AbstractPropertyOutput should use Translator to render values

The AbstractPropertyOutput uses the simple *.toString() representation for object rendering:

String text = value == null ? "" : value.toString(); // line 134 in AbstractPropertyOutput.java

This can be a good solution if there is no translator necessary. But in case you'd like to render dates, formatted numbers or other custom output it would be nice, if the configured translators have an effect at this point.

Of course the representation can be adjusted using a single block, but using the translator for property output would be fitting really nice within the concepts.