Updated minimal version of geoarray.

requirements.txt

-geoarray>=0.6.15
+geoarray>=0.6.16
 py_tools_ds>=0.9.3
 cmocean
 numpy

setup.py

@@ -13,7 +13,7 @@ with open('README.rst') as readme_file:
 with open('HISTORY.rst') as history_file:
     history = history_file.read()
 
-requirements = ['numpy', 'gdal', 'shapely', 'scikit-image', 'matplotlib', 'geopandas', 'spectral', 'geoarray>=0.6.15',
+requirements = ['numpy', 'gdal', 'shapely', 'scikit-image', 'matplotlib', 'geopandas', 'spectral', 'geoarray>=0.6.16',
                 'py_tools_ds>=0.9.3', 'plotly', 'cmocean', 'six',
                 # 'pykrige'  # conda install --yes -c conda-forge pykrige
                 # 'pyfftw', # conda install --yes -c conda-forge pyfftw=0.10.4 ; \