Glass Bead Game applet now clickable

Ed has aken care of yet another loose end in the ArenA. Here's the (hidden) background of the new Glass Bead Game applet, 2x5 pits and 2 collecting cups in the middle, and precise coordinates for every individual bead.

Move notation hasn't changed, but the applet is now clickable. Here's the same example game as before, but in its new housing.