AFNetworking/AFNetworking — pull request #2007 by jilouc (2014-04-17 15:09:35+00:00)
Title: JSON response serializer: removesKeysWithNullValues of objects in nested arrays

`removesKeysWithNullValues` is a great addition, but its implementation is currently incomplete.
It doesn't remove keys for `null` values in objects contained in arrays, for instance :

````
{
"foo": "foo_value",
"bar": [{
"key_1": "key_1_value",
"key_2": null
},
...
]
}
````

`key_2` is not removed by `AFDictionaryByRemovingKeysWithNullValues`.
I've replaced it with `AFJSONObjectByRemovingKeysWithNullValues` which performs the full removal of keys with null values.