Fixed issue #1885: Menu entry "SVN Rebase..." should have no ellipsis

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
Drop unused code

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
Add the ellipsis to menu items where needed

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>