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- Feautre: The ``updateWidgets`` method has received an argument
``prefix`` which allows setting the prefix of the field widgets
adapter.
This allows updating the common widgets prefix before the individual
widgets are updated, useful for situations where neither a form, nor
a widgets prefix is desired.
- Bug: Capitalize the messages 'no value' and 'select a value'. This change
has been applied also to the existing translations (where applicable).
- Bug: ``TextLinesConverter``: Do not ignore newlines at the end of the
inputted string, thus do not eat blank items
- Bug: ``TextLinesConverter``: ``toFieldValue()``, convert conversion
exceptions to ``FormatterValidationError``, for cases like got a string
instead of int.