Suggestion: Accept a second return value from the translator function

[jcrmatos]

Please accept a second return value from the translator function (if possible make it an optional one) so that we can return not only the translated string, but also the underline position. The underline position is important for menu items and buttons (at least), and it changes with the language used.

[alejandroautalan]

Tip for this issue for future implementation:

• Allow to pass a translator object to the builder,
• This translator class/object will have a translate method that will receive the string to translate and the current widget.
• So the function can modify the widget according to translation.
• Also will need to move translation from xml loading (Uidefinition) to widget creation and configuration.