Return all waiting feedbacks from buyers.

def getWaitingFeedbacks(self):
        """Return all waiting feedbacks from buyers."""
        # TODO: return sorted dictionary (negative/positive/neutral)
        feedbacks = []
        offset = 0
        amount = self.__ask__('doGetWaitingFeedbacksCount')
        while amount > 0:
            rc = self.__ask__('doGetWaitingFeedbacks',
                              offset=offset, packageSize=200)
            feedbacks.extend(rc['feWaitList'])
            amount -= 200
            offset += 1
        return feedbacks