13::
    The module ``string_use`` has a new class ``FindGroups`` for searching groups delimited by parenthesis, quotes, ...

    **Bug:** empty lists, empty tuples and empty dictionaries were not managed by the function ``pyRepr``.

    **Refactoring 1:** the functions ``isUpperRoman`` and ``isLowerRoman`` of the module ``regex_use`` have been replaced by one single function ``isRoman`` with an optional argument ``case`` which indicates the case expected.

    **Refactoring 2:** the default formats for the function ``frame`` in the module ``string_use`` are now in a single dictionary ``FRAME_FORMATS`` so as to easy have all the default formats available.

    **Warning !** A lot of renamings have been made.

    1) In the module ``date_use``, the variables ``dateTime`` and ``strFormat`` of the function ``translate`` have been renamed ``date`` and ``format`` respectively.

    2) In the module ``os_use``, the variable ``listPath`` of the function ``commonPath`` have been renamed ``paths``.

    3) In the module ``string_use``, the initialization variables ``listWord`` and ``dict`` of the class ``AutoComplete`` become ``words`` and ``dictAsso`` respectively. The variable ``listText`` of the function ``joinAnd`` is now called ``texts``, and the class ``step`` becomes ``Step``.
