usb mass storage support. user initiated recovery is now user friendly.
diff --git a/recovery_ui.h b/recovery_ui.h
index 7165007..51f8817 100644
--- a/recovery_ui.h
+++ b/recovery_ui.h
@@ -71,6 +71,7 @@
 #define ITEM_BACKUP          5
 #define ITEM_RESTORE         6
 #define ITEM_MOUNT_SDCARD    7
+#define ITEM_MOUNT_USB       8
 
 // Header text to display above the main menu.
 extern char* MENU_HEADERS[];