Sean Gillies 4e53e3ca2d Refactor to avoid unneeded numpy imports.
Closes #140.

Fairly easy because Numpy methods accept either strings like
`'uint8'` or types like `np.uint8` as dtypes. So do Rasterio
methods now.
2014-09-05 14:11:36 -06:00
..
rio
2014-09-05 14:11:36 -06:00
2014-05-02 15:38:09 -06:00