Tests failing with pandas 0.25.0

[toddrjen]

I am getting the following test failures with pandas 0.25.0 that didn't occur with earlier versions of pandas:

=================================== FAILURES ===================================
____________________________ test_iris_column_names ____________________________

    def test_iris_column_names():
        iris = data.iris()
        assert type(iris) is pd.DataFrame
>       assert tuple(iris.columns) == ('petalLength', 'petalWidth', 'sepalLength',
                                       'sepalWidth', 'species')
E       AssertionError: assert ('sepalLength...h', 'species') == ('petalLength'...h', 'species')
E         At index 0 diff: 'sepalLength' != 'petalLength'
E         Use -v to get the full diff

vega_datasets/tests/test_local_datasets.py:32: AssertionError
____________________________ test_cars_column_names ____________________________

    def test_cars_column_names():
        cars = data.cars()
        assert type(cars) is pd.DataFrame
>       assert tuple(cars.columns) == ('Acceleration', 'Cylinders', 'Displacement',
                                       'Horsepower', 'Miles_per_Gallon', 'Name',
                                       'Origin', 'Weight_in_lbs', 'Year')
E       AssertionError: assert ('Name', 'Mil..._in_lbs', ...) == ('Acceleration..., 'Name', ...)
E         At index 0 diff: 'Name' != 'Acceleration'
E         Use -v to get the full diff

vega_datasets/tests/test_local_datasets.py:51: AssertionError

[jakevdp]

Thanks - #25 should fix it.