Fills **Address_lineEdit** Widget.

def __Address_lineEdit_set_ui(self):
        """
        Fills **Address_lineEdit** Widget.
        """

        # Adding settings key if it doesn't exists.
        self.__settings.get_key(self.__settings_section, "address").isNull() and \
        self.__settings.set_key(self.__settings_section, "address", self.__address)

        address = self.__settings.get_key(self.__settings_section, "address").toString()
        LOGGER.debug("> Setting '{0}' with value '{1}'.".format("Address_lineEdit",
                                                                address))
        self.__address = address
        self.Address_lineEdit.setText(address)