Update mail/claws-mail to version 3.9.1_1
Update x11/xfce4-conf to version 4.10.0_4
Update x11-toolkits/libxfce4gui to version 4.10.0_2
Update x11/libxfce4menu to version 4.10.0_4
Update x11/libexo to version 0.10.2_2