add iface screen to lcdproc; change option -d back to -f

clients/lcdproc/mem.c

@@ -255,7 +255,9 @@ mem_top_screen (int rep, int display, int *flags_ptr)
 		// frame from (2nd line, left) to (last line, right)
 		sock_send_string(sock, "widget_add S f frame\n");
 		sprintf(buffer, "widget_set S f 1 2 %i %i %i 5 v %i\n",
-			lcd_wid, lcd_hgt, lcd_wid, ((lcd_hgt >= 4) ? 8 : 12));
+			lcd_wid, lcd_hgt, lcd_wid,
+			// scroll rate: 1 line every X ticks (= 1/8 sec)
+			((lcd_hgt >= 4) ? 8 : 12));
 		sock_send_string(sock, buffer);
 
 		// frame contents