Merge branch 'release_20.01' into release_20.05

    def __init__(self):

        Group.__init__(self)

        self.title = None

        self._title = None

        self.inputs = None

        self.help = None

        self.default = 0

        self.min = None

        self.max = None

    @property

    def title(self):

        return self._title or self.name

    @title.setter

    def title(self, value):

        self._title = value

    @property

    def title_plural(self):

        return inflector.pluralize(self.title)