Coordinate pair validation error

[schaunwheeler]

Starting in line 256 of coordinate_utils.py:

if not (-90.0 <= value[0] <= 90.0):
        raise ValueError(
            ' '.join([
                'The second element of the list is assumed to be latitude (y-coordinates),',
                'but this element is outside acceptable bounds (-90.0, 90.0)'
            ])
        )

That should actually read value[1], since latitude is supposed to be the second value of the tuple.