);
}