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- Initial version pulled out of pytesmo
- added support for iterables like lists and numpy arrays to functions
like find\_nearest\_gpi. numpy arrays should work everywhere if you
want to get information from a grid. see issue 3 and 4
- fixed bugs occuring during storage as netCDF file see issue 8
- comparison of grids is no longer using exact float comparison, see
issue 9
- added documentation and examples for working with the grid objects,
see issue 1