MaMuT_: polishing prior upload

Signed-off-by: Jean-Yves Tinevez <jeanyves.tinevez@gmail.com>
MaMuT_: some polishing

Signed-off-by: Jean-Yves Tinevez <jeanyves.tinevez@gmail.com>
MaMuT_: the mamouth icon is now transparent

Signed-off-by: Jean-Yves Tinevez <jeanyves.tinevez@gmail.com>
MaMuT_: save over properly with the right target image link

Signed-off-by: Jean-Yves Tinevez <jeanyves.tinevez@gmail.com>