Add in a capacity widget and set up the callbacks to update it.

ecdb/trunk/data/themes/default/images/images.edc

@@ -25,4 +25,8 @@ images {
 	image: "combobox_button_clicked.png" COMP;
 	image: "combobox_button_disabled.png" COMP;
 	image: "combo_arrow.png" COMP;
+	image: "progress_bar_fill_0.png" COMP;
+	image: "progress_bar_left.png" COMP;
+	image: "progress_bar_right.png" COMP;
+	image: "progress_trough.png" COMP;
 }