Update the cinnamon stack to the latest in the 2.4 series.

sysutils/cinnamon-settings-daemon to 2.4.3.
x11/cinnamon to 2.4.6.
x11/cinnamon-screensaver to 2.4.1.
x11/cinnamon-session to 2.4.3.
x11-fm/nemo to 2.4.5.
x11-wm/muffin to 2.4.4.

Switch cinnamon to py-pillow instead of py-imaging which seems to be

discontinued upstream.

Thanks to Gustau Pérez <gustau.perez@gmail.com> for helping to kee

these ports updated.

Obtained from: GNOME dev repo