0.2.3

Fix nested dictionaries in autoformat in xml return

When the return of the function is e.g. {"a": "a1", "x": {"b": "b1", "c": "c1"}}, the xml message was wrong

[...]
<a>a1</a>
<x>{'b': 'b1', 'c': 'c1'}</x>
[...]

Corrected to

[...]
<a>a1</a>
<x>
<b>b1</b>
<c>c1</c>
</x>
[...]