* `DataFrame.print_missing_counts`: New method * `GeoJSON.read`: Handle properties differing between features * `ListOfDicts.print_missing_counts`: New method * `Vector.as_object`: New method
0.16.1
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* `GeoJSON.read`: Use warnings, not errors for ignored excess feature keys
0.16
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* `GeoJSON`: New class
0.15
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* `ListOfDicts.sort`: Handle descending sort for all types
0.14
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* `ListOfDicts`: Make obsoletion a warning instead of an error