Patched panel-profile.c to have multiple Xscreens work.

For newer versions of the panel, if you have multiple X screens, that is to say:
DISPLAY=:0.0 DISPLAY=:0.1 the panel will create two menus on screen 0, and none on screen 1.

The desired behavior is one menu per X screen.  This gets very important if you are running multiple video cards and multiple monitors.

When running only one X screen this patch shouldn't matter.

The stacking of menus and icons on the first screen has been happening since the gnome-panel >2.1 days.  It happens on anything that forked off of newer versions of Gnome 2.

This patch, although crudely written, restores the desired behavior.
Please modify it to your content and apply it to all versions of the panel.

Thank You.