added more keybindings (Reply, reply All, Compose, Forward, Quit-to-index

    public boolean onKeyDown(int keyCode, KeyEvent event) {

        int group = mListView.getPackedPositionGroup(mListView.getSelectedId());

        int item =(mListView.getSelectedItemPosition() -1 );

        if (item >= 0) { // Guard against hitting delete on group names

        switch (keyCode) {

            case KeyEvent.KEYCODE_DEL: {

                if (true) {

                // Guard against hitting delete on group names

                //

        try {

        MessageInfoHolder message = (MessageInfoHolder) mAdapter.getChild(group, item);

                    onDelete(message);

                }

                return true;

            }

        switch (keyCode) {

            case KeyEvent.KEYCODE_DEL: { onDelete(message); return true;}

            case KeyEvent.KEYCODE_C: { onCompose(); return true;}

            case KeyEvent.KEYCODE_Q: { onAccounts(); return true; }

            case KeyEvent.KEYCODE_F: { onForward(message); return true;}

            case KeyEvent.KEYCODE_A: { onReplyAll(message); return true; } 

            case KeyEvent.KEYCODE_R: { onReply(message); return true; }

            }

        }

        finally {

        return super.onKeyDown(keyCode, event);

        }

    }

    @Override