Add to string implementation for the new accessibility actions.

                return "ACTION_SCROLL_FORWARD";

            case ACTION_SCROLL_BACKWARD:

                return "ACTION_SCROLL_BACKWARD";

            case ACTION_CUT:

                return "ACTION_CUT";

            case ACTION_COPY:

                return "ACTION_COPY";

            case ACTION_PASTE:

                return "ACTION_PASTE";

            case ACTION_SET_SELECTION:

                return "ACTION_SET_SELECTION";

            default:

                throw new IllegalArgumentException("Unknown action: " + action);

                return"ACTION_UNKNOWN";

        }

    }